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 Go to latest Published: Mar 20, 2022 License: Apache-2.0 Imports: 57 Imported by: 0

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Constants

View Source 
const (
	SeqOptAs        = "AS"
	SeqOptCycle     = "CYCLE"
	SeqOptNoCycle   = "NO CYCLE"
	SeqOptOwnedBy   = "OWNED BY"
	SeqOptCache     = "CACHE"
	SeqOptIncrement = "INCREMENT"
	SeqOptMinValue  = "MINVALUE"
	SeqOptMaxValue  = "MAXVALUE"
	SeqOptStart     = "START"
	SeqOptVirtual   = "VIRTUAL"
)

Names of options on CREATE SEQUENCE.

View Source 
const (
	DistinctFuncType funcType
	AllFuncType
)

FuncExpr.Type

View Source 
const (
	CastExplicit castSyntaxMode = iota
	CastShort
	CastPrepend
)

These constants separate the syntax X::Y from CAST(X AS Y).

View Source 
const (
	AnnotateExplicit annotateSyntaxMode = iota
	AnnotateShort
)

These constants separate the syntax X:::Y from ANNOTATE_TYPE(X, Y)

View Source 
const (
	// PrettyNoAlign disables alignment.
	PrettyNoAlign PrettyAlignMode = 0
	// PrettyAlignOnly aligns sub-clauses only and preserves the
	// hierarchy of logical operators.
	PrettyAlignOnly = 1
	// PrettyAlignAndDeindent does the work of PrettyAlignOnly and also
	// de-indents AND and OR operators.
	PrettyAlignAndDeindent = 2
	// PrettyAlignAndExtraIndent does the work of PrettyAlignOnly and
	// also extra indents the operands of AND and OR operators so
	// that they appear aligned but also indented.
	PrettyAlignAndExtraIndent = 3
)
View Source 
const (
	// DefaultLineWidth is the line width used with the default pretty-printing configuration.
	DefaultLineWidth = 60
	// ConsoleLineWidth is the line width used on the frontend console.
	ConsoleLineWidth = 108
)
View Source 
const (
	// RegionEnum is the name of the per-database region enum required for
	// multi-region.
	RegionEnum string = "crdb_internal_region"
	// RegionalByRowRegionDefaultCol is the default name of the REGIONAL BY ROW
	// column name if the AS field is not populated.
	RegionalByRowRegionDefaultCol string = "crdb_region"
	// RegionalByRowRegionDefaultColName is the same, typed as Name.
	RegionalByRowRegionDefaultColName Name = Name(RegionalByRowRegionDefaultCol)
	// RegionalByRowRegionNotSpecifiedName is the string denoting the REGIONAL BY ROW
	// has no AS <col> specified.
	// TODO(#59455): clean this up to use something nicer.
	RegionalByRowRegionNotSpecifiedName = ""
	// PrimaryRegionNotSpecifiedName is the string denoting the lack of primary region in the
	// locality config.
	// TODO(#59455): clean this up to use something nicer.
	PrimaryRegionNotSpecifiedName Name = ""
)
View Source 
const (
	TelemetryNameGlobal            = "global"
	TelemetryNameRegionalByTable   = "regional_by_table"
	TelemetryNameRegionalByTableIn = "regional_by_table_in"
	TelemetryNameRegionalByRow     = "regional_by_row"
	TelemetryNameRegionalByRowAs   = "regional_by_row_as"
)

Constants to use for telemetry for multi-region table localities.

View Source 
const (
	// ScrubTable describes the SCRUB operation SCRUB TABLE.
	ScrubTable = iota
	// ScrubDatabase describes the SCRUB operation SCRUB DATABASE.
	ScrubDatabase = iota
)
View Source 
const (
	AstFull  = "FULL"
	AstLeft  = "LEFT"
	AstRight = "RIGHT"
	AstCross = "CROSS"
	AstInner = "INNER"
)

JoinTableExpr.Join

View Source 
const (
	AstHash     = "HASH"
	AstLookup   = "LOOKUP"
	AstMerge    = "MERGE"
	AstInverted = "INVERTED"
)

JoinTableExpr.Hint

View Source 
const (
	AstWhere  = "WHERE"
	AstHaving = "HAVING"
)

Where.Type

View Source 
const ColumnLimit = 15

ColumnLimit is the max character limit for columns in summarized queries

View Source 
const DefaultCollationTag = "default"

DefaultCollationTag is the "default" collation for strings.

View Source 
const FollowerReadTimestampExperimentalFunctionName = "experimental_follower_read_timestamp"

FollowerReadTimestampExperimentalFunctionName is the name of the old "experimental_" function, which we keep for backwards compatibility.

View Source 
const FollowerReadTimestampFunctionName = "follower_read_timestamp"

FollowerReadTimestampFunctionName is the name of the function which can be used with AOST clauses to generate a timestamp likely to be safe for follower reads.

View Source 
const LikeTableOptAll = ^likeTableOptInvalid

LikeTableOptAll is the full LikeTableOpt bitmap.

View Source 
const MaxPlaceholderIdx = math.MaxUint16

MaxPlaceholderIdx is the maximum allowed value of a PlaceholderIdx. The pgwire protocol is limited to 2^16 placeholders, so we limit the IDs to this range as well.

View Source 
const NoColumnIdx = -1

NoColumnIdx is a special value that can be used as a "column index" to indicate that the column is not present.

View Source 
const PasswordSubstitution = "'*****'"

PasswordSubstitution is the string that replaces passwords unless FmtShowPasswords is specified.

View Source 
const TableLimit = 30

TableLimit is the max character limit for tables in summarized queries

View Source 
const WithMaxStalenessFunctionName = "with_max_staleness"

WithMaxStalenessFunctionName is the name of the function that can be used with AOST clauses to generate a bounded staleness at a maximum interval.

View Source 
const WithMinTimestampFunctionName = "with_min_timestamp"

WithMinTimestampFunctionName is the name of the function that can be used with AOST clauses to generate a bounded staleness at a fixed timestamp.

View Source 
const ZeroOidValue = "-"

ZeroOidValue represents the 0 oid value as '-', which matches the Postgres representation.

Variables

View Source 
var (

	// NumValAvailInteger is the set of available integer types.
	NumValAvailInteger = append(intLikeTypes, decimalLikeTypes...)
	// NumValAvailDecimalNoFraction is the set of available integral numeric types.
	NumValAvailDecimalNoFraction = append(decimalLikeTypes, intLikeTypes...)
	// NumValAvailDecimalWithFraction is the set of available fractional numeric types.
	NumValAvailDecimalWithFraction = decimalLikeTypes
)
View Source 
var (
	// StrValAvailAllParsable is the set of parsable string types.
	StrValAvailAllParsable = []*types.T{

		types.String,
		types.Bytes,
		types.Bool,
		types.Int,
		types.Float,
		types.Decimal,
		types.Date,
		types.StringArray,
		types.BytesArray,
		types.IntArray,
		types.FloatArray,
		types.DecimalArray,
		types.BoolArray,
		types.Box2D,
		types.Geography,
		types.Geometry,
		types.Time,
		types.TimeTZ,
		types.Timestamp,
		types.TimestampTZ,
		types.Interval,
		types.Uuid,
		types.DateArray,
		types.TimeArray,
		types.TimeTZArray,
		types.TimestampArray,
		types.TimestampTZArray,
		types.IntervalArray,
		types.UUIDArray,
		types.INet,
		types.Jsonb,
		types.VarBit,
		types.AnyEnum,
		types.AnyEnumArray,
		types.INetArray,
		types.VarBitArray,
		types.AnyTuple,
		types.AnyTupleArray,
	}
	// StrValAvailBytes is the set of types convertible to byte array.
	StrValAvailBytes = []*types.T{types.Bytes, types.Uuid, types.String, types.AnyEnum}
)
View Source 
var (

	// DBoolTrue is a pointer to the DBool(true) value and can be used in
	// comparisons against Datum types.
	DBoolTrue = &constDBoolTrue
	// DBoolFalse is a pointer to the DBool(false) value and can be used in
	// comparisons against Datum types.
	DBoolFalse = &constDBoolFalse

	// DNull is the NULL Datum.
	DNull Datum = dNull{}

	// DZero is the zero-valued integer Datum.
	DZero = NewDInt(0)

	// DTimeMaxTimeRegex is a compiled regex for parsing the 24:00 time value.
	DTimeMaxTimeRegex = regexp.MustCompile(`^([0-9-]*(\s|T))?\s*24:00(:00(.0+)?)?\s*$`)

	// MaxSupportedTime is the maximum time we support parsing.
	MaxSupportedTime = timeutil.Unix(9224318016000-1, 999999000) // 294276-12-31 23:59:59.999999
	// MinSupportedTime is the minimum time we support parsing.
	MinSupportedTime = timeutil.Unix(-210866803200, 0) // 4714-11-24 00:00:00+00 BC
)
View Source 
var (

	// DMinTimeTZ is the min TimeTZ.
	DMinTimeTZ = NewDTimeTZFromOffset(timeofday.Min, timetz.MinTimeTZOffsetSecs)
	// DMaxTimeTZ is the max TimeTZ.
	DMaxTimeTZ = NewDTimeTZFromOffset(timeofday.Max, timetz.MaxTimeTZOffsetSecs)
)
View Source 
var (
	// DecimalCtx is the default context for decimal operations. Any change
	// in the exponent limits must still guarantee a safe conversion to the
	// postgres binary decimal format in the wire protocol, which uses an
	// int16. See pgwire/types.go.
	DecimalCtx = &apd.Context{
		Precision:   20,
		Rounding:    apd.RoundHalfUp,
		MaxExponent: 2000,
		MinExponent: -2000,

		Traps: apd.DefaultTraps &^ apd.InvalidOperation,
	}
	// ExactCtx is a decimal context with exact precision.
	ExactCtx = DecimalCtx.WithPrecision(0)
	// HighPrecisionCtx is a decimal context with high precision.
	HighPrecisionCtx = DecimalCtx.WithPrecision(2000)
	// IntermediateCtx is a decimal context with additional precision for
	// intermediate calculations to protect against order changes that can
	// happen in dist SQL. The additional 5 allows the stress test to pass.
	// See #13689 for more analysis and other algorithms.
	IntermediateCtx = DecimalCtx.WithPrecision(DecimalCtx.Precision + 5)
	// RoundCtx is a decimal context with high precision and RoundHalfEven
	// rounding.
	RoundCtx = func() *apd.Context {
		ctx := *HighPrecisionCtx
		ctx.Rounding = apd.RoundHalfEven
		return &ctx
	}()
)
View Source 
var (
	// ErrIntOutOfRange is reported when integer arithmetic overflows.
	ErrIntOutOfRange = pgerror.New(pgcode.NumericValueOutOfRange, "integer out of range")
	// ErrInt4OutOfRange is reported when casting to INT4 overflows.
	ErrInt4OutOfRange = pgerror.New(pgcode.NumericValueOutOfRange, "integer out of range for type int4")
	// ErrInt2OutOfRange is reported when casting to INT2 overflows.
	ErrInt2OutOfRange = pgerror.New(pgcode.NumericValueOutOfRange, "integer out of range for type int2")
	// ErrFloatOutOfRange is reported when float arithmetic overflows.
	ErrFloatOutOfRange = pgerror.New(pgcode.NumericValueOutOfRange, "float out of range")
	// ErrDecOutOfRange is reported when decimal arithmetic overflows.
	ErrDecOutOfRange = pgerror.New(pgcode.NumericValueOutOfRange, "decimal out of range")

	// ErrDivByZero is reported on a division by zero.
	ErrDivByZero = pgerror.New(pgcode.DivisionByZero, "division by zero")

	// ErrShiftArgOutOfRange is reported when a shift argument is out of range.
	ErrShiftArgOutOfRange = pgerror.New(pgcode.InvalidParameterValue, "shift argument out of range")
)
View Source 
var AbsentReturningClause = &NoReturningClause{}

AbsentReturningClause is a ReturningClause variant representing the absence of a RETURNING clause.

View Source 
var BinOps = map[treebin.BinaryOperatorSymbol]binOpOverload{
	treebin.Bitand: {
		&BinOp{
			LeftType:   types.Int,
			RightType:  types.Int,
			ReturnType: types.Int,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				return NewDInt(MustBeDInt(left) & MustBeDInt(right)), nil
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.VarBit,
			RightType:  types.VarBit,
			ReturnType: types.VarBit,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				lhs := MustBeDBitArray(left)
				rhs := MustBeDBitArray(right)
				if lhs.BitLen() != rhs.BitLen() {
					return nil, NewCannotMixBitArraySizesError("AND")
				}
				return &DBitArray{
					BitArray: bitarray.And(lhs.BitArray, rhs.BitArray),
				}, nil
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.INet,
			RightType:  types.INet,
			ReturnType: types.INet,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				ipAddr := MustBeDIPAddr(left).IPAddr
				other := MustBeDIPAddr(right).IPAddr
				newIPAddr, err := ipAddr.And(&other)
				return NewDIPAddr(DIPAddr{newIPAddr}), err
			},
			Volatility: VolatilityImmutable,
		},
	},

	treebin.Bitor: {
		&BinOp{
			LeftType:   types.Int,
			RightType:  types.Int,
			ReturnType: types.Int,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				return NewDInt(MustBeDInt(left) | MustBeDInt(right)), nil
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.VarBit,
			RightType:  types.VarBit,
			ReturnType: types.VarBit,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				lhs := MustBeDBitArray(left)
				rhs := MustBeDBitArray(right)
				if lhs.BitLen() != rhs.BitLen() {
					return nil, NewCannotMixBitArraySizesError("OR")
				}
				return &DBitArray{
					BitArray: bitarray.Or(lhs.BitArray, rhs.BitArray),
				}, nil
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.INet,
			RightType:  types.INet,
			ReturnType: types.INet,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				ipAddr := MustBeDIPAddr(left).IPAddr
				other := MustBeDIPAddr(right).IPAddr
				newIPAddr, err := ipAddr.Or(&other)
				return NewDIPAddr(DIPAddr{newIPAddr}), err
			},
			Volatility: VolatilityImmutable,
		},
	},

	treebin.Bitxor: {
		&BinOp{
			LeftType:   types.Int,
			RightType:  types.Int,
			ReturnType: types.Int,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				return NewDInt(MustBeDInt(left) ^ MustBeDInt(right)), nil
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.VarBit,
			RightType:  types.VarBit,
			ReturnType: types.VarBit,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				lhs := MustBeDBitArray(left)
				rhs := MustBeDBitArray(right)
				if lhs.BitLen() != rhs.BitLen() {
					return nil, NewCannotMixBitArraySizesError("XOR")
				}
				return &DBitArray{
					BitArray: bitarray.Xor(lhs.BitArray, rhs.BitArray),
				}, nil
			},
			Volatility: VolatilityImmutable,
		},
	},

	treebin.Plus: {
		&BinOp{
			LeftType:   types.Int,
			RightType:  types.Int,
			ReturnType: types.Int,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				a, b := MustBeDInt(left), MustBeDInt(right)
				r, ok := arith.AddWithOverflow(int64(a), int64(b))
				if !ok {
					return nil, ErrIntOutOfRange
				}
				return NewDInt(DInt(r)), nil
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Float,
			RightType:  types.Float,
			ReturnType: types.Float,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				return NewDFloat(*left.(*DFloat) + *right.(*DFloat)), nil
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Decimal,
			RightType:  types.Decimal,
			ReturnType: types.Decimal,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				l := &left.(*DDecimal).Decimal
				r := &right.(*DDecimal).Decimal
				dd := &DDecimal{}
				_, err := ExactCtx.Add(&dd.Decimal, l, r)
				return dd, err
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Decimal,
			RightType:  types.Int,
			ReturnType: types.Decimal,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				l := &left.(*DDecimal).Decimal
				r := MustBeDInt(right)
				dd := &DDecimal{}
				dd.SetInt64(int64(r))
				_, err := ExactCtx.Add(&dd.Decimal, l, &dd.Decimal)
				return dd, err
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Int,
			RightType:  types.Decimal,
			ReturnType: types.Decimal,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				l := MustBeDInt(left)
				r := &right.(*DDecimal).Decimal
				dd := &DDecimal{}
				dd.SetInt64(int64(l))
				_, err := ExactCtx.Add(&dd.Decimal, &dd.Decimal, r)
				return dd, err
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Date,
			RightType:  types.Int,
			ReturnType: types.Date,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				d, err := left.(*DDate).AddDays(int64(MustBeDInt(right)))
				if err != nil {
					return nil, err
				}
				return NewDDate(d), nil
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Int,
			RightType:  types.Date,
			ReturnType: types.Date,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				d, err := right.(*DDate).AddDays(int64(MustBeDInt(left)))
				if err != nil {
					return nil, err
				}
				return NewDDate(d), nil

			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Date,
			RightType:  types.Time,
			ReturnType: types.Timestamp,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				leftTime, err := left.(*DDate).ToTime()
				if err != nil {
					return nil, err
				}
				t := time.Duration(*right.(*DTime)) * time.Microsecond
				return MakeDTimestamp(leftTime.Add(t), time.Microsecond)
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Time,
			RightType:  types.Date,
			ReturnType: types.Timestamp,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				rightTime, err := right.(*DDate).ToTime()
				if err != nil {
					return nil, err
				}
				t := time.Duration(*left.(*DTime)) * time.Microsecond
				return MakeDTimestamp(rightTime.Add(t), time.Microsecond)
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Date,
			RightType:  types.TimeTZ,
			ReturnType: types.TimestampTZ,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				leftTime, err := left.(*DDate).ToTime()
				if err != nil {
					return nil, err
				}
				t := leftTime.Add(right.(*DTimeTZ).ToDuration())
				return MakeDTimestampTZ(t, time.Microsecond)
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.TimeTZ,
			RightType:  types.Date,
			ReturnType: types.TimestampTZ,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				rightTime, err := right.(*DDate).ToTime()
				if err != nil {
					return nil, err
				}
				t := rightTime.Add(left.(*DTimeTZ).ToDuration())
				return MakeDTimestampTZ(t, time.Microsecond)
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Time,
			RightType:  types.Interval,
			ReturnType: types.Time,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				t := timeofday.TimeOfDay(*left.(*DTime))
				return MakeDTime(t.Add(right.(*DInterval).Duration)), nil
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Interval,
			RightType:  types.Time,
			ReturnType: types.Time,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				t := timeofday.TimeOfDay(*right.(*DTime))
				return MakeDTime(t.Add(left.(*DInterval).Duration)), nil
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.TimeTZ,
			RightType:  types.Interval,
			ReturnType: types.TimeTZ,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				t := left.(*DTimeTZ)
				duration := right.(*DInterval).Duration
				return NewDTimeTZFromOffset(t.Add(duration), t.OffsetSecs), nil
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Interval,
			RightType:  types.TimeTZ,
			ReturnType: types.TimeTZ,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				t := right.(*DTimeTZ)
				duration := left.(*DInterval).Duration
				return NewDTimeTZFromOffset(t.Add(duration), t.OffsetSecs), nil
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Timestamp,
			RightType:  types.Interval,
			ReturnType: types.Timestamp,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				return MakeDTimestamp(duration.Add(
					left.(*DTimestamp).Time, right.(*DInterval).Duration), time.Microsecond)
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Interval,
			RightType:  types.Timestamp,
			ReturnType: types.Timestamp,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				return MakeDTimestamp(duration.Add(
					right.(*DTimestamp).Time, left.(*DInterval).Duration), time.Microsecond)
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.TimestampTZ,
			RightType:  types.Interval,
			ReturnType: types.TimestampTZ,
			Fn: func(ctx *EvalContext, left Datum, right Datum) (Datum, error) {

				t := duration.Add(left.(*DTimestampTZ).Time.In(ctx.GetLocation()), right.(*DInterval).Duration)
				return MakeDTimestampTZ(t, time.Microsecond)
			},
			Volatility: VolatilityStable,
		},
		&BinOp{
			LeftType:   types.Interval,
			RightType:  types.TimestampTZ,
			ReturnType: types.TimestampTZ,
			Fn: func(ctx *EvalContext, left Datum, right Datum) (Datum, error) {

				t := duration.Add(right.(*DTimestampTZ).Time.In(ctx.GetLocation()), left.(*DInterval).Duration)
				return MakeDTimestampTZ(t, time.Microsecond)
			},
			Volatility: VolatilityStable,
		},
		&BinOp{
			LeftType:   types.Interval,
			RightType:  types.Interval,
			ReturnType: types.Interval,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				return &DInterval{Duration: left.(*DInterval).Duration.Add(right.(*DInterval).Duration)}, nil
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Date,
			RightType:  types.Interval,
			ReturnType: types.Timestamp,
			Fn: func(ctx *EvalContext, left Datum, right Datum) (Datum, error) {
				leftTime, err := left.(*DDate).ToTime()
				if err != nil {
					return nil, err
				}
				t := duration.Add(leftTime, right.(*DInterval).Duration)
				return MakeDTimestamp(t, time.Microsecond)
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Interval,
			RightType:  types.Date,
			ReturnType: types.Timestamp,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				rightTime, err := right.(*DDate).ToTime()
				if err != nil {
					return nil, err
				}
				t := duration.Add(rightTime, left.(*DInterval).Duration)
				return MakeDTimestamp(t, time.Microsecond)
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.INet,
			RightType:  types.Int,
			ReturnType: types.INet,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				ipAddr := MustBeDIPAddr(left).IPAddr
				i := MustBeDInt(right)
				newIPAddr, err := ipAddr.Add(int64(i))
				return NewDIPAddr(DIPAddr{newIPAddr}), err
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Int,
			RightType:  types.INet,
			ReturnType: types.INet,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				i := MustBeDInt(left)
				ipAddr := MustBeDIPAddr(right).IPAddr
				newIPAddr, err := ipAddr.Add(int64(i))
				return NewDIPAddr(DIPAddr{newIPAddr}), err
			},
			Volatility: VolatilityImmutable,
		},
	},

	treebin.Minus: {
		&BinOp{
			LeftType:   types.Int,
			RightType:  types.Int,
			ReturnType: types.Int,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				a, b := MustBeDInt(left), MustBeDInt(right)
				r, ok := arith.SubWithOverflow(int64(a), int64(b))
				if !ok {
					return nil, ErrIntOutOfRange
				}
				return NewDInt(DInt(r)), nil
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Float,
			RightType:  types.Float,
			ReturnType: types.Float,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				return NewDFloat(*left.(*DFloat) - *right.(*DFloat)), nil
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Decimal,
			RightType:  types.Decimal,
			ReturnType: types.Decimal,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				l := &left.(*DDecimal).Decimal
				r := &right.(*DDecimal).Decimal
				dd := &DDecimal{}
				_, err := ExactCtx.Sub(&dd.Decimal, l, r)
				return dd, err
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Decimal,
			RightType:  types.Int,
			ReturnType: types.Decimal,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				l := &left.(*DDecimal).Decimal
				r := MustBeDInt(right)
				dd := &DDecimal{}
				dd.SetInt64(int64(r))
				_, err := ExactCtx.Sub(&dd.Decimal, l, &dd.Decimal)
				return dd, err
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Int,
			RightType:  types.Decimal,
			ReturnType: types.Decimal,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				l := MustBeDInt(left)
				r := &right.(*DDecimal).Decimal
				dd := &DDecimal{}
				dd.SetInt64(int64(l))
				_, err := ExactCtx.Sub(&dd.Decimal, &dd.Decimal, r)
				return dd, err
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Date,
			RightType:  types.Int,
			ReturnType: types.Date,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				d, err := left.(*DDate).SubDays(int64(MustBeDInt(right)))
				if err != nil {
					return nil, err
				}
				return NewDDate(d), nil
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Date,
			RightType:  types.Date,
			ReturnType: types.Int,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				l, r := left.(*DDate).Date, right.(*DDate).Date
				if !l.IsFinite() || !r.IsFinite() {
					return nil, pgerror.New(pgcode.DatetimeFieldOverflow, "cannot subtract infinite dates")
				}
				a := l.PGEpochDays()
				b := r.PGEpochDays()

				return NewDInt(DInt(int64(a) - int64(b))), nil
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Date,
			RightType:  types.Time,
			ReturnType: types.Timestamp,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				leftTime, err := left.(*DDate).ToTime()
				if err != nil {
					return nil, err
				}
				t := time.Duration(*right.(*DTime)) * time.Microsecond
				return MakeDTimestamp(leftTime.Add(-1*t), time.Microsecond)
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Time,
			RightType:  types.Time,
			ReturnType: types.Interval,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				t1 := timeofday.TimeOfDay(*left.(*DTime))
				t2 := timeofday.TimeOfDay(*right.(*DTime))
				diff := timeofday.Difference(t1, t2)
				return &DInterval{Duration: diff}, nil
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Timestamp,
			RightType:  types.Timestamp,
			ReturnType: types.Interval,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				nanos := left.(*DTimestamp).Sub(right.(*DTimestamp).Time).Nanoseconds()
				return &DInterval{Duration: duration.MakeDurationJustifyHours(nanos, 0, 0)}, nil
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.TimestampTZ,
			RightType:  types.TimestampTZ,
			ReturnType: types.Interval,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				nanos := left.(*DTimestampTZ).Sub(right.(*DTimestampTZ).Time).Nanoseconds()
				return &DInterval{Duration: duration.MakeDurationJustifyHours(nanos, 0, 0)}, nil
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Timestamp,
			RightType:  types.TimestampTZ,
			ReturnType: types.Interval,
			Fn: func(ctx *EvalContext, left Datum, right Datum) (Datum, error) {

				stripped, err := right.(*DTimestampTZ).stripTimeZone(ctx)
				if err != nil {
					return nil, err
				}
				nanos := left.(*DTimestamp).Sub(stripped.Time).Nanoseconds()
				return &DInterval{Duration: duration.MakeDurationJustifyHours(nanos, 0, 0)}, nil
			},
			Volatility: VolatilityStable,
		},
		&BinOp{
			LeftType:   types.TimestampTZ,
			RightType:  types.Timestamp,
			ReturnType: types.Interval,
			Fn: func(ctx *EvalContext, left Datum, right Datum) (Datum, error) {

				stripped, err := left.(*DTimestampTZ).stripTimeZone(ctx)
				if err != nil {
					return nil, err
				}
				nanos := stripped.Sub(right.(*DTimestamp).Time).Nanoseconds()
				return &DInterval{Duration: duration.MakeDurationJustifyHours(nanos, 0, 0)}, nil
			},
			Volatility: VolatilityStable,
		},
		&BinOp{
			LeftType:   types.Time,
			RightType:  types.Interval,
			ReturnType: types.Time,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				t := timeofday.TimeOfDay(*left.(*DTime))
				return MakeDTime(t.Add(right.(*DInterval).Duration.Mul(-1))), nil
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.TimeTZ,
			RightType:  types.Interval,
			ReturnType: types.TimeTZ,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				t := left.(*DTimeTZ)
				duration := right.(*DInterval).Duration
				return NewDTimeTZFromOffset(t.Add(duration.Mul(-1)), t.OffsetSecs), nil
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Timestamp,
			RightType:  types.Interval,
			ReturnType: types.Timestamp,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				return MakeDTimestamp(duration.Add(
					left.(*DTimestamp).Time, right.(*DInterval).Duration.Mul(-1)), time.Microsecond)
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.TimestampTZ,
			RightType:  types.Interval,
			ReturnType: types.TimestampTZ,
			Fn: func(ctx *EvalContext, left Datum, right Datum) (Datum, error) {
				t := duration.Add(
					left.(*DTimestampTZ).Time.In(ctx.GetLocation()),
					right.(*DInterval).Duration.Mul(-1),
				)
				return MakeDTimestampTZ(t, time.Microsecond)
			},
			Volatility: VolatilityStable,
		},
		&BinOp{
			LeftType:   types.Date,
			RightType:  types.Interval,
			ReturnType: types.Timestamp,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				leftTime, err := left.(*DDate).ToTime()
				if err != nil {
					return nil, err
				}
				t := duration.Add(leftTime, right.(*DInterval).Duration.Mul(-1))
				return MakeDTimestamp(t, time.Microsecond)
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Interval,
			RightType:  types.Interval,
			ReturnType: types.Interval,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				return &DInterval{Duration: left.(*DInterval).Duration.Sub(right.(*DInterval).Duration)}, nil
			},
			Volatility: VolatilityImmutable,
		},

		&BinOp{
			LeftType:   types.INet,
			RightType:  types.INet,
			ReturnType: types.Int,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				ipAddr := MustBeDIPAddr(left).IPAddr
				other := MustBeDIPAddr(right).IPAddr
				diff, err := ipAddr.SubIPAddr(&other)
				return NewDInt(DInt(diff)), err
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{

			LeftType:   types.INet,
			RightType:  types.Int,
			ReturnType: types.INet,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				ipAddr := MustBeDIPAddr(left).IPAddr
				i := MustBeDInt(right)
				newIPAddr, err := ipAddr.Sub(int64(i))
				return NewDIPAddr(DIPAddr{newIPAddr}), err
			},
			Volatility: VolatilityImmutable,
		},
	},

	treebin.Mult: {
		&BinOp{
			LeftType:   types.Int,
			RightType:  types.Int,
			ReturnType: types.Int,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {

				a, b := MustBeDInt(left), MustBeDInt(right)
				c := a * b
				if a == 0 || b == 0 || a == 1 || b == 1 {

				} else if a == math.MinInt64 || b == math.MinInt64 {

					return nil, ErrIntOutOfRange
				} else if c/b != a {
					return nil, ErrIntOutOfRange
				}
				return NewDInt(c), nil
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Float,
			RightType:  types.Float,
			ReturnType: types.Float,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				return NewDFloat(*left.(*DFloat) * *right.(*DFloat)), nil
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Decimal,
			RightType:  types.Decimal,
			ReturnType: types.Decimal,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				l := &left.(*DDecimal).Decimal
				r := &right.(*DDecimal).Decimal
				dd := &DDecimal{}
				_, err := ExactCtx.Mul(&dd.Decimal, l, r)
				return dd, err
			},
			Volatility: VolatilityImmutable,
		},

		&BinOp{
			LeftType:   types.Decimal,
			RightType:  types.Int,
			ReturnType: types.Decimal,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				l := &left.(*DDecimal).Decimal
				r := MustBeDInt(right)
				dd := &DDecimal{}
				dd.SetInt64(int64(r))
				_, err := ExactCtx.Mul(&dd.Decimal, l, &dd.Decimal)
				return dd, err
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Int,
			RightType:  types.Decimal,
			ReturnType: types.Decimal,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				l := MustBeDInt(left)
				r := &right.(*DDecimal).Decimal
				dd := &DDecimal{}
				dd.SetInt64(int64(l))
				_, err := ExactCtx.Mul(&dd.Decimal, &dd.Decimal, r)
				return dd, err
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Int,
			RightType:  types.Interval,
			ReturnType: types.Interval,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				return &DInterval{Duration: right.(*DInterval).Duration.Mul(int64(MustBeDInt(left)))}, nil
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Interval,
			RightType:  types.Int,
			ReturnType: types.Interval,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				return &DInterval{Duration: left.(*DInterval).Duration.Mul(int64(MustBeDInt(right)))}, nil
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Interval,
			RightType:  types.Float,
			ReturnType: types.Interval,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				r := float64(*right.(*DFloat))
				return &DInterval{Duration: left.(*DInterval).Duration.MulFloat(r)}, nil
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Float,
			RightType:  types.Interval,
			ReturnType: types.Interval,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				l := float64(*left.(*DFloat))
				return &DInterval{Duration: right.(*DInterval).Duration.MulFloat(l)}, nil
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Decimal,
			RightType:  types.Interval,
			ReturnType: types.Interval,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				l := &left.(*DDecimal).Decimal
				t, err := l.Float64()
				if err != nil {
					return nil, err
				}
				return &DInterval{Duration: right.(*DInterval).Duration.MulFloat(t)}, nil
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Interval,
			RightType:  types.Decimal,
			ReturnType: types.Interval,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				r := &right.(*DDecimal).Decimal
				t, err := r.Float64()
				if err != nil {
					return nil, err
				}
				return &DInterval{Duration: left.(*DInterval).Duration.MulFloat(t)}, nil
			},
			Volatility: VolatilityImmutable,
		},
	},

	treebin.Div: {
		&BinOp{
			LeftType:   types.Int,
			RightType:  types.Int,
			ReturnType: types.Decimal,
			Fn: func(ctx *EvalContext, left Datum, right Datum) (Datum, error) {
				rInt := MustBeDInt(right)
				if rInt == 0 {
					return nil, ErrDivByZero
				}
				var div apd.Decimal
				div.SetInt64(int64(rInt))
				dd := &DDecimal{}
				dd.SetInt64(int64(MustBeDInt(left)))
				_, err := DecimalCtx.Quo(&dd.Decimal, &dd.Decimal, &div)
				return dd, err
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Float,
			RightType:  types.Float,
			ReturnType: types.Float,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				r := *right.(*DFloat)
				if r == 0.0 {
					return nil, ErrDivByZero
				}
				return NewDFloat(*left.(*DFloat) / r), nil
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Decimal,
			RightType:  types.Decimal,
			ReturnType: types.Decimal,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				l := &left.(*DDecimal).Decimal
				r := &right.(*DDecimal).Decimal
				if r.IsZero() {
					return nil, ErrDivByZero
				}
				dd := &DDecimal{}
				_, err := DecimalCtx.Quo(&dd.Decimal, l, r)
				return dd, err
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Decimal,
			RightType:  types.Int,
			ReturnType: types.Decimal,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				l := &left.(*DDecimal).Decimal
				r := MustBeDInt(right)
				if r == 0 {
					return nil, ErrDivByZero
				}
				dd := &DDecimal{}
				dd.SetInt64(int64(r))
				_, err := DecimalCtx.Quo(&dd.Decimal, l, &dd.Decimal)
				return dd, err
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Int,
			RightType:  types.Decimal,
			ReturnType: types.Decimal,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				l := MustBeDInt(left)
				r := &right.(*DDecimal).Decimal
				if r.IsZero() {
					return nil, ErrDivByZero
				}
				dd := &DDecimal{}
				dd.SetInt64(int64(l))
				_, err := DecimalCtx.Quo(&dd.Decimal, &dd.Decimal, r)
				return dd, err
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Interval,
			RightType:  types.Int,
			ReturnType: types.Interval,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				rInt := MustBeDInt(right)
				if rInt == 0 {
					return nil, ErrDivByZero
				}
				return &DInterval{Duration: left.(*DInterval).Duration.Div(int64(rInt))}, nil
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Interval,
			RightType:  types.Float,
			ReturnType: types.Interval,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				r := float64(*right.(*DFloat))
				if r == 0.0 {
					return nil, ErrDivByZero
				}
				return &DInterval{Duration: left.(*DInterval).Duration.DivFloat(r)}, nil
			},
			Volatility: VolatilityImmutable,
		},
	},

	treebin.FloorDiv: {
		&BinOp{
			LeftType:   types.Int,
			RightType:  types.Int,
			ReturnType: types.Int,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				rInt := MustBeDInt(right)
				if rInt == 0 {
					return nil, ErrDivByZero
				}
				return NewDInt(MustBeDInt(left) / rInt), nil
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Float,
			RightType:  types.Float,
			ReturnType: types.Float,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				l := float64(*left.(*DFloat))
				r := float64(*right.(*DFloat))
				if r == 0.0 {
					return nil, ErrDivByZero
				}
				return NewDFloat(DFloat(math.Trunc(l / r))), nil
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Decimal,
			RightType:  types.Decimal,
			ReturnType: types.Decimal,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				l := &left.(*DDecimal).Decimal
				r := &right.(*DDecimal).Decimal
				if r.IsZero() {
					return nil, ErrDivByZero
				}
				dd := &DDecimal{}
				_, err := HighPrecisionCtx.QuoInteger(&dd.Decimal, l, r)
				return dd, err
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Decimal,
			RightType:  types.Int,
			ReturnType: types.Decimal,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				l := &left.(*DDecimal).Decimal
				r := MustBeDInt(right)
				if r == 0 {
					return nil, ErrDivByZero
				}
				dd := &DDecimal{}
				dd.SetInt64(int64(r))
				_, err := HighPrecisionCtx.QuoInteger(&dd.Decimal, l, &dd.Decimal)
				return dd, err
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Int,
			RightType:  types.Decimal,
			ReturnType: types.Decimal,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				l := MustBeDInt(left)
				r := &right.(*DDecimal).Decimal
				if r.IsZero() {
					return nil, ErrDivByZero
				}
				dd := &DDecimal{}
				dd.SetInt64(int64(l))
				_, err := HighPrecisionCtx.QuoInteger(&dd.Decimal, &dd.Decimal, r)
				return dd, err
			},
			Volatility: VolatilityImmutable,
		},
	},

	treebin.Mod: {
		&BinOp{
			LeftType:   types.Int,
			RightType:  types.Int,
			ReturnType: types.Int,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				r := MustBeDInt(right)
				if r == 0 {
					return nil, ErrDivByZero
				}
				return NewDInt(MustBeDInt(left) % r), nil
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Float,
			RightType:  types.Float,
			ReturnType: types.Float,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				l := float64(*left.(*DFloat))
				r := float64(*right.(*DFloat))
				if r == 0.0 {
					return nil, ErrDivByZero
				}
				return NewDFloat(DFloat(math.Mod(l, r))), nil
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Decimal,
			RightType:  types.Decimal,
			ReturnType: types.Decimal,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				l := &left.(*DDecimal).Decimal
				r := &right.(*DDecimal).Decimal
				if r.IsZero() {
					return nil, ErrDivByZero
				}
				dd := &DDecimal{}
				_, err := HighPrecisionCtx.Rem(&dd.Decimal, l, r)
				return dd, err
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Decimal,
			RightType:  types.Int,
			ReturnType: types.Decimal,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				l := &left.(*DDecimal).Decimal
				r := MustBeDInt(right)
				if r == 0 {
					return nil, ErrDivByZero
				}
				dd := &DDecimal{}
				dd.SetInt64(int64(r))
				_, err := HighPrecisionCtx.Rem(&dd.Decimal, l, &dd.Decimal)
				return dd, err
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Int,
			RightType:  types.Decimal,
			ReturnType: types.Decimal,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				l := MustBeDInt(left)
				r := &right.(*DDecimal).Decimal
				if r.IsZero() {
					return nil, ErrDivByZero
				}
				dd := &DDecimal{}
				dd.SetInt64(int64(l))
				_, err := HighPrecisionCtx.Rem(&dd.Decimal, &dd.Decimal, r)
				return dd, err
			},
			Volatility: VolatilityImmutable,
		},
	},

	treebin.Concat: {
		&BinOp{
			LeftType:   types.String,
			RightType:  types.String,
			ReturnType: types.String,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				return NewDString(string(MustBeDString(left) + MustBeDString(right))), nil
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Bytes,
			RightType:  types.Bytes,
			ReturnType: types.Bytes,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				return NewDBytes(*left.(*DBytes) + *right.(*DBytes)), nil
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.VarBit,
			RightType:  types.VarBit,
			ReturnType: types.VarBit,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				lhs := MustBeDBitArray(left)
				rhs := MustBeDBitArray(right)
				return &DBitArray{
					BitArray: bitarray.Concat(lhs.BitArray, rhs.BitArray),
				}, nil
			},
			Volatility: VolatilityImmutable,
		},
	},

	treebin.LShift: {
		&BinOp{
			LeftType:   types.Int,
			RightType:  types.Int,
			ReturnType: types.Int,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				rval := MustBeDInt(right)
				if rval < 0 || rval >= 64 {
					return nil, ErrShiftArgOutOfRange
				}
				return NewDInt(MustBeDInt(left) << uint(rval)), nil
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.VarBit,
			RightType:  types.Int,
			ReturnType: types.VarBit,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				lhs := MustBeDBitArray(left)
				rhs := MustBeDInt(right)
				return &DBitArray{
					BitArray: lhs.BitArray.LeftShiftAny(int64(rhs)),
				}, nil
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.INet,
			RightType:  types.INet,
			ReturnType: types.Bool,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				ipAddr := MustBeDIPAddr(left).IPAddr
				other := MustBeDIPAddr(right).IPAddr
				return MakeDBool(DBool(ipAddr.ContainedBy(&other))), nil
			},
			Volatility: VolatilityImmutable,
		},
	},

	treebin.RShift: {
		&BinOp{
			LeftType:   types.Int,
			RightType:  types.Int,
			ReturnType: types.Int,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				rval := MustBeDInt(right)
				if rval < 0 || rval >= 64 {
					return nil, ErrShiftArgOutOfRange
				}
				return NewDInt(MustBeDInt(left) >> uint(rval)), nil
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.VarBit,
			RightType:  types.Int,
			ReturnType: types.VarBit,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				lhs := MustBeDBitArray(left)
				rhs := MustBeDInt(right)
				return &DBitArray{
					BitArray: lhs.BitArray.LeftShiftAny(-int64(rhs)),
				}, nil
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.INet,
			RightType:  types.INet,
			ReturnType: types.Bool,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				ipAddr := MustBeDIPAddr(left).IPAddr
				other := MustBeDIPAddr(right).IPAddr
				return MakeDBool(DBool(ipAddr.Contains(&other))), nil
			},
			Volatility: VolatilityImmutable,
		},
	},

	treebin.Pow: {
		&BinOp{
			LeftType:   types.Int,
			RightType:  types.Int,
			ReturnType: types.Int,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				return IntPow(MustBeDInt(left), MustBeDInt(right))
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Float,
			RightType:  types.Float,
			ReturnType: types.Float,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				f := math.Pow(float64(*left.(*DFloat)), float64(*right.(*DFloat)))
				return NewDFloat(DFloat(f)), nil
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Decimal,
			RightType:  types.Decimal,
			ReturnType: types.Decimal,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				l := &left.(*DDecimal).Decimal
				r := &right.(*DDecimal).Decimal
				dd := &DDecimal{}
				_, err := DecimalCtx.Pow(&dd.Decimal, l, r)
				return dd, err
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Decimal,
			RightType:  types.Int,
			ReturnType: types.Decimal,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				l := &left.(*DDecimal).Decimal
				r := MustBeDInt(right)
				dd := &DDecimal{}
				dd.SetInt64(int64(r))
				_, err := DecimalCtx.Pow(&dd.Decimal, l, &dd.Decimal)
				return dd, err
			},
			Volatility: VolatilityImmutable,
		},
		&BinOp{
			LeftType:   types.Int,
			RightType:  types.Decimal,
			ReturnType: types.Decimal,
			Fn: func(_ *EvalContext, left Datum, right Datum) (Datum, error) {
				l := MustBeDInt(left)
				r := &right.(*DDecimal).Decimal
				dd := &DDecimal{}
				dd.SetInt64(int64(l))
				_, err := DecimalCtx.Pow(&dd.Decimal, &dd.Decimal, r)
				return dd, err
			},
			Volatility: VolatilityImmutable,
		},
	},
}

BinOps contains the binary operations indexed by operation type.

View Source 
var CmpOps = cmpOpFixups(map[treecmp.ComparisonOperatorSymbol]cmpOpOverload{
	treecmp.EQ: {

		makeEqFn(types.AnyEnum, types.AnyEnum, VolatilityImmutable),
		makeEqFn(types.Bool, types.Bool, VolatilityLeakProof),
		makeEqFn(types.Bytes, types.Bytes, VolatilityLeakProof),
		makeEqFn(types.Date, types.Date, VolatilityLeakProof),
		makeEqFn(types.Decimal, types.Decimal, VolatilityImmutable),

		makeEqFn(types.AnyCollatedString, types.AnyCollatedString, VolatilityLeakProof),
		makeEqFn(types.Float, types.Float, VolatilityLeakProof),
		makeEqFn(types.Box2D, types.Box2D, VolatilityLeakProof),
		makeEqFn(types.Geography, types.Geography, VolatilityLeakProof),
		makeEqFn(types.Geometry, types.Geometry, VolatilityLeakProof),
		makeEqFn(types.INet, types.INet, VolatilityLeakProof),
		makeEqFn(types.Int, types.Int, VolatilityLeakProof),
		makeEqFn(types.Interval, types.Interval, VolatilityLeakProof),
		makeEqFn(types.Jsonb, types.Jsonb, VolatilityImmutable),
		makeEqFn(types.Oid, types.Oid, VolatilityLeakProof),
		makeEqFn(types.String, types.String, VolatilityLeakProof),
		makeEqFn(types.Time, types.Time, VolatilityLeakProof),
		makeEqFn(types.TimeTZ, types.TimeTZ, VolatilityLeakProof),
		makeEqFn(types.Timestamp, types.Timestamp, VolatilityLeakProof),
		makeEqFn(types.TimestampTZ, types.TimestampTZ, VolatilityLeakProof),
		makeEqFn(types.Uuid, types.Uuid, VolatilityLeakProof),
		makeEqFn(types.VarBit, types.VarBit, VolatilityLeakProof),

		makeEqFn(types.Date, types.Timestamp, VolatilityImmutable),
		makeEqFn(types.Date, types.TimestampTZ, VolatilityStable),
		makeEqFn(types.Decimal, types.Float, VolatilityLeakProof),
		makeEqFn(types.Decimal, types.Int, VolatilityLeakProof),
		makeEqFn(types.Float, types.Decimal, VolatilityLeakProof),
		makeEqFn(types.Float, types.Int, VolatilityLeakProof),
		makeEqFn(types.Int, types.Decimal, VolatilityLeakProof),
		makeEqFn(types.Int, types.Float, VolatilityLeakProof),
		makeEqFn(types.Int, types.Oid, VolatilityLeakProof),
		makeEqFn(types.Oid, types.Int, VolatilityLeakProof),
		makeEqFn(types.Timestamp, types.Date, VolatilityImmutable),
		makeEqFn(types.Timestamp, types.TimestampTZ, VolatilityStable),
		makeEqFn(types.TimestampTZ, types.Date, VolatilityStable),
		makeEqFn(types.TimestampTZ, types.Timestamp, VolatilityStable),
		makeEqFn(types.Time, types.TimeTZ, VolatilityStable),
		makeEqFn(types.TimeTZ, types.Time, VolatilityStable),

		&CmpOp{
			LeftType:  types.AnyTuple,
			RightType: types.AnyTuple,
			Fn: func(ctx *EvalContext, left Datum, right Datum) (Datum, error) {
				return cmpOpTupleFn(ctx, *left.(*DTuple), *right.(*DTuple), treecmp.MakeComparisonOperator(treecmp.EQ)), nil
			},
			Volatility: VolatilityImmutable,
		},
	},

	treecmp.LT: {

		makeLtFn(types.AnyEnum, types.AnyEnum, VolatilityImmutable),
		makeLtFn(types.Bool, types.Bool, VolatilityLeakProof),
		makeLtFn(types.Bytes, types.Bytes, VolatilityLeakProof),
		makeLtFn(types.Date, types.Date, VolatilityLeakProof),
		makeLtFn(types.Decimal, types.Decimal, VolatilityImmutable),

		makeLtFn(types.AnyCollatedString, types.AnyCollatedString, VolatilityLeakProof),
		makeLtFn(types.Float, types.Float, VolatilityLeakProof),
		makeLtFn(types.Box2D, types.Box2D, VolatilityLeakProof),
		makeLtFn(types.Geography, types.Geography, VolatilityLeakProof),
		makeLtFn(types.Geometry, types.Geometry, VolatilityLeakProof),
		makeLtFn(types.INet, types.INet, VolatilityLeakProof),
		makeLtFn(types.Int, types.Int, VolatilityLeakProof),
		makeLtFn(types.Interval, types.Interval, VolatilityLeakProof),
		makeLtFn(types.Oid, types.Oid, VolatilityLeakProof),
		makeLtFn(types.String, types.String, VolatilityLeakProof),
		makeLtFn(types.Time, types.Time, VolatilityLeakProof),
		makeLtFn(types.TimeTZ, types.TimeTZ, VolatilityLeakProof),
		makeLtFn(types.Timestamp, types.Timestamp, VolatilityLeakProof),
		makeLtFn(types.TimestampTZ, types.TimestampTZ, VolatilityLeakProof),
		makeLtFn(types.Uuid, types.Uuid, VolatilityLeakProof),
		makeLtFn(types.VarBit, types.VarBit, VolatilityLeakProof),

		makeLtFn(types.Date, types.Timestamp, VolatilityImmutable),
		makeLtFn(types.Date, types.TimestampTZ, VolatilityStable),
		makeLtFn(types.Decimal, types.Float, VolatilityLeakProof),
		makeLtFn(types.Decimal, types.Int, VolatilityLeakProof),
		makeLtFn(types.Float, types.Decimal, VolatilityLeakProof),
		makeLtFn(types.Float, types.Int, VolatilityLeakProof),
		makeLtFn(types.Int, types.Decimal, VolatilityLeakProof),
		makeLtFn(types.Int, types.Float, VolatilityLeakProof),
		makeLtFn(types.Int, types.Oid, VolatilityLeakProof),
		makeLtFn(types.Oid, types.Int, VolatilityLeakProof),
		makeLtFn(types.Timestamp, types.Date, VolatilityImmutable),
		makeLtFn(types.Timestamp, types.TimestampTZ, VolatilityStable),
		makeLtFn(types.TimestampTZ, types.Date, VolatilityStable),
		makeLtFn(types.TimestampTZ, types.Timestamp, VolatilityStable),
		makeLtFn(types.Time, types.TimeTZ, VolatilityStable),
		makeLtFn(types.TimeTZ, types.Time, VolatilityStable),

		&CmpOp{
			LeftType:  types.AnyTuple,
			RightType: types.AnyTuple,
			Fn: func(ctx *EvalContext, left Datum, right Datum) (Datum, error) {
				return cmpOpTupleFn(ctx, *left.(*DTuple), *right.(*DTuple), treecmp.MakeComparisonOperator(treecmp.LT)), nil
			},
			Volatility: VolatilityImmutable,
		},
	},

	treecmp.LE: {

		makeLeFn(types.AnyEnum, types.AnyEnum, VolatilityImmutable),
		makeLeFn(types.Bool, types.Bool, VolatilityLeakProof),
		makeLeFn(types.Bytes, types.Bytes, VolatilityLeakProof),
		makeLeFn(types.Date, types.Date, VolatilityLeakProof),
		makeLeFn(types.Decimal, types.Decimal, VolatilityImmutable),

		makeLeFn(types.AnyCollatedString, types.AnyCollatedString, VolatilityLeakProof),
		makeLeFn(types.Float, types.Float, VolatilityLeakProof),
		makeLeFn(types.Box2D, types.Box2D, VolatilityLeakProof),
		makeLeFn(types.Geography, types.Geography, VolatilityLeakProof),
		makeLeFn(types.Geometry, types.Geometry, VolatilityLeakProof),
		makeLeFn(types.INet, types.INet, VolatilityLeakProof),
		makeLeFn(types.Int, types.Int, VolatilityLeakProof),
		makeLeFn(types.Interval, types.Interval, VolatilityLeakProof),
		makeLeFn(types.Oid, types.Oid, VolatilityLeakProof),
		makeLeFn(types.String, types.String, VolatilityLeakProof),
		makeLeFn(types.Time, types.Time, VolatilityLeakProof),
		makeLeFn(types.TimeTZ, types.TimeTZ, VolatilityLeakProof),
		makeLeFn(types.Timestamp, types.Timestamp, VolatilityLeakProof),
		makeLeFn(types.TimestampTZ, types.TimestampTZ, VolatilityLeakProof),
		makeLeFn(types.Uuid, types.Uuid, VolatilityLeakProof),
		makeLeFn(types.VarBit, types.VarBit, VolatilityLeakProof),

		makeLeFn(types.Date, types.Timestamp, VolatilityImmutable),
		makeLeFn(types.Date, types.TimestampTZ, VolatilityStable),
		makeLeFn(types.Decimal, types.Float, VolatilityLeakProof),
		makeLeFn(types.Decimal, types.Int, VolatilityLeakProof),
		makeLeFn(types.Float, types.Decimal, VolatilityLeakProof),
		makeLeFn(types.Float, types.Int, VolatilityLeakProof),
		makeLeFn(types.Int, types.Decimal, VolatilityLeakProof),
		makeLeFn(types.Int, types.Float, VolatilityLeakProof),
		makeLeFn(types.Int, types.Oid, VolatilityLeakProof),
		makeLeFn(types.Oid, types.Int, VolatilityLeakProof),
		makeLeFn(types.Timestamp, types.Date, VolatilityImmutable),
		makeLeFn(types.Timestamp, types.TimestampTZ, VolatilityStable),
		makeLeFn(types.TimestampTZ, types.Date, VolatilityStable),
		makeLeFn(types.TimestampTZ, types.Timestamp, VolatilityStable),
		makeLeFn(types.Time, types.TimeTZ, VolatilityStable),
		makeLeFn(types.TimeTZ, types.Time, VolatilityStable),

		&CmpOp{
			LeftType:  types.AnyTuple,
			RightType: types.AnyTuple,
			Fn: func(ctx *EvalContext, left Datum, right Datum) (Datum, error) {
				return cmpOpTupleFn(ctx, *left.(*DTuple), *right.(*DTuple), treecmp.MakeComparisonOperator(treecmp.LE)), nil
			},
			Volatility: VolatilityImmutable,
		},
	},

	treecmp.IsNotDistinctFrom: {
		&CmpOp{
			LeftType:     types.Unknown,
			RightType:    types.Unknown,
			Fn:           cmpOpScalarIsFn,
			NullableArgs: true,

			PreferredOverload: true,
			Volatility:        VolatilityLeakProof,
		},
		&CmpOp{
			LeftType:     types.AnyArray,
			RightType:    types.Unknown,
			Fn:           cmpOpScalarIsFn,
			NullableArgs: true,
			Volatility:   VolatilityLeakProof,
		},

		makeIsFn(types.AnyEnum, types.AnyEnum, VolatilityImmutable),
		makeIsFn(types.Bool, types.Bool, VolatilityLeakProof),
		makeIsFn(types.Bytes, types.Bytes, VolatilityLeakProof),
		makeIsFn(types.Date, types.Date, VolatilityLeakProof),
		makeIsFn(types.Decimal, types.Decimal, VolatilityImmutable),

		makeIsFn(types.AnyCollatedString, types.AnyCollatedString, VolatilityLeakProof),
		makeIsFn(types.Float, types.Float, VolatilityLeakProof),
		makeIsFn(types.Box2D, types.Box2D, VolatilityLeakProof),
		makeIsFn(types.Geography, types.Geography, VolatilityLeakProof),
		makeIsFn(types.Geometry, types.Geometry, VolatilityLeakProof),
		makeIsFn(types.INet, types.INet, VolatilityLeakProof),
		makeIsFn(types.Int, types.Int, VolatilityLeakProof),
		makeIsFn(types.Interval, types.Interval, VolatilityLeakProof),
		makeIsFn(types.Jsonb, types.Jsonb, VolatilityImmutable),
		makeIsFn(types.Oid, types.Oid, VolatilityLeakProof),
		makeIsFn(types.String, types.String, VolatilityLeakProof),
		makeIsFn(types.Time, types.Time, VolatilityLeakProof),
		makeIsFn(types.TimeTZ, types.TimeTZ, VolatilityLeakProof),
		makeIsFn(types.Timestamp, types.Timestamp, VolatilityLeakProof),
		makeIsFn(types.TimestampTZ, types.TimestampTZ, VolatilityLeakProof),
		makeIsFn(types.Uuid, types.Uuid, VolatilityLeakProof),
		makeIsFn(types.VarBit, types.VarBit, VolatilityLeakProof),

		makeIsFn(types.Date, types.Timestamp, VolatilityImmutable),
		makeIsFn(types.Date, types.TimestampTZ, VolatilityStable),
		makeIsFn(types.Decimal, types.Float, VolatilityLeakProof),
		makeIsFn(types.Decimal, types.Int, VolatilityLeakProof),
		makeIsFn(types.Float, types.Decimal, VolatilityLeakProof),
		makeIsFn(types.Float, types.Int, VolatilityLeakProof),
		makeIsFn(types.Int, types.Decimal, VolatilityLeakProof),
		makeIsFn(types.Int, types.Float, VolatilityLeakProof),
		makeIsFn(types.Int, types.Oid, VolatilityLeakProof),
		makeIsFn(types.Oid, types.Int, VolatilityLeakProof),
		makeIsFn(types.Timestamp, types.Date, VolatilityImmutable),
		makeIsFn(types.Timestamp, types.TimestampTZ, VolatilityStable),
		makeIsFn(types.TimestampTZ, types.Date, VolatilityStable),
		makeIsFn(types.TimestampTZ, types.Timestamp, VolatilityStable),
		makeIsFn(types.Time, types.TimeTZ, VolatilityStable),
		makeIsFn(types.TimeTZ, types.Time, VolatilityStable),

		&CmpOp{
			LeftType:     types.AnyTuple,
			RightType:    types.AnyTuple,
			NullableArgs: true,
			Fn: func(ctx *EvalContext, left Datum, right Datum) (Datum, error) {
				if left == DNull || right == DNull {
					return MakeDBool(left == DNull && right == DNull), nil
				}
				return cmpOpTupleFn(ctx, *left.(*DTuple), *right.(*DTuple), treecmp.MakeComparisonOperator(treecmp.IsNotDistinctFrom)), nil
			},
			Volatility: VolatilityImmutable,
		},
	},

	treecmp.In: {
		makeEvalTupleIn(types.AnyEnum, VolatilityLeakProof),
		makeEvalTupleIn(types.Bool, VolatilityLeakProof),
		makeEvalTupleIn(types.Bytes, VolatilityLeakProof),
		makeEvalTupleIn(types.Date, VolatilityLeakProof),
		makeEvalTupleIn(types.Decimal, VolatilityLeakProof),
		makeEvalTupleIn(types.AnyCollatedString, VolatilityLeakProof),
		makeEvalTupleIn(types.AnyTuple, VolatilityLeakProof),
		makeEvalTupleIn(types.Float, VolatilityLeakProof),
		makeEvalTupleIn(types.Box2D, VolatilityLeakProof),
		makeEvalTupleIn(types.Geography, VolatilityLeakProof),
		makeEvalTupleIn(types.Geometry, VolatilityLeakProof),
		makeEvalTupleIn(types.INet, VolatilityLeakProof),
		makeEvalTupleIn(types.Int, VolatilityLeakProof),
		makeEvalTupleIn(types.Interval, VolatilityLeakProof),
		makeEvalTupleIn(types.Jsonb, VolatilityLeakProof),
		makeEvalTupleIn(types.Oid, VolatilityLeakProof),
		makeEvalTupleIn(types.String, VolatilityLeakProof),
		makeEvalTupleIn(types.Time, VolatilityLeakProof),
		makeEvalTupleIn(types.TimeTZ, VolatilityLeakProof),
		makeEvalTupleIn(types.Timestamp, VolatilityLeakProof),
		makeEvalTupleIn(types.TimestampTZ, VolatilityLeakProof),
		makeEvalTupleIn(types.Uuid, VolatilityLeakProof),
		makeEvalTupleIn(types.VarBit, VolatilityLeakProof),
	},

	treecmp.Like: {
		&CmpOp{
			LeftType:  types.String,
			RightType: types.String,
			Fn: func(ctx *EvalContext, left Datum, right Datum) (Datum, error) {
				return matchLike(ctx, left, right, false)
			},
			Volatility: VolatilityLeakProof,
		},
	},

	treecmp.ILike: {
		&CmpOp{
			LeftType:  types.String,
			RightType: types.String,
			Fn: func(ctx *EvalContext, left Datum, right Datum) (Datum, error) {
				return matchLike(ctx, left, right, true)
			},
			Volatility: VolatilityLeakProof,
		},
	},

	treecmp.SimilarTo: {
		&CmpOp{
			LeftType:  types.String,
			RightType: types.String,
			Fn: func(ctx *EvalContext, left Datum, right Datum) (Datum, error) {
				key := similarToKey{s: string(MustBeDString(right)), escape: '\\'}
				return matchRegexpWithKey(ctx, left, key)
			},
			Volatility: VolatilityLeakProof,
		},
	},

	treecmp.RegMatch: append(
		cmpOpOverload{
			&CmpOp{
				LeftType:  types.String,
				RightType: types.String,
				Fn: func(ctx *EvalContext, left Datum, right Datum) (Datum, error) {
					key := regexpKey{s: string(MustBeDString(right)), caseInsensitive: false}
					return matchRegexpWithKey(ctx, left, key)
				},
				Volatility: VolatilityImmutable,
			},
		},
	),

	treecmp.RegIMatch: {
		&CmpOp{
			LeftType:  types.String,
			RightType: types.String,
			Fn: func(ctx *EvalContext, left Datum, right Datum) (Datum, error) {
				key := regexpKey{s: string(MustBeDString(right)), caseInsensitive: true}
				return matchRegexpWithKey(ctx, left, key)
			},
			Volatility: VolatilityImmutable,
		},
	},

	treecmp.Overlaps: append(
		cmpOpOverload{
			&CmpOp{
				LeftType:  types.AnyArray,
				RightType: types.AnyArray,
				Fn: func(ctx *EvalContext, left Datum, right Datum) (Datum, error) {
					array := MustBeDArray(left)
					other := MustBeDArray(right)
					if !array.ParamTyp.Equivalent(other.ParamTyp) {
						return nil, pgerror.New(pgcode.DatatypeMismatch, "cannot compare arrays with different element types")
					}
					for _, needle := range array.Array {

						if needle == DNull {
							continue
						}
						for _, hay := range other.Array {
							if needle.Compare(ctx, hay) == 0 {
								return DBoolTrue, nil
							}
						}
					}
					return DBoolFalse, nil
				},
				Volatility: VolatilityImmutable,
			},
			&CmpOp{
				LeftType:  types.INet,
				RightType: types.INet,
				Fn: func(_ *EvalContext, left, right Datum) (Datum, error) {
					ipAddr := MustBeDIPAddr(left).IPAddr
					other := MustBeDIPAddr(right).IPAddr
					return MakeDBool(DBool(ipAddr.ContainsOrContainedBy(&other))), nil
				},
				Volatility: VolatilityImmutable,
			},
		},
	),
})

CmpOps contains the comparison operations indexed by operation type.

View Source 
var DMaxIPAddr = NewDIPAddr(DIPAddr{ipaddr.IPAddr{Family: ipaddr.IPv6family, Addr: dIPv6max, Mask: 128}})

DMaxIPAddr is the max DIPaddr.

View Source 
var DMaxUUID = NewDUuid(DUuid{uuid.UUID{0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
	0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}})

DMaxUUID is the max UUID.

View Source 
var DMinIPAddr = NewDIPAddr(DIPAddr{ipaddr.IPAddr{Family: ipaddr.IPv4family, Addr: dIPv4min, Mask: 0}})

DMinIPAddr is the min DIPAddr.

View Source 
var DMinUUID = NewDUuid(DUuid{uuid.UUID{}})

DMinUUID is the min UUID.

View Source 
var DVoidDatum = &DVoid{}

DVoidDatum is an instance of the DVoid datum.

View Source 
var (

	// ErrAsOfSpecifiedWithReadWrite is returned when a statement attempts to set
	// a historical query to READ WRITE which conflicts with its implied READ ONLY
	// mode.
	ErrAsOfSpecifiedWithReadWrite = pgerror.New(pgcode.Syntax, "AS OF SYSTEM TIME specified with READ WRITE mode")
)
View Source 
var FunDefs map[string]*FunctionDefinition

FunDefs holds pre-allocated FunctionDefinition instances for every builtin function. Initialized by builtins.init().

View Source 
var IsolationLevelMap = map[string]IsolationLevel{
	"serializable": SerializableIsolation,
}

IsolationLevelMap is a map from string isolation level name to isolation level, in the lowercase format that set isolation_level supports.

View Source 
var JobCommandToStatement = map[JobCommand]string{
	PauseJob:  "PAUSE",
	CancelJob: "CANCEL",
	ResumeJob: "RESUME",
}

JobCommandToStatement translates a job command integer to a statement prefix.

View Source 
var OidToBuiltinName map[oid.Oid]string

OidToBuiltinName contains a map from the hashed OID of all builtin functions to their name. We populate this from the pg_catalog.go file in the sql package because of dependency issues: we can't use oidHasher from this file.

View Source 
var ReturningNothingClause = &ReturningNothing{}

ReturningNothingClause is a shared instance to avoid unnecessary allocations.

View Source 
var ShowLastQueryStatisticsDefaultColumns = NameList([]Name{
	"parse_latency",
	"plan_latency",
	"exec_latency",
	"service_latency",
	"post_commit_jobs_latency",
})

ShowLastQueryStatisticsDefaultColumns is the default list of columns when the USING clause is not specified. Note: the form that does not specify the USING clause is deprecated. Remove it when there are no more clients using it (22.1 or later).

View Source 
var UnaryOps = unaryOpFixups(map[UnaryOperatorSymbol]unaryOpOverload{
	UnaryPlus: {
		&UnaryOp{
			Typ:        types.Int,
			ReturnType: types.Int,
			Fn: func(_ *EvalContext, d Datum) (Datum, error) {
				return d, nil
			},
			Volatility: VolatilityImmutable,
		},
		&UnaryOp{
			Typ:        types.Float,
			ReturnType: types.Float,
			Fn: func(_ *EvalContext, d Datum) (Datum, error) {
				return d, nil
			},
			Volatility: VolatilityImmutable,
		},
		&UnaryOp{
			Typ:        types.Decimal,
			ReturnType: types.Decimal,
			Fn: func(_ *EvalContext, d Datum) (Datum, error) {
				return d, nil
			},
			Volatility: VolatilityImmutable,
		},
		&UnaryOp{
			Typ:        types.Interval,
			ReturnType: types.Interval,
			Fn: func(_ *EvalContext, d Datum) (Datum, error) {
				return d, nil
			},
			Volatility: VolatilityImmutable,
		},
	},

	UnaryMinus: {
		&UnaryOp{
			Typ:        types.Int,
			ReturnType: types.Int,
			Fn: func(_ *EvalContext, d Datum) (Datum, error) {
				i := MustBeDInt(d)
				if i == math.MinInt64 {
					return nil, ErrIntOutOfRange
				}
				return NewDInt(-i), nil
			},
			Volatility: VolatilityImmutable,
		},
		&UnaryOp{
			Typ:        types.Float,
			ReturnType: types.Float,
			Fn: func(_ *EvalContext, d Datum) (Datum, error) {
				return NewDFloat(-*d.(*DFloat)), nil
			},
			Volatility: VolatilityImmutable,
		},
		&UnaryOp{
			Typ:        types.Decimal,
			ReturnType: types.Decimal,
			Fn: func(_ *EvalContext, d Datum) (Datum, error) {
				dec := &d.(*DDecimal).Decimal
				dd := &DDecimal{}
				dd.Decimal.Neg(dec)
				return dd, nil
			},
			Volatility: VolatilityImmutable,
		},
		&UnaryOp{
			Typ:        types.Interval,
			ReturnType: types.Interval,
			Fn: func(_ *EvalContext, d Datum) (Datum, error) {
				i := d.(*DInterval).Duration
				i.SetNanos(-i.Nanos())
				i.Days = -i.Days
				i.Months = -i.Months
				return &DInterval{Duration: i}, nil
			},
			Volatility: VolatilityImmutable,
		},
	},

	UnaryComplement: {
		&UnaryOp{
			Typ:        types.Int,
			ReturnType: types.Int,
			Fn: func(_ *EvalContext, d Datum) (Datum, error) {
				return NewDInt(^MustBeDInt(d)), nil
			},
			Volatility: VolatilityImmutable,
		},
		&UnaryOp{
			Typ:        types.VarBit,
			ReturnType: types.VarBit,
			Fn: func(_ *EvalContext, d Datum) (Datum, error) {
				p := MustBeDBitArray(d)
				return &DBitArray{BitArray: bitarray.Not(p.BitArray)}, nil
			},
			Volatility: VolatilityImmutable,
		},
		&UnaryOp{
			Typ:        types.INet,
			ReturnType: types.INet,
			Fn: func(_ *EvalContext, d Datum) (Datum, error) {
				ipAddr := MustBeDIPAddr(d).IPAddr
				return NewDIPAddr(DIPAddr{ipAddr.Complement()}), nil
			},
			Volatility: VolatilityImmutable,
		},
	},

	UnarySqrt: {
		&UnaryOp{
			Typ:        types.Float,
			ReturnType: types.Float,
			Fn: func(_ *EvalContext, d Datum) (Datum, error) {
				return Sqrt(float64(*d.(*DFloat)))
			},
			Volatility: VolatilityImmutable,
		},
		&UnaryOp{
			Typ:        types.Decimal,
			ReturnType: types.Decimal,
			Fn: func(_ *EvalContext, d Datum) (Datum, error) {
				dec := &d.(*DDecimal).Decimal
				return DecimalSqrt(dec)
			},
			Volatility: VolatilityImmutable,
		},
	},

	UnaryCbrt: {
		&UnaryOp{
			Typ:        types.Float,
			ReturnType: types.Float,
			Fn: func(_ *EvalContext, d Datum) (Datum, error) {
				return Cbrt(float64(*d.(*DFloat)))
			},
			Volatility: VolatilityImmutable,
		},
		&UnaryOp{
			Typ:        types.Decimal,
			ReturnType: types.Decimal,
			Fn: func(_ *EvalContext, d Datum) (Datum, error) {
				dec := &d.(*DDecimal).Decimal
				return DecimalCbrt(dec)
			},
			Volatility: VolatilityImmutable,
		},
	},
})

UnaryOps contains the unary operations indexed by operation type.

View Source 
var UnknownReturnType *types.T

UnknownReturnType is returned from ReturnTypers when the arguments provided are not sufficient to determine a return type. This is necessary for cases like overload resolution, where the argument types are not resolved yet so the type-level function will be called without argument types. If a ReturnTyper returns unknownReturnType, then the candidate function set cannot be refined. This means that only ReturnTypers that never return unknownReturnType, like those created with FixedReturnType, can help reduce overload ambiguity.

Functions

func AsString 

func AsString(n NodeFormatter) string

AsString pretty prints a node to a string.

func AsStringWithFQNames 

func AsStringWithFQNames(n NodeFormatter, ann *Annotations) string

AsStringWithFQNames pretty prints a node to a string with the FmtAlwaysQualifyTableNames flag (which requires annotations).

func AsStringWithFlags 

func AsStringWithFlags(n NodeFormatter, fl FmtFlags, opts ...FmtCtxOption) string

AsStringWithFlags pretty prints a node to a string given specific flags; only flags that don't require Annotations can be used.

func CanModifySchema 

func CanModifySchema(stmt Statement) bool

CanModifySchema returns true if the statement can modify the database schema.

func CanWriteData 

func CanWriteData(stmt Statement) bool

CanWriteData returns true if the statement can modify data.

func CheckIsWindowOrAgg 

func CheckIsWindowOrAgg(def *FunctionDefinition) error

CheckIsWindowOrAgg returns an error if the function definition is not a window function or an aggregate.

func CmpOpInverse 

func CmpOpInverse(i treecmp.ComparisonOperatorSymbol) (treecmp.ComparisonOperatorSymbol, bool)

CmpOpInverse returns the inverse of the comparison operator if it exists. The second return value is true if it exists, and false otherwise.

func CompareBools 

func CompareBools(d, v bool) int

CompareBools compares the input bools according to the SQL comparison rules.

func CompareDecimals 

func CompareDecimals(d *apd.Decimal, v *apd.Decimal) int

CompareDecimals compares 2 apd.Decimals according to the SQL comparison rules, making sure that NaNs sort first.

func ComputeColNameInternal 

func ComputeColNameInternal(sp sessiondata.SearchPath, target Expr) (int, string, error)

ComputeColNameInternal is the workhorse for GetRenderColName. The return value indicates the strength of the confidence in the result: 0 - no information 1 - second-best name choice 2 - good name choice

The algorithm is borrowed from FigureColnameInternal in PostgreSQL 10, to be found in src/backend/parser/parse_target.c.

func ContainsVars 

func ContainsVars(expr Expr) bool

ContainsVars returns true if the expression contains any variables. (variables = sub-expressions, placeholders, indexed vars, etc.)

func ConvertLikeToRegexp 

func ConvertLikeToRegexp(
	ctx *EvalContext, pattern string, caseInsensitive bool, escape rune,
) (*regexp.Regexp, error)

ConvertLikeToRegexp compiles the specified LIKE pattern as an equivalent regular expression.

func DatumToHLC 

func DatumToHLC(evalCtx *EvalContext, stmtTimestamp time.Time, d Datum) (hlc.Timestamp, error)

DatumToHLC performs the conversion from a Datum to an HLC timestamp.

func DatumTypeSize 

func DatumTypeSize(t *types.T) (size uintptr, isVarlen bool)

DatumTypeSize returns a lower bound on the total size of a Datum of the given type in bytes, including memory that is pointed at (even if shared between Datum instances) but excluding allocation overhead.

The second return value indicates whether data of this type have different sizes.

It holds for every Datum d that d.Size() >= DatumSize(d.ResolvedType())

func DecimalToHLC 

func DecimalToHLC(d *apd.Decimal) (hlc.Timestamp, error)

DecimalToHLC performs the conversion from an inputted DECIMAL datum for an AS OF SYSTEM TIME query to an HLC timestamp.

func ErrNameString 

func ErrNameString(s string) string

ErrNameString escapes an identifier stored a string to a SQL identifier suitable for printing in error messages.

func ErrNameStringP 

func ErrNameStringP(s *string) string

ErrNameStringP escapes an identifier stored a string to a SQL identifier suitable for printing in error messages, avoiding a heap allocation.

func ErrString 

func ErrString(n NodeFormatter) string

ErrString pretty prints a node to a string. Identifiers are not quoted.

func ExprDebugString 

func ExprDebugString(expr Expr) string

ExprDebugString generates a multi-line debug string with one node per line in Go format.

func FoldComparisonExpr 

func FoldComparisonExpr(
	op treecmp.ComparisonOperator, left, right Expr,
) (newOp treecmp.ComparisonOperator, newLeft Expr, newRight Expr, flipped bool, not bool)

FoldComparisonExpr folds a given comparison operation and its expressions into an equivalent operation that will hit in the CmpOps map, returning this new operation, along with potentially flipped operands and "flipped" and "not" flags.

func ForEachCast 

func ForEachCast(fn func(src, tgt oid.Oid))

ForEachCast calls fn for every valid cast from a source type to a target type.

func FormatDate 

func FormatDate(d pgdate.Date, ctx *FmtCtx)

FormatDate writes d into ctx according to the format flags.

func FormatDuration 

func FormatDuration(d duration.Duration, ctx *FmtCtx)

FormatDuration writes d into ctx according to the format flags.

func GetEnumComponentsFromPhysicalRep 

func GetEnumComponentsFromPhysicalRep(typ *types.T, rep []byte) ([]byte, string, error)

GetEnumComponentsFromPhysicalRep returns the physical and logical components for an enum of the requested type. It returns an error if it cannot find a matching physical representation.

func GetParamsAndReturnType 

func GetParamsAndReturnType(impl overloadImpl) (TypeList, ReturnTyper)

GetParamsAndReturnType gets the parameters and return type of an overloadImpl.

func GetRenderColName 

func GetRenderColName(searchPath sessiondata.SearchPath, target SelectExpr) (string, error)

GetRenderColName computes a name for a result column. A name specified with AS takes priority, otherwise a name is derived from the expression.

This function is meant to be used on untransformed syntax trees.

The algorithm is borrowed from FigureColName() in PostgreSQL 10, to be found in src/backend/parser/parse_target.c. We reuse this algorithm to provide names more compatible with PostgreSQL.

func GetStaticallyKnownType 

func GetStaticallyKnownType(ref ResolvableTypeReference) (typ *types.T, ok bool)

GetStaticallyKnownType possibly promotes a ResolvableTypeReference into a *types.T if the reference is a statically known type. It is only safe to access the returned type if ok is true.

func GetTableType 

func GetTableType(isSequence bool, isView bool, isMaterialized bool) string

GetTableType returns a string representing the type of table the command is operating on. It is assumed if the table is not a sequence or a view, then it is a regular table.

func HasReturningClause 

func HasReturningClause(clause ReturningClause) bool

HasReturningClause determines if a ReturningClause is present, given a variant of the ReturningClause interface.

func InferTypes 

func InferTypes(vals []string) []types.Family

InferTypes takes a list of strings produced by ParsePath and returns a slice of datum types inferred from the strings. Type DInt will be used if possible, otherwise DString. For example, a vals slice ["1", "foo"] will give a types slice [Dint, DString].

func IsConst 

func IsConst(evalCtx *EvalContext, expr TypedExpr) bool

IsConst returns whether the expression is constant. A constant expression does not contain variables, as defined by ContainsVars, nor impure functions.

func IsFollowerReadTimestampFunction 

func IsFollowerReadTimestampFunction(asOf AsOfClause, searchPath sessiondata.SearchPath) bool

IsFollowerReadTimestampFunction determines whether the AS OF SYSTEM TIME clause contains a simple invocation of the follower_read_timestamp function.

func IsReferenceSerialType 

func IsReferenceSerialType(ref ResolvableTypeReference) bool

IsReferenceSerialType returns whether the input reference is a known serial type. It should only be used during parsing.

func LikeEscape 

func LikeEscape(pattern string) (string, error)

LikeEscape converts a like pattern to a regexp pattern.

func LimitDecimalWidth 

func LimitDecimalWidth(d *apd.Decimal, precision, scale int) error

LimitDecimalWidth limits d's precision (total number of digits) and scale (number of digits after the decimal point). Note that this any limiting will modify the decimal in-place.

func MakeParseError 

func MakeParseError(s string, typ *types.T, err error) error

MakeParseError returns a parse error using the provided string and type. An optional error can be provided, which will be appended to the end of the error string.

func MaxDistinctCount 

func MaxDistinctCount(evalCtx *EvalContext, first, last Datum) (_ int64, ok bool)

MaxDistinctCount returns the maximum number of distinct values between the given datums (inclusive). This is possible if: 

a. the types of the datums are equivalent and countable, or
b. the datums have the same value (in which case the distinct count is 1).

If neither of these conditions hold, MaxDistinctCount returns ok=false. Additionally, it must be the case that first <= last, otherwise MaxDistinctCount returns ok=false.

func MockNameTypes 

func MockNameTypes(types map[string]*types.T) func()

MockNameTypes populates presetTypesForTesting for a test.

func MustBeStaticallyKnownType 

func MustBeStaticallyKnownType(ref ResolvableTypeReference) *types.T

MustBeStaticallyKnownType does the same thing as GetStaticallyKnownType but panics in the case that the reference is not statically known. This function is intended to be used in tests or in cases where it is not possible to have any unresolved type references.

func NameString 

func NameString(s string) string

NameString escapes an identifier stored in a string to a SQL identifier.

func NameStringP 

func NameStringP(s *string) string

NameStringP escapes an identifier stored in a heap string to a SQL identifier, avoiding a heap allocation.

func NewAggInAggError 

func NewAggInAggError() error

NewAggInAggError creates an error for the case when an aggregate function is contained within another aggregate function.

func NewCannotMixBitArraySizesError 

func NewCannotMixBitArraySizesError(op string) error

NewCannotMixBitArraySizesError creates an error for the case when a bitwise aggregate function is called on bit arrays with different sizes.

func NewContextDependentOpsNotAllowedError 

func NewContextDependentOpsNotAllowedError(context string) error

NewContextDependentOpsNotAllowedError creates an error for the case when context-dependent operators are not allowed in the given context.

func NewInvalidFunctionUsageError 

func NewInvalidFunctionUsageError(class FunctionClass, context string) error

NewInvalidFunctionUsageError creates a rejection for a special function.

func NewInvalidNestedSRFError 

func NewInvalidNestedSRFError(context string) error

NewInvalidNestedSRFError creates a rejection for a nested SRF.

func NewTypeIsNotCompositeError 

func NewTypeIsNotCompositeError(resolvedType *types.T) error

NewTypeIsNotCompositeError generates an error suitable to report when a ColumnAccessExpr or TupleStar is applied to a non-composite type.

func ParseBool 

func ParseBool(s string) (bool, error)

ParseBool parses and returns the boolean value represented by the provided string, or an error if parsing is unsuccessful. See https://github.com/postgres/postgres/blob/90627cf98a8e7d0531789391fd798c9bfcc3bc1a/src/backend/utils/adt/bool.c#L36

func ParseHLC 

func ParseHLC(s string) (hlc.Timestamp, error)

ParseHLC parses a string representation of an `hlc.Timestamp`. This differs from hlc.ParseTimestamp in that it parses the decimal serialization of an hlc timestamp as opposed to the string serialization performed by hlc.Timestamp.String().

This function is used to parse: 

1580361670629466905.0000000001

hlc.ParseTimestamp() would be used to parse: 

1580361670.629466905,1

func ParsePath 

func ParsePath(str string) []string

ParsePath splits a string of the form "/foo/bar" into strings ["foo", "bar"]. An empty string is allowed, otherwise the string must start with /.

func PgwireFormatBool 

func PgwireFormatBool(d bool) byte

PgwireFormatBool returns a single byte representing a boolean according to pgwire encoding.

func Pretty 

func Pretty(stmt NodeFormatter) string

Pretty pretty prints stmt with default options.

func ProcessPlaceholderAnnotations 

func ProcessPlaceholderAnnotations(
	semaCtx *SemaContext, stmt Statement, typeHints PlaceholderTypes,
) error

ProcessPlaceholderAnnotations performs an order-independent global traversal of the provided Statement, annotating all placeholders with a type in either of the following situations:

  • the placeholder is the subject of an explicit type annotation in at least one of its occurrences. If it is subject to multiple explicit type annotations where the types are not all in agreement, or if the placeholder already has a type hint in the placeholder map which conflicts with the explicit type annotation type, an error will be thrown.

  • the placeholder is the subject to a cast of the same type in all occurrences of the placeholder. If the placeholder is subject to casts of multiple types, or if it has occurrences without a cast, no error will be thrown but the type will not be inferred. If the placeholder already has a type hint, that type will be kept regardless of any casts.

See docs/RFCS/20160203_typing.md for more details on placeholder typing (in particular section "First pass: placeholder annotations").

The typeHints slice contains the client-provided hints and is populated with any newly assigned types. It is assumed to be pre-sized to the number of placeholders in the statement and is populated accordingly.

TODO(nvanbenschoten): Can this visitor and map be preallocated (like normalizeVisitor)?

func ResolveBlankPaddedChar 

func ResolveBlankPaddedChar(s string, t *types.T) string

ResolveBlankPaddedChar pads the given string with spaces if blank padding is required or returns the string unmodified otherwise.

func ResolveType 

func ResolveType(
	ctx context.Context, ref ResolvableTypeReference, resolver TypeReferenceResolver,
) (*types.T, error)

ResolveType converts a ResolvableTypeReference into a *types.T.

func Serialize 

func Serialize(n NodeFormatter) string

Serialize pretty prints a node to a string using FmtSerializable; it is appropriate when we store expressions into strings that are stored on disk and may be later parsed back into expressions.

func SerializeForDisplay 

func SerializeForDisplay(n NodeFormatter) string

SerializeForDisplay pretty prints a node to a string using FmtParsable. It is appropriate when printing expressions that are visible to end users.

func SimilarEscape 

func SimilarEscape(pattern string) string

SimilarEscape converts a SQL:2008 regexp pattern to POSIX style, so it can be used by our regexp engine.

func StmtDebugString 

func StmtDebugString(stmt Statement) string

StmtDebugString generates multi-line debug strings in Go format for the expressions that are part of the given statement.

func TimeFamilyPrecisionToRoundDuration 

func TimeFamilyPrecisionToRoundDuration(precision int32) time.Duration

TimeFamilyPrecisionToRoundDuration takes in a type's precision, and returns the duration to use to pass into time.Truncate to truncate to that duration. Panics if the precision is not supported.

func TimestampToDecimal 

func TimestampToDecimal(ts hlc.Timestamp) apd.Decimal

TimestampToDecimal converts the logical timestamp into a decimal value with the number of nanoseconds in the integer part and the logical counter in the decimal part.

func ValidCast 

func ValidCast(src, tgt *types.T, ctx CastContext) bool

ValidCast returns true if a valid cast exists from src to tgt in the given context.

func WalkExprConst 

func WalkExprConst(v Visitor, expr Expr)

WalkExprConst is a variant of WalkExpr for visitors that do not modify the expression.

Types

type AbbreviatedGrant 

type AbbreviatedGrant struct {
	Privileges      privilege.List
	Target          AlterDefaultPrivilegesTargetObject
	Grantees        RoleSpecList
	WithGrantOption bool
}

AbbreviatedGrant represents the GRANT part of an ALTER DEFAULT PRIVILEGES statement.

func (*AbbreviatedGrant) Format 

func (n *AbbreviatedGrant) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type AbbreviatedRevoke 

type AbbreviatedRevoke struct {
	Privileges     privilege.List
	Target         AlterDefaultPrivilegesTargetObject
	Grantees       RoleSpecList
	GrantOptionFor bool
}

AbbreviatedRevoke represents the REVOKE part of an ALTER DEFAULT PRIVILEGES statement.

func (*AbbreviatedRevoke) Format 

func (n *AbbreviatedRevoke) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type AggType 

type AggType int

AggType specifies the type of aggregation. 

const (

	// GeneralAgg is used for general-purpose aggregate functions.
	// array_agg(col1 ORDER BY col2)
	GeneralAgg AggType
	// OrderedSetAgg is used for ordered-set aggregate functions.
	// percentile_disc(fraction) WITHIN GROUP (ORDER BY col1)
	OrderedSetAgg
)

FuncExpr.AggType

type AggregateFunc 

type AggregateFunc interface {
	// Add accumulates the passed datums into the AggregateFunc.
	// Most implementations require one and only one firstArg argument.
	// If an aggregate function requires more than one argument,
	// all additional arguments (after firstArg) are passed in as a
	// variadic collection, otherArgs.
	// This interface (as opposed to `args ...Datum`) avoids unnecessary
	// allocation of otherArgs in the majority of cases.
	Add(_ context.Context, firstArg Datum, otherArgs ...Datum) error

	// Result returns the current value of the accumulation. This value
	// will be a deep copy of any AggregateFunc internal state, so that
	// it will not be mutated by additional calls to Add.
	Result() (Datum, error)

	// Reset resets the aggregate function which allows for reusing the same
	// instance for computation without the need to create a new instance.
	// Any memory is kept, if possible.
	Reset(context.Context)

	// Close closes out the AggregateFunc and allows it to release any memory it
	// requested during aggregation, and must be called upon completion of the
	// aggregation.
	Close(context.Context)

	// Size returns the size of the AggregateFunc implementation in bytes. It
	// does *not* account for additional memory used during accumulation.
	Size() int64
}

AggregateFunc accumulates the result of a function of a Datum.

type AliasClause 

type AliasClause struct {
	Alias Name
	Cols  NameList
}

AliasClause represents an alias, optionally with a column list: "AS name" or "AS name(col1, col2)".

func (*AliasClause) Format 

func (a *AliasClause) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type AliasedTableExpr 

type AliasedTableExpr struct {
	Expr       TableExpr
	IndexFlags *IndexFlags
	Ordinality bool
	Lateral    bool
	As         AliasClause
}

AliasedTableExpr represents a table expression coupled with an optional alias.

func (*AliasedTableExpr) Format 

func (node *AliasedTableExpr) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*AliasedTableExpr) String 

func (node *AliasedTableExpr) String() string

func (*AliasedTableExpr) WalkTableExpr 

func (expr *AliasedTableExpr) WalkTableExpr(v Visitor) TableExpr

WalkTableExpr implements the TableExpr interface.

type AllColumnsSelector 

type AllColumnsSelector struct {
	// TableName corresponds to the table prefix, before the star.
	TableName *UnresolvedObjectName
}

AllColumnsSelector corresponds to a selection of all columns in a table when used in a SELECT clause. (e.g. `table.*`).

func (*AllColumnsSelector) Eval 

func (expr *AllColumnsSelector) Eval(ctx *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*AllColumnsSelector) Format 

func (a *AllColumnsSelector) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*AllColumnsSelector) NormalizeVarName 

func (a *AllColumnsSelector) NormalizeVarName() (VarName, error)

NormalizeVarName implements the VarName interface.

func (*AllColumnsSelector) ResolvedType 

func (*AllColumnsSelector) ResolvedType() *types.T

ResolvedType implements the TypedExpr interface.

func (*AllColumnsSelector) String 

func (a *AllColumnsSelector) String() string

func (*AllColumnsSelector) TypeCheck 

func (expr *AllColumnsSelector) TypeCheck(
	_ context.Context, _ *SemaContext, desired *types.T,
) (TypedExpr, error)

TypeCheck implements the Expr interface.

func (*AllColumnsSelector) Variable 

func (a *AllColumnsSelector) Variable()

Variable implements the VariableExpr interface. Although, the AllColumnsSelector ought to be replaced to an IndexedVar before the points the VariableExpr interface is used.

func (*AllColumnsSelector) Walk 

func (expr *AllColumnsSelector) Walk(_ Visitor) Expr

Walk implements the Expr interface.

type AllTablesSelector 

type AllTablesSelector struct {
	ObjectNamePrefix
}

AllTablesSelector corresponds to a selection of all tables in a database, e.g. when used with GRANT.

func (*AllTablesSelector) Format 

func (at *AllTablesSelector) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*AllTablesSelector) NormalizeTablePattern 

func (at *AllTablesSelector) NormalizeTablePattern() (TablePattern, error)

NormalizeTablePattern implements the TablePattern interface.

func (*AllTablesSelector) String 

func (at *AllTablesSelector) String() string

type AlterBackup 

type AlterBackup struct {
	// Backup contains the locations for the backup we seek to add new keys to.
	Backup Expr
	Subdir Expr
	Cmds   AlterBackupCmds
}

AlterBackup represents an ALTER BACKUP statement.

func (*AlterBackup) Format 

func (node *AlterBackup) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*AlterBackup) StatementReturnType 

func (*AlterBackup) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*AlterBackup) StatementTag 

func (*AlterBackup) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*AlterBackup) StatementType 

func (*AlterBackup) StatementType() StatementType

StatementType implements the Statement interface.

func (*AlterBackup) String 

func (n *AlterBackup) String() string

type AlterBackupCmd 

type AlterBackupCmd interface {
	NodeFormatter
	// contains filtered or unexported methods
}

AlterBackupCmd represents a backup modification operation.

type AlterBackupCmds 

type AlterBackupCmds []AlterBackupCmd

AlterBackupCmds is an array of type AlterBackupCmd

func (*AlterBackupCmds) Format 

func (node *AlterBackupCmds) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type AlterBackupKMS 

type AlterBackupKMS struct {
	KMSInfo BackupKMS
}

AlterBackupKMS represents a possible alter_backup_cmd option.

func (*AlterBackupKMS) Format 

func (node *AlterBackupKMS) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type AlterChangefeed 

type AlterChangefeed struct {
	Jobs Expr
	Cmds AlterChangefeedCmds
}

AlterChangefeed represents an ALTER CHANGEFEED statement.

func (*AlterChangefeed) Format 

func (node *AlterChangefeed) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*AlterChangefeed) StatementReturnType 

func (*AlterChangefeed) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*AlterChangefeed) StatementTag 

func (*AlterChangefeed) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*AlterChangefeed) StatementType 

func (*AlterChangefeed) StatementType() StatementType

StatementType implements the Statement interface.

func (*AlterChangefeed) String 

func (n *AlterChangefeed) String() string

type AlterChangefeedAddTarget 

type AlterChangefeedAddTarget struct {
	Targets ChangefeedTargets
	Options KVOptions
}

AlterChangefeedAddTarget represents an ADD <targets> command

func (*AlterChangefeedAddTarget) Format 

func (node *AlterChangefeedAddTarget) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type AlterChangefeedCmd 

type AlterChangefeedCmd interface {
	NodeFormatter
	// contains filtered or unexported methods
}

AlterChangefeedCmd represents a changefeed modification operation.

type AlterChangefeedCmds 

type AlterChangefeedCmds []AlterChangefeedCmd

AlterChangefeedCmds represents a list of changefeed alterations

func (*AlterChangefeedCmds) Format 

func (node *AlterChangefeedCmds) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*AlterChangefeedCmds) String 

func (n *AlterChangefeedCmds) String() string

type AlterChangefeedDropTarget 

type AlterChangefeedDropTarget struct {
	Targets ChangefeedTargets
}

AlterChangefeedDropTarget represents an DROP <targets> command

func (*AlterChangefeedDropTarget) Format 

func (node *AlterChangefeedDropTarget) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type AlterChangefeedSetOptions 

type AlterChangefeedSetOptions struct {
	Options KVOptions
}

AlterChangefeedSetOptions represents an SET <options> command

func (*AlterChangefeedSetOptions) Format 

func (node *AlterChangefeedSetOptions) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type AlterChangefeedUnsetOptions 

type AlterChangefeedUnsetOptions struct {
	Options NameList
}

AlterChangefeedUnsetOptions represents an UNSET <options> command

func (*AlterChangefeedUnsetOptions) Format 

func (node *AlterChangefeedUnsetOptions) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type AlterDatabaseAddRegion 

type AlterDatabaseAddRegion struct {
	Name        Name
	Region      Name
	IfNotExists bool
}

AlterDatabaseAddRegion represents a ALTER DATABASE ADD REGION statement.

func (*AlterDatabaseAddRegion) Format 

func (node *AlterDatabaseAddRegion) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*AlterDatabaseAddRegion) StatementReturnType 

func (*AlterDatabaseAddRegion) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*AlterDatabaseAddRegion) StatementTag 

func (*AlterDatabaseAddRegion) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*AlterDatabaseAddRegion) StatementType 

func (*AlterDatabaseAddRegion) StatementType() StatementType

StatementType implements the Statement interface.

func (*AlterDatabaseAddRegion) String 

func (n *AlterDatabaseAddRegion) String() string

type AlterDatabaseAddSuperRegion 

type AlterDatabaseAddSuperRegion struct {
	DatabaseName    Name
	SuperRegionName Name
	Regions         []Name
}

AlterDatabaseAddSuperRegion represents a ALTER DATABASE ADD SUPER REGION ... statement.

func (*AlterDatabaseAddSuperRegion) Format 

func (node *AlterDatabaseAddSuperRegion) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*AlterDatabaseAddSuperRegion) StatementReturnType 

func (*AlterDatabaseAddSuperRegion) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*AlterDatabaseAddSuperRegion) StatementTag 

func (*AlterDatabaseAddSuperRegion) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*AlterDatabaseAddSuperRegion) StatementType 

func (*AlterDatabaseAddSuperRegion) StatementType() StatementType

StatementType implements the Statement interface.

func (*AlterDatabaseAddSuperRegion) String 

func (n *AlterDatabaseAddSuperRegion) String() string

type AlterDatabaseDropRegion 

type AlterDatabaseDropRegion struct {
	Name     Name
	Region   Name
	IfExists bool
}

AlterDatabaseDropRegion represents a ALTER DATABASE DROP REGION statement.

func (*AlterDatabaseDropRegion) Format 

func (node *AlterDatabaseDropRegion) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*AlterDatabaseDropRegion) StatementReturnType 

func (*AlterDatabaseDropRegion) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*AlterDatabaseDropRegion) StatementTag 

func (*AlterDatabaseDropRegion) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*AlterDatabaseDropRegion) StatementType 

func (*AlterDatabaseDropRegion) StatementType() StatementType

StatementType implements the Statement interface.

func (*AlterDatabaseDropRegion) String 

func (n *AlterDatabaseDropRegion) String() string

type AlterDatabaseDropSuperRegion 

type AlterDatabaseDropSuperRegion struct {
	DatabaseName    Name
	SuperRegionName Name
}

AlterDatabaseDropSuperRegion represents a ALTER DATABASE DROP SUPER REGION ... statement.

func (*AlterDatabaseDropSuperRegion) Format 

func (node *AlterDatabaseDropSuperRegion) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*AlterDatabaseDropSuperRegion) StatementReturnType 

func (*AlterDatabaseDropSuperRegion) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*AlterDatabaseDropSuperRegion) StatementTag 

func (*AlterDatabaseDropSuperRegion) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*AlterDatabaseDropSuperRegion) StatementType 

func (*AlterDatabaseDropSuperRegion) StatementType() StatementType

StatementType implements the Statement interface.

func (*AlterDatabaseDropSuperRegion) String 

func (n *AlterDatabaseDropSuperRegion) String() string

type AlterDatabaseOwner 

type AlterDatabaseOwner struct {
	Name  Name
	Owner RoleSpec
}

AlterDatabaseOwner represents a ALTER DATABASE OWNER TO statement.

func (*AlterDatabaseOwner) Format 

func (node *AlterDatabaseOwner) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*AlterDatabaseOwner) StatementReturnType 

func (*AlterDatabaseOwner) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*AlterDatabaseOwner) StatementTag 

func (*AlterDatabaseOwner) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*AlterDatabaseOwner) StatementType 

func (*AlterDatabaseOwner) StatementType() StatementType

StatementType implements the Statement interface.

func (*AlterDatabaseOwner) String 

func (n *AlterDatabaseOwner) String() string

type AlterDatabasePlacement 

type AlterDatabasePlacement struct {
	Name      Name
	Placement DataPlacement
}

AlterDatabasePlacement represents a ALTER DATABASE PLACEMENT statement.

func (*AlterDatabasePlacement) Format 

func (node *AlterDatabasePlacement) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*AlterDatabasePlacement) StatementReturnType 

func (*AlterDatabasePlacement) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*AlterDatabasePlacement) StatementTag 

func (*AlterDatabasePlacement) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*AlterDatabasePlacement) StatementType 

func (*AlterDatabasePlacement) StatementType() StatementType

StatementType implements the Statement interface.

func (*AlterDatabasePlacement) String 

func (n *AlterDatabasePlacement) String() string

type AlterDatabasePrimaryRegion 

type AlterDatabasePrimaryRegion struct {
	Name          Name
	PrimaryRegion Name
}

AlterDatabasePrimaryRegion represents a ALTER DATABASE PRIMARY REGION ... statement.

func (*AlterDatabasePrimaryRegion) Format 

func (node *AlterDatabasePrimaryRegion) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*AlterDatabasePrimaryRegion) StatementReturnType 

func (*AlterDatabasePrimaryRegion) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*AlterDatabasePrimaryRegion) StatementTag 

func (*AlterDatabasePrimaryRegion) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*AlterDatabasePrimaryRegion) StatementType 

func (*AlterDatabasePrimaryRegion) StatementType() StatementType

StatementType implements the Statement interface.

func (*AlterDatabasePrimaryRegion) String 

func (n *AlterDatabasePrimaryRegion) String() string

type AlterDatabaseSurvivalGoal 

type AlterDatabaseSurvivalGoal struct {
	Name         Name
	SurvivalGoal SurvivalGoal
}

AlterDatabaseSurvivalGoal represents a ALTER DATABASE SURVIVE ... statement.

func (*AlterDatabaseSurvivalGoal) Format 

func (node *AlterDatabaseSurvivalGoal) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*AlterDatabaseSurvivalGoal) StatementReturnType 

func (*AlterDatabaseSurvivalGoal) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*AlterDatabaseSurvivalGoal) StatementTag 

func (*AlterDatabaseSurvivalGoal) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*AlterDatabaseSurvivalGoal) StatementType 

func (*AlterDatabaseSurvivalGoal) StatementType() StatementType

StatementType implements the Statement interface.

func (*AlterDatabaseSurvivalGoal) String 

func (n *AlterDatabaseSurvivalGoal) String() string

type AlterDefaultPrivileges 

type AlterDefaultPrivileges struct {
	Roles RoleSpecList
	// True if `ALTER DEFAULT PRIVILEGES FOR ALL ROLES` is executed.
	ForAllRoles bool
	// If Schema is not specified, ALTER DEFAULT PRIVILEGES is being
	// run on the current database.
	Schemas ObjectNamePrefixList

	// Database is only used when converting a granting / revoking incompatible
	// database privileges to an alter default privileges statement.
	// If it is not set, the current database is used.
	Database *Name

	// Only one of Grant or Revoke should be set. IsGrant is used to determine
	// which one is set.
	IsGrant bool
	Grant   AbbreviatedGrant
	Revoke  AbbreviatedRevoke
}

AlterDefaultPrivileges represents an ALTER DEFAULT PRIVILEGES statement.

func (*AlterDefaultPrivileges) Format 

func (n *AlterDefaultPrivileges) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*AlterDefaultPrivileges) StatementReturnType 

func (*AlterDefaultPrivileges) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*AlterDefaultPrivileges) StatementTag 

func (*AlterDefaultPrivileges) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*AlterDefaultPrivileges) StatementType 

func (*AlterDefaultPrivileges) StatementType() StatementType

StatementType implements the Statement interface.

func (*AlterDefaultPrivileges) String 

func (n *AlterDefaultPrivileges) String() string

type AlterDefaultPrivilegesTargetObject 

type AlterDefaultPrivilegesTargetObject uint32

AlterDefaultPrivilegesTargetObject represents the type of object that is having it's default privileges altered. 

const (
	Tables    AlterDefaultPrivilegesTargetObject = 1
	Sequences AlterDefaultPrivilegesTargetObject = 2
	Types     AlterDefaultPrivilegesTargetObject = 3
	Schemas   AlterDefaultPrivilegesTargetObject = 4
)

The numbers are explicitly assigned since the DefaultPrivilegesPerObject map defined in the DefaultPrivilegesPerRole proto requires the key value for the object type to remain unchanged.

func GetAlterDefaultPrivilegesTargetObjects 

func GetAlterDefaultPrivilegesTargetObjects() []AlterDefaultPrivilegesTargetObject

GetAlterDefaultPrivilegesTargetObjects returns a slice of all the AlterDefaultPrivilegesTargetObjects.

func (AlterDefaultPrivilegesTargetObject) String 

func (t AlterDefaultPrivilegesTargetObject) String() string

func (AlterDefaultPrivilegesTargetObject) ToPrivilegeObjectType 

func (t AlterDefaultPrivilegesTargetObject) ToPrivilegeObjectType() privilege.ObjectType

ToPrivilegeObjectType returns the privilege.ObjectType corresponding to the AlterDefaultPrivilegesTargetObject.

type AlterIndex 

type AlterIndex struct {
	IfExists bool
	Index    TableIndexName
	Cmds     AlterIndexCmds
}

AlterIndex represents an ALTER INDEX statement.

func (*AlterIndex) Format 

func (node *AlterIndex) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*AlterIndex) StatementReturnType 

func (*AlterIndex) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*AlterIndex) StatementTag 

func (*AlterIndex) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*AlterIndex) StatementType 

func (*AlterIndex) StatementType() StatementType

StatementType implements the Statement interface.

func (*AlterIndex) String 

func (n *AlterIndex) String() string

type AlterIndexCmd 

type AlterIndexCmd interface {
	NodeFormatter
	// contains filtered or unexported methods
}

AlterIndexCmd represents an index modification operation.

type AlterIndexCmds 

type AlterIndexCmds []AlterIndexCmd

AlterIndexCmds represents a list of index alterations.

func (*AlterIndexCmds) Format 

func (node *AlterIndexCmds) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type AlterIndexPartitionBy 

type AlterIndexPartitionBy struct {
	*PartitionByIndex
}

AlterIndexPartitionBy represents an ALTER INDEX PARTITION BY command.

func (*AlterIndexPartitionBy) Format 

func (node *AlterIndexPartitionBy) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type AlterRole 

type AlterRole struct {
	Name      RoleSpec
	IfExists  bool
	IsRole    bool
	KVOptions KVOptions
}

AlterRole represents an `ALTER ROLE ... WITH options` statement.

func (*AlterRole) Format 

func (node *AlterRole) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*AlterRole) StatementReturnType 

func (*AlterRole) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*AlterRole) StatementTag 

func (*AlterRole) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*AlterRole) StatementType 

func (*AlterRole) StatementType() StatementType

StatementType implements the Statement interface.

func (*AlterRole) String 

func (n *AlterRole) String() string

type AlterRoleSet 

type AlterRoleSet struct {
	RoleName     RoleSpec
	IfExists     bool
	IsRole       bool
	AllRoles     bool
	DatabaseName Name
	SetOrReset   *SetVar
}

AlterRoleSet represents an `ALTER ROLE ... SET` statement.

func (*AlterRoleSet) Format 

func (node *AlterRoleSet) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*AlterRoleSet) StatementReturnType 

func (*AlterRoleSet) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*AlterRoleSet) StatementTag 

func (*AlterRoleSet) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*AlterRoleSet) StatementType 

func (*AlterRoleSet) StatementType() StatementType

StatementType implements the Statement interface.

func (*AlterRoleSet) String 

func (n *AlterRoleSet) String() string

type AlterSchema 

type AlterSchema struct {
	Schema ObjectNamePrefix
	Cmd    AlterSchemaCmd
}

AlterSchema represents an ALTER SCHEMA statement.

func (*AlterSchema) Format 

func (node *AlterSchema) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*AlterSchema) StatementReturnType 

func (*AlterSchema) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*AlterSchema) StatementTag 

func (*AlterSchema) StatementTag() string

StatementTag implements the Statement interface.

func (*AlterSchema) StatementType 

func (*AlterSchema) StatementType() StatementType

StatementType implements the Statement interface.

func (*AlterSchema) String 

func (n *AlterSchema) String() string

type AlterSchemaCmd 

type AlterSchemaCmd interface {
	NodeFormatter
	// contains filtered or unexported methods
}

AlterSchemaCmd represents a schema modification operation.

type AlterSchemaOwner 

type AlterSchemaOwner struct {
	Owner RoleSpec
}

AlterSchemaOwner represents an ALTER SCHEMA OWNER TO command.

func (*AlterSchemaOwner) Format 

func (node *AlterSchemaOwner) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type AlterSchemaRename 

type AlterSchemaRename struct {
	NewName Name
}

AlterSchemaRename represents an ALTER SCHEMA RENAME command.

func (*AlterSchemaRename) Format 

func (node *AlterSchemaRename) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type AlterSequence 

type AlterSequence struct {
	IfExists bool
	Name     *UnresolvedObjectName
	Options  SequenceOptions
}

AlterSequence represents an ALTER SEQUENCE statement, except in the case of ALTER SEQUENCE <seqName> RENAME TO <newSeqName>, which is represented by a RenameTable node.

func (*AlterSequence) Format 

func (node *AlterSequence) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*AlterSequence) StatementReturnType 

func (*AlterSequence) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*AlterSequence) StatementTag 

func (*AlterSequence) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*AlterSequence) StatementType 

func (*AlterSequence) StatementType() StatementType

StatementType implements the Statement interface.

func (*AlterSequence) String 

func (n *AlterSequence) String() string

type AlterTable 

type AlterTable struct {
	IfExists bool
	Table    *UnresolvedObjectName
	Cmds     AlterTableCmds
}

AlterTable represents an ALTER TABLE statement.

func (*AlterTable) Format 

func (node *AlterTable) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*AlterTable) HoistAddColumnConstraints 

func (node *AlterTable) HoistAddColumnConstraints()

HoistAddColumnConstraints converts column constraints in ADD COLUMN commands, stored in node.Cmds, into top-level commands to add those constraints. Currently, this only applies to checks. For example, the ADD COLUMN in 

ALTER TABLE t ADD COLUMN a INT CHECK (a < 1)

is transformed into two commands, as in 

ALTER TABLE t ADD COLUMN a INT, ADD CONSTRAINT check_a CHECK (a < 1)

(with an auto-generated name).

Note that some SQL databases require that a constraint attached to a column to refer only to the column it is attached to. We follow Postgres' behavior, however, in omitting this restriction by blindly hoisting all column constraints. For example, the following statement is accepted in CockroachDB and Postgres, but not necessarily other SQL databases: 

ALTER TABLE t ADD COLUMN a INT CHECK (a < b)

func (*AlterTable) StatementReturnType 

func (*AlterTable) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*AlterTable) StatementTag 

func (*AlterTable) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*AlterTable) StatementType 

func (*AlterTable) StatementType() StatementType

StatementType implements the Statement interface.

func (*AlterTable) String 

func (n *AlterTable) String() string

type AlterTableAddColumn 

type AlterTableAddColumn struct {
	IfNotExists bool
	ColumnDef   *ColumnTableDef
}

AlterTableAddColumn represents an ADD COLUMN command.

func (*AlterTableAddColumn) Format 

func (node *AlterTableAddColumn) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*AlterTableAddColumn) String 

func (n *AlterTableAddColumn) String() string

type AlterTableAddConstraint 

type AlterTableAddConstraint struct {
	ConstraintDef      ConstraintTableDef
	ValidationBehavior ValidationBehavior
}

AlterTableAddConstraint represents an ADD CONSTRAINT command.

func (*AlterTableAddConstraint) Format 

func (node *AlterTableAddConstraint) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*AlterTableAddConstraint) String 

func (n *AlterTableAddConstraint) String() string

type AlterTableAlterColumnType 

type AlterTableAlterColumnType struct {
	Collation string
	Column    Name
	ToType    ResolvableTypeReference
	Using     Expr
}

AlterTableAlterColumnType represents an ALTER TABLE ALTER COLUMN TYPE command.

func (*AlterTableAlterColumnType) Format 

func (node *AlterTableAlterColumnType) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*AlterTableAlterColumnType) GetColumn 

func (node *AlterTableAlterColumnType) GetColumn() Name

GetColumn implements the ColumnMutationCmd interface.

func (*AlterTableAlterColumnType) String 

func (n *AlterTableAlterColumnType) String() string

type AlterTableAlterPrimaryKey 

type AlterTableAlterPrimaryKey struct {
	Columns       IndexElemList
	Sharded       *ShardedIndexDef
	Name          Name
	StorageParams StorageParams
}

AlterTableAlterPrimaryKey represents an ALTER TABLE ALTER PRIMARY KEY command.

func (*AlterTableAlterPrimaryKey) Format 

func (node *AlterTableAlterPrimaryKey) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type AlterTableCmd 

type AlterTableCmd interface {
	NodeFormatter
	// contains filtered or unexported methods
}

AlterTableCmd represents a table modification operation.

type AlterTableCmds 

type AlterTableCmds []AlterTableCmd

AlterTableCmds represents a list of table alterations.

func (*AlterTableCmds) Format 

func (node *AlterTableCmds) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*AlterTableCmds) String 

func (n *AlterTableCmds) String() string

type AlterTableDropColumn 

type AlterTableDropColumn struct {
	IfExists     bool
	Column       Name
	DropBehavior DropBehavior
}

AlterTableDropColumn represents a DROP COLUMN command.

func (*AlterTableDropColumn) Format 

func (node *AlterTableDropColumn) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*AlterTableDropColumn) String 

func (n *AlterTableDropColumn) String() string

type AlterTableDropConstraint 

type AlterTableDropConstraint struct {
	IfExists     bool
	Constraint   Name
	DropBehavior DropBehavior
}

AlterTableDropConstraint represents a DROP CONSTRAINT command.

func (*AlterTableDropConstraint) Format 

func (node *AlterTableDropConstraint) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*AlterTableDropConstraint) String 

func (n *AlterTableDropConstraint) String() string

type AlterTableDropNotNull 

type AlterTableDropNotNull struct {
	Column Name
}

AlterTableDropNotNull represents an ALTER COLUMN DROP NOT NULL command.

func (*AlterTableDropNotNull) Format 

func (node *AlterTableDropNotNull) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*AlterTableDropNotNull) GetColumn 

func (node *AlterTableDropNotNull) GetColumn() Name

GetColumn implements the ColumnMutationCmd interface.

func (*AlterTableDropNotNull) String 

func (n *AlterTableDropNotNull) String() string

type AlterTableDropStored 

type AlterTableDropStored struct {
	Column Name
}

AlterTableDropStored represents an ALTER COLUMN DROP STORED command to remove the computed-ness from a column.

func (*AlterTableDropStored) Format 

func (node *AlterTableDropStored) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*AlterTableDropStored) GetColumn 

func (node *AlterTableDropStored) GetColumn() Name

GetColumn implemnets the ColumnMutationCmd interface.

func (*AlterTableDropStored) String 

func (n *AlterTableDropStored) String() string

type AlterTableInjectStats 

type AlterTableInjectStats struct {
	Stats Expr
}

AlterTableInjectStats represents an ALTER TABLE INJECT STATISTICS statement.

func (*AlterTableInjectStats) Format 

func (node *AlterTableInjectStats) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type AlterTableLocality 

type AlterTableLocality struct {
	Name     *UnresolvedObjectName
	IfExists bool
	Locality *Locality
}

AlterTableLocality represents an ALTER TABLE LOCALITY command.

func (*AlterTableLocality) Format 

func (node *AlterTableLocality) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*AlterTableLocality) StatementReturnType 

func (*AlterTableLocality) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*AlterTableLocality) StatementTag 

func (*AlterTableLocality) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*AlterTableLocality) StatementType 

func (*AlterTableLocality) StatementType() StatementType

StatementType implements the Statement interface.

func (*AlterTableLocality) String 

func (n *AlterTableLocality) String() string

type AlterTableOwner 

type AlterTableOwner struct {
	Name           *UnresolvedObjectName
	Owner          RoleSpec
	IfExists       bool
	IsView         bool
	IsMaterialized bool
	IsSequence     bool
}

AlterTableOwner represents an ALTER TABLE OWNER TO command.

func (*AlterTableOwner) Format 

func (node *AlterTableOwner) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*AlterTableOwner) StatementReturnType 

func (*AlterTableOwner) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*AlterTableOwner) StatementTag 

func (*AlterTableOwner) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*AlterTableOwner) StatementType 

func (*AlterTableOwner) StatementType() StatementType

StatementType implements the Statement interface.

func (*AlterTableOwner) String 

func (n *AlterTableOwner) String() string

type AlterTablePartitionByTable 

type AlterTablePartitionByTable struct {
	*PartitionByTable
}

AlterTablePartitionByTable represents an ALTER TABLE PARTITION [ALL] BY command.

func (*AlterTablePartitionByTable) Format 

func (node *AlterTablePartitionByTable) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type AlterTableRenameColumn 

type AlterTableRenameColumn struct {
	Column  Name
	NewName Name
}

AlterTableRenameColumn represents an ALTER TABLE RENAME [COLUMN] command.

func (*AlterTableRenameColumn) Format 

func (node *AlterTableRenameColumn) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type AlterTableRenameConstraint 

type AlterTableRenameConstraint struct {
	Constraint Name
	NewName    Name
}

AlterTableRenameConstraint represents an ALTER TABLE RENAME CONSTRAINT command.

func (*AlterTableRenameConstraint) Format 

func (node *AlterTableRenameConstraint) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type AlterTableResetStorageParams 

type AlterTableResetStorageParams struct {
	Params NameList
}

AlterTableResetStorageParams represents a ALTER TABLE RESET command.

func (*AlterTableResetStorageParams) Format 

func (node *AlterTableResetStorageParams) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type AlterTableSetAudit 

type AlterTableSetAudit struct {
	Mode AuditMode
}

AlterTableSetAudit represents an ALTER TABLE AUDIT SET statement.

func (*AlterTableSetAudit) Format 

func (node *AlterTableSetAudit) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type AlterTableSetDefault 

type AlterTableSetDefault struct {
	Column  Name
	Default Expr
}

AlterTableSetDefault represents an ALTER COLUMN SET DEFAULT or DROP DEFAULT command.

func (*AlterTableSetDefault) Format 

func (node *AlterTableSetDefault) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*AlterTableSetDefault) GetColumn 

func (node *AlterTableSetDefault) GetColumn() Name

GetColumn implements the ColumnMutationCmd interface.

func (*AlterTableSetDefault) String 

func (n *AlterTableSetDefault) String() string

type AlterTableSetNotNull 

type AlterTableSetNotNull struct {
	Column Name
}

AlterTableSetNotNull represents an ALTER COLUMN SET NOT NULL command.

func (*AlterTableSetNotNull) Format 

func (node *AlterTableSetNotNull) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*AlterTableSetNotNull) GetColumn 

func (node *AlterTableSetNotNull) GetColumn() Name

GetColumn implements the ColumnMutationCmd interface.

func (*AlterTableSetNotNull) String 

func (n *AlterTableSetNotNull) String() string

type AlterTableSetOnUpdate 

type AlterTableSetOnUpdate struct {
	Column Name
	Expr   Expr
}

AlterTableSetOnUpdate represents an ALTER COLUMN ON UPDATE SET or DROP ON UPDATE command.

func (*AlterTableSetOnUpdate) Format 

func (node *AlterTableSetOnUpdate) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*AlterTableSetOnUpdate) GetColumn 

func (node *AlterTableSetOnUpdate) GetColumn() Name

GetColumn implements the ColumnMutationCmd interface.

type AlterTableSetSchema 

type AlterTableSetSchema struct {
	Name           *UnresolvedObjectName
	Schema         Name
	IfExists       bool
	IsView         bool
	IsMaterialized bool
	IsSequence     bool
}

AlterTableSetSchema represents an ALTER TABLE SET SCHEMA command.

func (*AlterTableSetSchema) Format 

func (node *AlterTableSetSchema) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*AlterTableSetSchema) StatementReturnType 

func (*AlterTableSetSchema) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*AlterTableSetSchema) StatementTag 

func (*AlterTableSetSchema) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*AlterTableSetSchema) StatementType 

func (*AlterTableSetSchema) StatementType() StatementType

StatementType implements the Statement interface.

func (*AlterTableSetSchema) String 

func (n *AlterTableSetSchema) String() string

type AlterTableSetStorageParams 

type AlterTableSetStorageParams struct {
	StorageParams StorageParams
}

AlterTableSetStorageParams represents a ALTER TABLE SET command.

func (*AlterTableSetStorageParams) Format 

func (node *AlterTableSetStorageParams) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type AlterTableSetVisible 

type AlterTableSetVisible struct {
	Column  Name
	Visible bool
}

AlterTableSetVisible represents an ALTER COLUMN SET VISIBLE or NOT VISIBLE command.

func (*AlterTableSetVisible) Format 

func (node *AlterTableSetVisible) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*AlterTableSetVisible) GetColumn 

func (node *AlterTableSetVisible) GetColumn() Name

GetColumn implements the ColumnMutationCmd interface.

func (*AlterTableSetVisible) String 

func (n *AlterTableSetVisible) String() string

type AlterTableValidateConstraint 

type AlterTableValidateConstraint struct {
	Constraint Name
}

AlterTableValidateConstraint represents a VALIDATE CONSTRAINT command.

func (*AlterTableValidateConstraint) Format 

func (node *AlterTableValidateConstraint) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type AlterTenantSetClusterSetting 

type AlterTenantSetClusterSetting struct {
	SetClusterSetting
	TenantID  Expr
	TenantAll bool
}

AlterTenantSetClusterSetting represents an ALTER TENANT SET CLUSTER SETTING statement.

func (*AlterTenantSetClusterSetting) Format 

func (n *AlterTenantSetClusterSetting) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*AlterTenantSetClusterSetting) StatementReturnType 

func (*AlterTenantSetClusterSetting) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*AlterTenantSetClusterSetting) StatementTag 

func (*AlterTenantSetClusterSetting) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*AlterTenantSetClusterSetting) StatementType 

func (*AlterTenantSetClusterSetting) StatementType() StatementType

StatementType implements the Statement interface.

func (*AlterTenantSetClusterSetting) String 

func (n *AlterTenantSetClusterSetting) String() string

type AlterType 

type AlterType struct {
	Type *UnresolvedObjectName
	Cmd  AlterTypeCmd
}

AlterType represents an ALTER TYPE statement.

func (*AlterType) Format 

func (node *AlterType) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*AlterType) StatementReturnType 

func (*AlterType) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*AlterType) StatementTag 

func (*AlterType) StatementTag() string

StatementTag implements the Statement interface.

func (*AlterType) StatementType 

func (*AlterType) StatementType() StatementType

StatementType implements the Statement interface.

func (*AlterType) String 

func (n *AlterType) String() string

type AlterTypeAddValue 

type AlterTypeAddValue struct {
	NewVal      EnumValue
	IfNotExists bool
	Placement   *AlterTypeAddValuePlacement
}

AlterTypeAddValue represents an ALTER TYPE ADD VALUE command.

func (*AlterTypeAddValue) Format 

func (node *AlterTypeAddValue) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type AlterTypeAddValuePlacement 

type AlterTypeAddValuePlacement struct {
	Before      bool
	ExistingVal EnumValue
}

AlterTypeAddValuePlacement represents the placement clause for an ALTER TYPE ADD VALUE command ([BEFORE | AFTER] value).

type AlterTypeCmd 

type AlterTypeCmd interface {
	NodeFormatter
	// contains filtered or unexported methods
}

AlterTypeCmd represents a type modification operation.

type AlterTypeDropValue 

type AlterTypeDropValue struct {
	Val EnumValue
}

AlterTypeDropValue represents an ALTER TYPE DROP VALUE command.

func (*AlterTypeDropValue) Format 

func (node *AlterTypeDropValue) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type AlterTypeOwner 

type AlterTypeOwner struct {
	Owner RoleSpec
}

AlterTypeOwner represents an ALTER TYPE OWNER TO command.

func (*AlterTypeOwner) Format 

func (node *AlterTypeOwner) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type AlterTypeRename 

type AlterTypeRename struct {
	NewName Name
}

AlterTypeRename represents an ALTER TYPE RENAME command.

func (*AlterTypeRename) Format 

func (node *AlterTypeRename) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type AlterTypeRenameValue 

type AlterTypeRenameValue struct {
	OldVal EnumValue
	NewVal EnumValue
}

AlterTypeRenameValue represents an ALTER TYPE RENAME VALUE command.

func (*AlterTypeRenameValue) Format 

func (node *AlterTypeRenameValue) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type AlterTypeSetSchema 

type AlterTypeSetSchema struct {
	Schema Name
}

AlterTypeSetSchema represents an ALTER TYPE SET SCHEMA command.

func (*AlterTypeSetSchema) Format 

func (node *AlterTypeSetSchema) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type Analyze 

type Analyze struct {
	Table TableExpr
}

Analyze represents an ANALYZE statement.

func (*Analyze) Format 

func (node *Analyze) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*Analyze) StatementReturnType 

func (*Analyze) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*Analyze) StatementTag 

func (*Analyze) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*Analyze) StatementType 

func (*Analyze) StatementType() StatementType

StatementType implements the Statement interface.

func (*Analyze) String 

func (n *Analyze) String() string

type AndExpr 

type AndExpr struct {
	Left, Right Expr
	// contains filtered or unexported fields
}

AndExpr represents an AND expression.

func NewTypedAndExpr 

func NewTypedAndExpr(left, right TypedExpr) *AndExpr

NewTypedAndExpr returns a new AndExpr that is verified to be well-typed.

func (*AndExpr) Eval 

func (expr *AndExpr) Eval(ctx *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*AndExpr) Format 

func (node *AndExpr) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (AndExpr) ResolvedType 

func (ta AndExpr) ResolvedType() *types.T

func (*AndExpr) String 

func (node *AndExpr) String() string

func (*AndExpr) TypeCheck 

func (expr *AndExpr) TypeCheck(
	ctx context.Context, semaCtx *SemaContext, desired *types.T,
) (TypedExpr, error)

TypeCheck implements the Expr interface.

func (*AndExpr) TypedLeft 

func (node *AndExpr) TypedLeft() TypedExpr

TypedLeft returns the AndExpr's left expression as a TypedExpr.

func (*AndExpr) TypedRight 

func (node *AndExpr) TypedRight() TypedExpr

TypedRight returns the AndExpr's right expression as a TypedExpr.

func (*AndExpr) Walk 

func (expr *AndExpr) Walk(v Visitor) Expr

Walk implements the Expr interface.

type AnnotateTypeExpr 

type AnnotateTypeExpr struct {
	Expr Expr
	Type ResolvableTypeReference

	SyntaxMode annotateSyntaxMode
}

AnnotateTypeExpr represents a ANNOTATE_TYPE(expr, type) expression.

func (*AnnotateTypeExpr) Format 

func (node *AnnotateTypeExpr) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*AnnotateTypeExpr) String 

func (node *AnnotateTypeExpr) String() string

func (*AnnotateTypeExpr) TypeCheck 

func (expr *AnnotateTypeExpr) TypeCheck(
	ctx context.Context, semaCtx *SemaContext, desired *types.T,
) (TypedExpr, error)

TypeCheck implements the Expr interface.

func (*AnnotateTypeExpr) TypedInnerExpr 

func (node *AnnotateTypeExpr) TypedInnerExpr() TypedExpr

TypedInnerExpr returns the AnnotateTypeExpr's inner expression as a TypedExpr.

func (*AnnotateTypeExpr) Walk 

func (expr *AnnotateTypeExpr) Walk(v Visitor) Expr

Walk implements the Expr interface.

type AnnotatedNode 

type AnnotatedNode struct {
	AnnIdx AnnotationIdx
}

AnnotatedNode is embedded in AST nodes that have an annotation.

func (AnnotatedNode) GetAnnotation 

func (n AnnotatedNode) GetAnnotation(ann *Annotations) interface{}

GetAnnotation retrieves the annotation associated with this node.

func (AnnotatedNode) SetAnnotation 

func (n AnnotatedNode) SetAnnotation(ann *Annotations, annotation interface{})

SetAnnotation sets the annotation associated with this node.

type AnnotationIdx 

type AnnotationIdx int32

AnnotationIdx is the 1-based index of an annotation. AST nodes that can be annotated store such an index (unique within that AST). 

const NoAnnotation AnnotationIdx = 0

NoAnnotation is the uninitialized annotation index.

type Annotations 

type Annotations []interface{}

Annotations is a container for AST annotations.

func MakeAnnotations 

func MakeAnnotations(numAnnotations AnnotationIdx) Annotations

MakeAnnotations allocates an annotations container of the given size.

func (*Annotations) Get 

func (a *Annotations) Get(idx AnnotationIdx) interface{}

Get an annotation from the container.

func (*Annotations) Set 

func (a *Annotations) Set(idx AnnotationIdx, annotation interface{})

Set an annotation in the container.

type ArgTypes 

type ArgTypes []struct {
	Name string
	Typ  *types.T
}

ArgTypes is very similar to ArgTypes except it allows keeping a string name for each argument as well and using those when printing the human-readable signature.

func (ArgTypes) GetAt 

func (a ArgTypes) GetAt(i int) *types.T

GetAt is part of the TypeList interface.

func (ArgTypes) Length 

func (a ArgTypes) Length() int

Length is part of the TypeList interface.

func (ArgTypes) Match 

func (a ArgTypes) Match(types []*types.T) bool

Match is part of the TypeList interface.

func (ArgTypes) MatchAt 

func (a ArgTypes) MatchAt(typ *types.T, i int) bool

MatchAt is part of the TypeList interface.

func (ArgTypes) MatchLen 

func (a ArgTypes) MatchLen(l int) bool

MatchLen is part of the TypeList interface.

func (ArgTypes) String 

func (a ArgTypes) String() string

func (ArgTypes) Types 

func (a ArgTypes) Types() []*types.T

Types is part of the TypeList interface.

type Array 

type Array struct {
	Exprs Exprs
	// contains filtered or unexported fields
}

Array represents an array constructor.

func NewTypedArray 

func NewTypedArray(typedExprs TypedExprs, typ *types.T) *Array

NewTypedArray returns an Array that is well-typed.

func (*Array) Eval 

func (t *Array) Eval(ctx *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*Array) Format 

func (node *Array) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (Array) ResolvedType 

func (ta Array) ResolvedType() *types.T

func (*Array) String 

func (node *Array) String() string

func (*Array) TypeCheck 

func (expr *Array) TypeCheck(
	ctx context.Context, semaCtx *SemaContext, desired *types.T,
) (TypedExpr, error)

TypeCheck implements the Expr interface.

func (*Array) Walk 

func (expr *Array) Walk(v Visitor) Expr

Walk implements the Expr interface.

type ArrayFlatten 

type ArrayFlatten struct {
	Subquery Expr
	// contains filtered or unexported fields
}

ArrayFlatten represents a subquery array constructor.

func NewTypedArrayFlattenExpr 

func NewTypedArrayFlattenExpr(input Expr) *ArrayFlatten

NewTypedArrayFlattenExpr returns a new ArrayFlattenExpr that is verified to be well-typed.

func (*ArrayFlatten) Eval 

func (t *ArrayFlatten) Eval(ctx *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*ArrayFlatten) Format 

func (node *ArrayFlatten) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (ArrayFlatten) ResolvedType 

func (ta ArrayFlatten) ResolvedType() *types.T

func (*ArrayFlatten) String 

func (node *ArrayFlatten) String() string

func (*ArrayFlatten) TypeCheck 

func (expr *ArrayFlatten) TypeCheck(
	ctx context.Context, semaCtx *SemaContext, desired *types.T,
) (TypedExpr, error)

TypeCheck implements the Expr interface.

func (*ArrayFlatten) Walk 

func (expr *ArrayFlatten) Walk(v Visitor) Expr

Walk implements the Expr interface.

type ArraySubscript 

type ArraySubscript struct {
	Begin Expr
	End   Expr
	Slice bool
}

ArraySubscript corresponds to the syntax `<name>[ ... ]`.

func (*ArraySubscript) Format 

func (a *ArraySubscript) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type ArraySubscripts 

type ArraySubscripts []*ArraySubscript

ArraySubscripts represents a sequence of one or more array subscripts.

func (*ArraySubscripts) Format 

func (a *ArraySubscripts) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type ArrayTypeReference 

type ArrayTypeReference struct {
	ElementType ResolvableTypeReference
}

ArrayTypeReference represents an array of possibly unknown type references.

func (*ArrayTypeReference) Format 

func (node *ArrayTypeReference) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ArrayTypeReference) SQLString 

func (node *ArrayTypeReference) SQLString() string

SQLString implements the ResolvableTypeReference interface.

type AsOfClause 

type AsOfClause struct {
	Expr Expr
}

AsOfClause represents an as of time.

func (*AsOfClause) Format 

func (a *AsOfClause) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type AsOfSystemTime 

type AsOfSystemTime struct {
	// Timestamp is the HLC timestamp evaluated from the AS OF SYSTEM TIME clause.
	Timestamp hlc.Timestamp
	// BoundedStaleness is true if the AS OF SYSTEM TIME clause specifies bounded
	// staleness should be used. If true, Timestamp specifies an (inclusive) lower
	// bound to read from - data can be read from a time later than Timestamp. If
	// false, data is returned at the exact Timestamp specified.
	BoundedStaleness bool
	// If this is a bounded staleness read, ensures we only read from the nearest
	// replica. The query will error if this constraint could not be satisfied.
	NearestOnly bool
	// If this is a bounded staleness read with nearest_only=True, this is set when
	// we failed to satisfy a bounded staleness read with a nearby replica as we
	// have no followers with an up-to-date schema.
	// This is be zero if there is no maximum bound.
	// In non-zero, we want a read t where Timestamp <= t < MaxTimestampBound.
	MaxTimestampBound hlc.Timestamp
}

AsOfSystemTime represents the result from the AS OF SYSTEM TIME clause.

func EvalAsOfTimestamp 

func EvalAsOfTimestamp(
	ctx context.Context,
	asOf AsOfClause,
	semaCtx *SemaContext,
	evalCtx *EvalContext,
	opts ...EvalAsOfTimestampOption,
) (AsOfSystemTime, error)

EvalAsOfTimestamp evaluates the timestamp argument to an AS OF SYSTEM TIME query.

type AuditMode 

type AuditMode int

AuditMode represents a table audit mode 

const (
	// AuditModeDisable is the default mode - no audit.
	AuditModeDisable AuditMode = iota
	// AuditModeReadWrite enables audit on read or write statements.
	AuditModeReadWrite
)

func (AuditMode) String 

func (m AuditMode) String() string

func (AuditMode) TelemetryName 

func (m AuditMode) TelemetryName() string

TelemetryName returns a friendly string for use in telemetry that represents the AuditMode.

type Backup 

type Backup struct {
	Targets *TargetList

	// To is set to the root directory of the backup (called the <destination> in
	// the docs).
	To StringOrPlaceholderOptList

	// IncrementalFrom is only set for the old 'BACKUP .... TO ...' syntax.
	IncrementalFrom Exprs

	AsOf    AsOfClause
	Options BackupOptions

	// Nested is set to true when the user creates a backup with
	//`BACKUP ... INTO... ` syntax.
	Nested bool

	// AppendToLatest is set to true if the user creates a backup with
	//`BACKUP...INTO LATEST...`
	AppendToLatest bool

	// Subdir may be set by the parser when the SQL query is of the form `BACKUP
	// INTO 'subdir' IN...`. Alternatively, if Nested is true but a subdir was not
	// explicitly specified by the user, then this will be set during BACKUP
	// planning once the destination has been resolved.
	Subdir Expr
}

Backup represents a BACKUP statement.

func (Backup) Coverage 

func (node Backup) Coverage() DescriptorCoverage

Coverage return the coverage (all vs requested).

func (*Backup) Format 

func (node *Backup) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*Backup) StatementReturnType 

func (*Backup) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*Backup) StatementTag 

func (*Backup) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*Backup) StatementType 

func (*Backup) StatementType() StatementType

StatementType implements the Statement interface.

func (*Backup) String 

func (n *Backup) String() string

type BackupDetails 

type BackupDetails int

BackupDetails represents the type of details to display for a SHOW BACKUP statement. 

const (
	// BackupDefaultDetails identifies a bare SHOW BACKUP statement.
	BackupDefaultDetails BackupDetails = iota
	// BackupRangeDetails identifies a SHOW BACKUP RANGES statement.
	BackupRangeDetails
	// BackupFileDetails identifies a SHOW BACKUP FILES statement.
	BackupFileDetails
	// BackupManifestAsJSON displays full backup manifest as json
	BackupManifestAsJSON
)

type BackupKMS 

type BackupKMS struct {
	NewKMSURI StringOrPlaceholderOptList
	OldKMSURI StringOrPlaceholderOptList
}

BackupKMS represents possible options used when altering a backup KMS

type BackupOptions 

type BackupOptions struct {
	CaptureRevisionHistory bool
	EncryptionPassphrase   Expr
	Detached               bool
	EncryptionKMSURI       StringOrPlaceholderOptList
	IncrementalStorage     StringOrPlaceholderOptList
}

BackupOptions describes options for the BACKUP execution.

func (*BackupOptions) CombineWith 

func (o *BackupOptions) CombineWith(other *BackupOptions) error

CombineWith merges other backup options into this backup options struct. An error is returned if the same option merged multiple times.

func (*BackupOptions) Format 

func (o *BackupOptions) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface

func (BackupOptions) IsDefault 

func (o BackupOptions) IsDefault() bool

IsDefault returns true if this backup options struct has default value.

type BeginTransaction 

type BeginTransaction struct {
	Modes TransactionModes
}

BeginTransaction represents a BEGIN statement

func (*BeginTransaction) Format 

func (node *BeginTransaction) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*BeginTransaction) StatementReturnType 

func (*BeginTransaction) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*BeginTransaction) StatementTag 

func (*BeginTransaction) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*BeginTransaction) StatementType 

func (*BeginTransaction) StatementType() StatementType

StatementType implements the Statement interface.

func (*BeginTransaction) String 

func (n *BeginTransaction) String() string

type BinOp 

type BinOp struct {
	LeftType          *types.T
	RightType         *types.T
	ReturnType        *types.T
	NullableArgs      bool
	Fn                TwoArgFn
	Volatility        Volatility
	PreferredOverload bool
	// contains filtered or unexported fields
}

BinOp is a binary operator.

type BinaryExpr 

type BinaryExpr struct {
	Operator    treebin.BinaryOperator
	Left, Right Expr

	Fn *BinOp
	// contains filtered or unexported fields
}

BinaryExpr represents a binary value expression.

func NewTypedBinaryExpr 

func NewTypedBinaryExpr(
	op treebin.BinaryOperator, left, right TypedExpr, typ *types.T,
) *BinaryExpr

NewTypedBinaryExpr returns a new BinaryExpr that is well-typed.

func (*BinaryExpr) Eval 

func (expr *BinaryExpr) Eval(ctx *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*BinaryExpr) Format 

func (node *BinaryExpr) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*BinaryExpr) ResolvedBinOp 

func (node *BinaryExpr) ResolvedBinOp() *BinOp

ResolvedBinOp returns the resolved binary op overload; can only be called after Resolve (which happens during TypeCheck).

func (BinaryExpr) ResolvedType 

func (ta BinaryExpr) ResolvedType() *types.T

func (*BinaryExpr) String 

func (node *BinaryExpr) String() string

func (*BinaryExpr) TypeCheck 

func (expr *BinaryExpr) TypeCheck(
	ctx context.Context, semaCtx *SemaContext, desired *types.T,
) (TypedExpr, error)

TypeCheck implements the Expr interface.

func (*BinaryExpr) TypedLeft 

func (node *BinaryExpr) TypedLeft() TypedExpr

TypedLeft returns the BinaryExpr's left expression as a TypedExpr.

func (*BinaryExpr) TypedRight 

func (node *BinaryExpr) TypedRight() TypedExpr

TypedRight returns the BinaryExpr's right expression as a TypedExpr.

func (*BinaryExpr) Walk 

func (expr *BinaryExpr) Walk(v Visitor) Expr

Walk implements the Expr interface.

type CCLOnlyStatement 

type CCLOnlyStatement interface {
	// contains filtered or unexported methods
}

CCLOnlyStatement is a marker interface for statements that require a CCL binary for successful planning or execution. It is used to enhance error messages when attempting to use these statements in non-CCL binaries.

type CTE 

type CTE struct {
	Name AliasClause
	Mtr  MaterializeClause
	Stmt Statement
}

CTE represents a common table expression inside of a WITH clause.

type CallbackValueGenerator 

type CallbackValueGenerator struct {
	// contains filtered or unexported fields
}

CallbackValueGenerator is a ValueGenerator that calls a supplied callback for producing the values. To be used with EvalContextTestingKnobs.CallbackGenerators.

func (*CallbackValueGenerator) Close 

func (c *CallbackValueGenerator) Close(_ context.Context)

Close is part of the ValueGenerator interface.

func (*CallbackValueGenerator) ResolvedType 

func (c *CallbackValueGenerator) ResolvedType() *types.T

ResolvedType is part of the ValueGenerator interface.

func (*CallbackValueGenerator) Values 

func (c *CallbackValueGenerator) Values() (Datums, error)

Values is part of the ValueGenerator interface.

type CancelQueries 

type CancelQueries struct {
	Queries  *Select
	IfExists bool
}

CancelQueries represents a CANCEL QUERIES statement.

func (*CancelQueries) Format 

func (node *CancelQueries) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*CancelQueries) StatementReturnType 

func (*CancelQueries) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*CancelQueries) StatementTag 

func (*CancelQueries) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*CancelQueries) StatementType 

func (*CancelQueries) StatementType() StatementType

StatementType implements the Statement interface.

func (*CancelQueries) String 

func (n *CancelQueries) String() string

type CancelSessions 

type CancelSessions struct {
	Sessions *Select
	IfExists bool
}

CancelSessions represents a CANCEL SESSIONS statement.

func (*CancelSessions) Format 

func (node *CancelSessions) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*CancelSessions) StatementReturnType 

func (*CancelSessions) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*CancelSessions) StatementTag 

func (*CancelSessions) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*CancelSessions) StatementType 

func (*CancelSessions) StatementType() StatementType

StatementType implements the Statement interface.

func (*CancelSessions) String 

func (n *CancelSessions) String() string

type CannedOptPlan 

type CannedOptPlan struct {
	Plan string
}

CannedOptPlan is used as the AST for a PREPARE .. AS OPT PLAN statement. This is a testing facility that allows execution (and benchmarking) of specific plans. See exprgen package for more information on the syntax.

func (*CannedOptPlan) Format 

func (node *CannedOptPlan) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*CannedOptPlan) StatementReturnType 

func (*CannedOptPlan) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*CannedOptPlan) StatementTag 

func (*CannedOptPlan) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*CannedOptPlan) StatementType 

func (*CannedOptPlan) StatementType() StatementType

StatementType implements the Statement interface.

func (*CannedOptPlan) String 

func (n *CannedOptPlan) String() string

type CaseExpr 

type CaseExpr struct {
	Expr  Expr
	Whens []*When
	Else  Expr
	// contains filtered or unexported fields
}

CaseExpr represents a CASE expression.

func NewTypedCaseExpr 

func NewTypedCaseExpr(
	expr TypedExpr, whens []*When, elseStmt TypedExpr, typ *types.T,
) (*CaseExpr, error)

NewTypedCaseExpr returns a new CaseExpr that is verified to be well-typed.

func (*CaseExpr) Eval 

func (expr *CaseExpr) Eval(ctx *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*CaseExpr) Format 

func (node *CaseExpr) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (CaseExpr) ResolvedType 

func (ta CaseExpr) ResolvedType() *types.T

func (*CaseExpr) String 

func (node *CaseExpr) String() string

func (*CaseExpr) TypeCheck 

func (expr *CaseExpr) TypeCheck(
	ctx context.Context, semaCtx *SemaContext, desired *types.T,
) (TypedExpr, error)

TypeCheck implements the Expr interface.

func (*CaseExpr) Walk 

func (expr *CaseExpr) Walk(v Visitor) Expr

Walk implements the Expr interface.

type CaseMode 

type CaseMode int

CaseMode directs which casing mode to use. 

const (
	// LowerCase transforms case-insensitive strings (like SQL keywords) to lowercase.
	LowerCase CaseMode = 0
	// UpperCase transforms case-insensitive strings (like SQL keywords) to uppercase.
	UpperCase CaseMode = 1
)

type CastContext 

type CastContext uint8

CastContext represents the contexts in which a cast can be performed. There are three types of cast contexts: explicit, assignment, and implicit. Not all casts can be performed in all contexts. See the description of each context below for more details.

The concept of cast contexts is taken directly from Postgres's cast behavior. More information can be found in the Postgres documentation on type conversion: https://www.postgresql.org/docs/current/typeconv.html 

const (

	// CastContextExplicit is a cast performed explicitly with the syntax
	// CAST(x AS T) or x::T.
	CastContextExplicit CastContext
	// CastContextAssignment is a cast implicitly performed during an INSERT,
	// UPSERT, or UPDATE statement.
	CastContextAssignment
	// CastContextImplicit is a cast performed implicitly. For example, the DATE
	// below is implicitly cast to a TIMESTAMPTZ so that the values can be
	// compared.
	//
	//   SELECT '2021-01-10'::DATE < now()
	//
	CastContextImplicit
)

func (CastContext) String 

func (cc CastContext) String() string

String returns the representation of CastContext as a string.

type CastExpr 

type CastExpr struct {
	Expr Expr
	Type ResolvableTypeReference

	SyntaxMode castSyntaxMode
	// contains filtered or unexported fields
}

CastExpr represents a CAST(expr AS type) expression.

func NewTypedCastExpr 

func NewTypedCastExpr(expr TypedExpr, typ *types.T) *CastExpr

NewTypedCastExpr returns a new CastExpr that is verified to be well-typed.

func (*CastExpr) Eval 

func (expr *CastExpr) Eval(ctx *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*CastExpr) Format 

func (node *CastExpr) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (CastExpr) ResolvedType 

func (ta CastExpr) ResolvedType() *types.T

func (*CastExpr) String 

func (node *CastExpr) String() string

func (*CastExpr) TypeCheck 

func (expr *CastExpr) TypeCheck(
	ctx context.Context, semaCtx *SemaContext, _ *types.T,
) (TypedExpr, error)

TypeCheck implements the Expr interface.

func (*CastExpr) Walk 

func (expr *CastExpr) Walk(v Visitor) Expr

Walk implements the Expr interface.

type ChangefeedTarget 

type ChangefeedTarget struct {
	TableName  TablePattern
	FamilyName Name
}

ChangefeedTarget represents a database object to be watched by a changefeed.

func (*ChangefeedTarget) Format 

func (ct *ChangefeedTarget) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type ChangefeedTargets 

type ChangefeedTargets []ChangefeedTarget

ChangefeedTargets represents a list of database objects to be watched by a changefeed.

func (*ChangefeedTargets) Format 

func (cts *ChangefeedTargets) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type CheckConstraintTableDef 

type CheckConstraintTableDef struct {
	Name        Name
	Expr        Expr
	Hidden      bool
	IfNotExists bool
}

CheckConstraintTableDef represents a check constraint within a CREATE TABLE statement.

func (*CheckConstraintTableDef) Format 

func (node *CheckConstraintTableDef) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*CheckConstraintTableDef) SetIfNotExists 

func (node *CheckConstraintTableDef) SetIfNotExists()

SetIfNotExists implements the ConstraintTableDef interface.

func (*CheckConstraintTableDef) SetName 

func (node *CheckConstraintTableDef) SetName(name Name)

SetName implements the ConstraintTableDef interface.

type ClientNoticeSender 

type ClientNoticeSender interface {
	// BufferClientNotice buffers the notice to send to the client.
	// This is flushed before the connection is closed.
	BufferClientNotice(ctx context.Context, notice pgnotice.Notice)
}

ClientNoticeSender is a limited interface to send notices to the client.

TODO(knz): as of this writing, the implementations of this interface only work on the gateway node (i.e. not from distributed processors).

type CloseCursor 

type CloseCursor struct {
	Name Name
	All  bool
}

CloseCursor represents a CLOSE statement.

func (CloseCursor) Format 

func (c CloseCursor) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*CloseCursor) StatementReturnType 

func (*CloseCursor) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*CloseCursor) StatementTag 

func (*CloseCursor) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*CloseCursor) StatementType 

func (*CloseCursor) StatementType() StatementType

StatementType implements the Statement interface.

func (*CloseCursor) String 

func (n *CloseCursor) String() string

type CmpOp 

type CmpOp struct {
	LeftType  *types.T
	RightType *types.T

	// Datum return type is a union between *DBool and dNull.
	Fn TwoArgFn

	// If NullableArgs is false, the operator returns NULL
	// whenever either argument is NULL.
	NullableArgs bool

	Volatility Volatility

	PreferredOverload bool
	// contains filtered or unexported fields
}

CmpOp is a comparison operator.

type CoalesceExpr 

type CoalesceExpr struct {
	Name  string
	Exprs Exprs
	// contains filtered or unexported fields
}

CoalesceExpr represents a COALESCE or IFNULL expression.

func NewTypedCoalesceExpr 

func NewTypedCoalesceExpr(typedExprs TypedExprs, typ *types.T) *CoalesceExpr

NewTypedCoalesceExpr returns a CoalesceExpr that is well-typed.

func (*CoalesceExpr) Eval 

func (expr *CoalesceExpr) Eval(ctx *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*CoalesceExpr) Format 

func (node *CoalesceExpr) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (CoalesceExpr) ResolvedType 

func (ta CoalesceExpr) ResolvedType() *types.T

func (*CoalesceExpr) String 

func (node *CoalesceExpr) String() string

func (*CoalesceExpr) TypeCheck 

func (expr *CoalesceExpr) TypeCheck(
	ctx context.Context, semaCtx *SemaContext, desired *types.T,
) (TypedExpr, error)

TypeCheck implements the Expr interface.

func (*CoalesceExpr) TypedExprAt 

func (node *CoalesceExpr) TypedExprAt(idx int) TypedExpr

TypedExprAt returns the expression at the specified index as a TypedExpr.

func (*CoalesceExpr) Walk 

func (expr *CoalesceExpr) Walk(v Visitor) Expr

Walk implements the Expr interface.

type CollateExpr 

type CollateExpr struct {
	Expr   Expr
	Locale string
	// contains filtered or unexported fields
}

CollateExpr represents an (expr COLLATE locale) expression.

func NewTypedCollateExpr 

func NewTypedCollateExpr(expr TypedExpr, locale string) *CollateExpr

NewTypedCollateExpr returns a new CollateExpr that is verified to be well-typed.

func (*CollateExpr) Eval 

func (expr *CollateExpr) Eval(ctx *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*CollateExpr) Format 

func (node *CollateExpr) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (CollateExpr) ResolvedType 

func (ta CollateExpr) ResolvedType() *types.T

func (*CollateExpr) String 

func (node *CollateExpr) String() string

func (*CollateExpr) TypeCheck 

func (expr *CollateExpr) TypeCheck(
	ctx context.Context, semaCtx *SemaContext, desired *types.T,
) (TypedExpr, error)

TypeCheck implements the Expr interface.

func (*CollateExpr) Walk 

func (expr *CollateExpr) Walk(v Visitor) Expr

Walk implements the Expr interface.

type CollationEnvironment 

type CollationEnvironment struct {
	// contains filtered or unexported fields
}

CollationEnvironment stores the state needed by NewDCollatedString to construct collation keys efficiently.

type ColumnAccessExpr 

type ColumnAccessExpr struct {
	Expr Expr

	// ByIndex, if set, indicates that the access is using a numeric
	// column reference and ColIndex below is already set.
	ByIndex bool

	// ColName is the name of the column to access. Empty if ByIndex is
	// set.
	ColName Name

	// ColIndex indicates the index of the column in the tuple. This is
	// either:
	// - set during type checking based on the label in ColName if
	//   ByIndex is false,
	// - or checked for validity during type checking if ByIndex is true.
	// The first column in the tuple is at index 0. The input
	// syntax (E).@N populates N-1 in this field.
	ColIndex int
	// contains filtered or unexported fields
}

ColumnAccessExpr represents (E).x expressions. Specifically, it allows accessing the column(s) from a Set Returning Function.

func NewTypedColumnAccessExpr 

func NewTypedColumnAccessExpr(expr TypedExpr, colName Name, colIdx int) *ColumnAccessExpr

NewTypedColumnAccessExpr creates a pre-typed ColumnAccessExpr. A by-index ColumnAccessExpr can be specified by passing an empty string as colName.

func (*ColumnAccessExpr) Eval 

func (expr *ColumnAccessExpr) Eval(ctx *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*ColumnAccessExpr) Format 

func (node *ColumnAccessExpr) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (ColumnAccessExpr) ResolvedType 

func (ta ColumnAccessExpr) ResolvedType() *types.T

func (*ColumnAccessExpr) String 

func (node *ColumnAccessExpr) String() string

func (*ColumnAccessExpr) TypeCheck 

func (expr *ColumnAccessExpr) TypeCheck(
	ctx context.Context, semaCtx *SemaContext, desired *types.T,
) (TypedExpr, error)

TypeCheck implements the Expr interface.

func (*ColumnAccessExpr) Walk 

func (expr *ColumnAccessExpr) Walk(v Visitor) Expr

Walk implements the Expr interface.

type ColumnCheckConstraint 

type ColumnCheckConstraint struct {
	Expr Expr
}

ColumnCheckConstraint represents either a check on a column.

type ColumnCollation 

type ColumnCollation string

ColumnCollation represents a COLLATE clause for a column.

type ColumnComputedDef 

type ColumnComputedDef struct {
	Expr    Expr
	Virtual bool
}

ColumnComputedDef represents the description of a computed column.

type ColumnDefault 

type ColumnDefault struct {
	Expr Expr
}

ColumnDefault represents a DEFAULT clause for a column.

type ColumnFKConstraint 

type ColumnFKConstraint struct {
	Table   TableName
	Col     Name // empty-string means use PK
	Actions ReferenceActions
	Match   CompositeKeyMatchMethod
}

ColumnFKConstraint represents a FK-constaint on a column.

type ColumnFamilyConstraint 

type ColumnFamilyConstraint struct {
	Family      Name
	Create      bool
	IfNotExists bool
}

ColumnFamilyConstraint represents FAMILY on a column.

type ColumnID 

type ColumnID = catid.ColumnID

ColumnID is a custom type for ColumnDescriptor IDs.

type ColumnItem 

type ColumnItem struct {
	// TableName holds the table prefix, if the name refers to a column. It is
	// optional.
	//
	// This uses UnresolvedObjectName because we need to preserve the
	// information about which parts were initially specified in the SQL
	// text. ColumnItems are intermediate data structures anyway, that
	// still need to undergo name resolution.
	TableName *UnresolvedObjectName
	// ColumnName names the designated column.
	ColumnName Name
}

ColumnItem corresponds to the name of a column in an expression.

func MakeColumnItem 

func MakeColumnItem(tn *TableName, colName Name) ColumnItem

MakeColumnItem constructs a column item from an already valid TableName. This can be used for e.g. pretty-printing.

func NewColumnItem 

func NewColumnItem(tn *TableName, colName Name) *ColumnItem

NewColumnItem constructs a column item from an already valid TableName. This can be used for e.g. pretty-printing.

func (*ColumnItem) Column 

func (c *ColumnItem) Column() string

Column retrieves the unqualified column name.

func (*ColumnItem) Eval 

func (expr *ColumnItem) Eval(ctx *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*ColumnItem) Format 

func (c *ColumnItem) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface. If this is updated, then dummyColumnItem.Format should be updated as well.

func (*ColumnItem) NormalizeVarName 

func (c *ColumnItem) NormalizeVarName() (VarName, error)

NormalizeVarName implements the VarName interface.

func (*ColumnItem) ResolvedType 

func (c *ColumnItem) ResolvedType() *types.T

ResolvedType implements the TypedExpr interface.

func (*ColumnItem) String 

func (c *ColumnItem) String() string

func (*ColumnItem) TypeCheck 

func (expr *ColumnItem) TypeCheck(
	_ context.Context, _ *SemaContext, desired *types.T,
) (TypedExpr, error)

TypeCheck implements the Expr interface. This function has a valid implementation only for testing within this package. During query execution, ColumnItems are replaced to IndexedVars prior to type checking.

func (*ColumnItem) Variable 

func (c *ColumnItem) Variable()

Variable implements the VariableExpr interface.

Note that in common uses, ColumnItem ought to be replaced to an IndexedVar prior to evaluation.

func (*ColumnItem) Walk 

func (expr *ColumnItem) Walk(_ Visitor) Expr

Walk implements the Expr interface.

type ColumnMutationCmd 

type ColumnMutationCmd interface {
	AlterTableCmd
	GetColumn() Name
}

ColumnMutationCmd is the subset of AlterTableCmds that modify an existing column.

type ColumnOnUpdate 

type ColumnOnUpdate struct {
	Expr Expr
}

ColumnOnUpdate represents a ON UPDATE clause for a column.

type ColumnQualification 

type ColumnQualification interface {
	// contains filtered or unexported methods
}

ColumnQualification represents a constraint on a column.

type ColumnTableDef 

type ColumnTableDef struct {
	Name              Name
	Type              ResolvableTypeReference
	IsSerial          bool
	GeneratedIdentity struct {
		IsGeneratedAsIdentity   bool
		GeneratedAsIdentityType GeneratedIdentityType
		SeqOptions              SequenceOptions
	}
	Hidden   bool
	Nullable struct {
		Nullability    Nullability
		ConstraintName Name
	}
	PrimaryKey struct {
		IsPrimaryKey  bool
		Sharded       bool
		ShardBuckets  Expr
		StorageParams StorageParams
	}
	Unique struct {
		IsUnique       bool
		WithoutIndex   bool
		ConstraintName Name
	}
	DefaultExpr struct {
		Expr           Expr
		ConstraintName Name
	}
	OnUpdateExpr struct {
		Expr           Expr
		ConstraintName Name
	}
	CheckExprs []ColumnTableDefCheckExpr
	References struct {
		Table          *TableName
		Col            Name
		ConstraintName Name
		Actions        ReferenceActions
		Match          CompositeKeyMatchMethod
	}
	Computed struct {
		Computed bool
		Expr     Expr
		Virtual  bool
	}
	Family struct {
		Name        Name
		Create      bool
		IfNotExists bool
	}
}

ColumnTableDef represents a column definition within a CREATE TABLE statement.

func NewColumnTableDef 

func NewColumnTableDef(
	name Name,
	typRef ResolvableTypeReference,
	isSerial bool,
	qualifications []NamedColumnQualification,
) (*ColumnTableDef, error)

NewColumnTableDef constructs a column definition for a CreateTable statement.

func (*ColumnTableDef) Format 

func (node *ColumnTableDef) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ColumnTableDef) HasColumnFamily 

func (node *ColumnTableDef) HasColumnFamily() bool

HasColumnFamily returns if the ColumnTableDef has a column family.

func (*ColumnTableDef) HasDefaultExpr 

func (node *ColumnTableDef) HasDefaultExpr() bool

HasDefaultExpr returns if the ColumnTableDef has a default expression.

func (*ColumnTableDef) HasFKConstraint 

func (node *ColumnTableDef) HasFKConstraint() bool

HasFKConstraint returns if the ColumnTableDef has a foreign key constraint.

func (*ColumnTableDef) HasOnUpdateExpr 

func (node *ColumnTableDef) HasOnUpdateExpr() bool

HasOnUpdateExpr returns if the ColumnTableDef has an ON UPDATE expression.

func (*ColumnTableDef) IsComputed 

func (node *ColumnTableDef) IsComputed() bool

IsComputed returns if the ColumnTableDef is a computed column.

func (*ColumnTableDef) IsVirtual 

func (node *ColumnTableDef) IsVirtual() bool

IsVirtual returns if the ColumnTableDef is a virtual column.

func (*ColumnTableDef) String 

func (node *ColumnTableDef) String() string

String implements the fmt.Stringer interface.

type ColumnTableDefCheckExpr 

type ColumnTableDefCheckExpr struct {
	Expr           Expr
	ConstraintName Name
}

ColumnTableDefCheckExpr represents a check constraint on a column definition within a CREATE TABLE statement.

type CommentOnColumn 

type CommentOnColumn struct {
	*ColumnItem
	Comment *string
}

CommentOnColumn represents an COMMENT ON COLUMN statement.

func (*CommentOnColumn) Format 

func (n *CommentOnColumn) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*CommentOnColumn) StatementReturnType 

func (*CommentOnColumn) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*CommentOnColumn) StatementTag 

func (*CommentOnColumn) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*CommentOnColumn) StatementType 

func (*CommentOnColumn) StatementType() StatementType

StatementType implements the Statement interface.

func (*CommentOnColumn) String 

func (n *CommentOnColumn) String() string

type CommentOnConstraint 

type CommentOnConstraint struct {
	Constraint Name
	Table      *UnresolvedObjectName
	Comment    *string
}

CommentOnConstraint represents a COMMENT ON CONSTRAINT statement

func (*CommentOnConstraint) Format 

func (n *CommentOnConstraint) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*CommentOnConstraint) StatementReturnType 

func (*CommentOnConstraint) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*CommentOnConstraint) StatementTag 

func (*CommentOnConstraint) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*CommentOnConstraint) StatementType 

func (*CommentOnConstraint) StatementType() StatementType

StatementType implements the Statement interface.

func (*CommentOnConstraint) String 

func (n *CommentOnConstraint) String() string

type CommentOnDatabase 

type CommentOnDatabase struct {
	Name    Name
	Comment *string
}

CommentOnDatabase represents an COMMENT ON DATABASE statement.

func (*CommentOnDatabase) Format 

func (n *CommentOnDatabase) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*CommentOnDatabase) StatementReturnType 

func (*CommentOnDatabase) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*CommentOnDatabase) StatementTag 

func (*CommentOnDatabase) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*CommentOnDatabase) StatementType 

func (*CommentOnDatabase) StatementType() StatementType

StatementType implements the Statement interface.

func (*CommentOnDatabase) String 

func (n *CommentOnDatabase) String() string

type CommentOnIndex 

type CommentOnIndex struct {
	Index   TableIndexName
	Comment *string
}

CommentOnIndex represents a COMMENT ON INDEX statement.

func (*CommentOnIndex) Format 

func (n *CommentOnIndex) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*CommentOnIndex) StatementReturnType 

func (*CommentOnIndex) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*CommentOnIndex) StatementTag 

func (*CommentOnIndex) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*CommentOnIndex) StatementType 

func (*CommentOnIndex) StatementType() StatementType

StatementType implements the Statement interface.

func (*CommentOnIndex) String 

func (n *CommentOnIndex) String() string

type CommentOnSchema 

type CommentOnSchema struct {
	Name    Name
	Comment *string
}

CommentOnSchema represents an COMMENT ON SCHEMA statement.

func (*CommentOnSchema) Format 

func (n *CommentOnSchema) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*CommentOnSchema) StatementReturnType 

func (*CommentOnSchema) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*CommentOnSchema) StatementTag 

func (*CommentOnSchema) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*CommentOnSchema) StatementType 

func (*CommentOnSchema) StatementType() StatementType

StatementType implements the Statement interface.

func (*CommentOnSchema) String 

func (n *CommentOnSchema) String() string

type CommentOnTable 

type CommentOnTable struct {
	Table   *UnresolvedObjectName
	Comment *string
}

CommentOnTable represents an COMMENT ON TABLE statement.

func (*CommentOnTable) Format 

func (n *CommentOnTable) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*CommentOnTable) StatementReturnType 

func (*CommentOnTable) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*CommentOnTable) StatementTag 

func (*CommentOnTable) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*CommentOnTable) StatementType 

func (*CommentOnTable) StatementType() StatementType

StatementType implements the Statement interface.

func (*CommentOnTable) String 

func (n *CommentOnTable) String() string

type CommitTransaction 

type CommitTransaction struct{}

CommitTransaction represents a COMMIT statement.

func (*CommitTransaction) Format 

func (node *CommitTransaction) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*CommitTransaction) StatementReturnType 

func (*CommitTransaction) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*CommitTransaction) StatementTag 

func (*CommitTransaction) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*CommitTransaction) StatementType 

func (*CommitTransaction) StatementType() StatementType

StatementType implements the Statement interface.

func (*CommitTransaction) String 

func (n *CommitTransaction) String() string

type CommonLookupFlags 

type CommonLookupFlags struct {
	// if required is set, lookup will return an error if the item is not found.
	Required bool
	// RequireMutable specifies whether to return a mutable descriptor.
	RequireMutable bool
	// AvoidLeased, if set, avoid the leased (possibly stale) version of the
	// descriptor. It must be set when callers want consistent reads.
	AvoidLeased bool
	// IncludeOffline specifies if offline descriptors should be visible.
	IncludeOffline bool
	// IncludeOffline specifies if dropped descriptors should be visible.
	IncludeDropped bool
	// AvoidSynthetic specifies if the any synthetic descriptors will be ignored.
	AvoidSynthetic bool
}

CommonLookupFlags is the common set of flags for the various accessor interfaces.

type CompactEngineSpanFunc 

type CompactEngineSpanFunc func(
	ctx context.Context, nodeID, storeID int32, startKey, endKey []byte,
) error

CompactEngineSpanFunc is used to compact an engine key span at the given (nodeID, storeID). If we add more overloads to the compact_span builtin, this parameter list should be changed to a struct union to accommodate those overloads.

type ComparisonExpr 

type ComparisonExpr struct {
	Operator    treecmp.ComparisonOperator
	SubOperator treecmp.ComparisonOperator // used for array operators (when Operator is Any, Some, or All)
	Left, Right Expr

	Fn *CmpOp
	// contains filtered or unexported fields
}

ComparisonExpr represents a two-value comparison expression.

func NewTypedComparisonExpr 

func NewTypedComparisonExpr(op treecmp.ComparisonOperator, left, right TypedExpr) *ComparisonExpr

NewTypedComparisonExpr returns a new ComparisonExpr that is verified to be well-typed.

func NewTypedComparisonExprWithSubOp 

func NewTypedComparisonExprWithSubOp(
	op, subOp treecmp.ComparisonOperator, left, right TypedExpr,
) *ComparisonExpr

NewTypedComparisonExprWithSubOp returns a new ComparisonExpr that is verified to be well-typed.

func (*ComparisonExpr) Eval 

func (expr *ComparisonExpr) Eval(ctx *EvalContext) (Datum, error)

Eval implements the TypedExpr interface. Note: if you're modifying this function, please make sure to adjust colexeccmp.ComparisonExprAdapter implementations accordingly.

func (*ComparisonExpr) Format 

func (node *ComparisonExpr) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (ComparisonExpr) ResolvedType 

func (ta ComparisonExpr) ResolvedType() *types.T

func (*ComparisonExpr) String 

func (node *ComparisonExpr) String() string

func (*ComparisonExpr) TypeCheck 

func (expr *ComparisonExpr) TypeCheck(
	ctx context.Context, semaCtx *SemaContext, desired *types.T,
) (TypedExpr, error)

TypeCheck implements the Expr interface.

func (*ComparisonExpr) TypedLeft 

func (node *ComparisonExpr) TypedLeft() TypedExpr

TypedLeft returns the ComparisonExpr's left expression as a TypedExpr.

func (*ComparisonExpr) TypedRight 

func (node *ComparisonExpr) TypedRight() TypedExpr

TypedRight returns the ComparisonExpr's right expression as a TypedExpr.

func (*ComparisonExpr) Walk 

func (expr *ComparisonExpr) Walk(v Visitor) Expr

Walk implements the Expr interface.

type CompositeDatum 

type CompositeDatum interface {
	Datum
	// IsComposite returns true if this datum is not round-tripable in a key
	// encoding.
	IsComposite() bool
}

CompositeDatum is a Datum that may require composite encoding in indexes. Any Datum implementing this interface must also add itself to colinfo.HasCompositeKeyEncoding.

type CompositeKeyMatchMethod 

type CompositeKeyMatchMethod int

CompositeKeyMatchMethod is the algorithm use when matching composite keys. See https://sqlfmt/cockroach/issues/20305 or https://www.postgresql.org/docs/11/sql-createtable.html for details on the different composite foreign key matching methods. 

const (
	MatchSimple CompositeKeyMatchMethod = iota
	MatchFull
	MatchPartial // Note: PARTIAL not actually supported at this point.
)

The values for CompositeKeyMatchMethod.

func (CompositeKeyMatchMethod) String 

func (c CompositeKeyMatchMethod) String() string

type Constant 

type Constant interface {
	Expr
	// AvailableTypes returns the ordered set of types that the Constant is able to
	// be resolved into. The order of the type slice provides a notion of precedence,
	// with the first element in the ordering being the Constant's "natural type".
	AvailableTypes() []*types.T
	// DesirableTypes returns the ordered set of types that the constant would
	// prefer to be resolved into. As in AvailableTypes, the order of the returned
	// type slice provides a notion of precedence, with the first element in the
	// ordering being the Constant's "natural type." The function is meant to be
	// differentiated from AvailableTypes in that it will exclude certain types
	// that are possible, but not desirable.
	//
	// An example of this is a floating point numeric constant without a value
	// past the decimal point. It is possible to resolve this constant as a
	// decimal, but it is not desirable.
	DesirableTypes() []*types.T
	// ResolveAsType resolves the Constant as the specified type, or returns an
	// error if the Constant could not be resolved as that type. The method should
	// only be passed a type returned from AvailableTypes and should never be
	// called more than once for a given Constant.
	//
	// The returned expression is either a Datum or a CastExpr wrapping a Datum;
	// the latter is necessary for cases where the result would depend on the
	// context (like the timezone or the current time).
	ResolveAsType(context.Context, *SemaContext, *types.T) (TypedExpr, error)
}

Constant is an constant literal expression which may be resolved to more than one type.

type ConstantEvalVisitor 

type ConstantEvalVisitor struct {
	// contains filtered or unexported fields
}

ConstantEvalVisitor replaces constant TypedExprs with the result of Eval.

func MakeConstantEvalVisitor 

func MakeConstantEvalVisitor(ctx *EvalContext) ConstantEvalVisitor

MakeConstantEvalVisitor creates a ConstantEvalVisitor instance.

func (*ConstantEvalVisitor) Err 

func (v *ConstantEvalVisitor) Err() error

Err retrieves the error field in the ConstantEvalVisitor.

func (*ConstantEvalVisitor) VisitPost 

func (v *ConstantEvalVisitor) VisitPost(expr Expr) Expr

VisitPost implements the Visitor interface.

func (*ConstantEvalVisitor) VisitPre 

func (v *ConstantEvalVisitor) VisitPre(expr Expr) (recurse bool, newExpr Expr)

VisitPre implements the Visitor interface.

type ConstraintTableDef 

type ConstraintTableDef interface {
	TableDef

	// SetName replaces the name of the definition in-place. Used in the parser.
	SetName(name Name)

	// SetIfNotExists sets this definition as coming from an
	// ADD CONSTRAINT IF NOT EXISTS statement. Used in the parser.
	SetIfNotExists()
	// contains filtered or unexported methods
}

ConstraintTableDef represents a constraint definition within a CREATE TABLE statement.

type ControlJobs 

type ControlJobs struct {
	Jobs    *Select
	Command JobCommand
	Reason  Expr
}

ControlJobs represents a PAUSE/RESUME/CANCEL JOBS statement.

func (*ControlJobs) Format 

func (n *ControlJobs) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ControlJobs) StatementReturnType 

func (*ControlJobs) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ControlJobs) StatementTag 

func (n *ControlJobs) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ControlJobs) StatementType 

func (*ControlJobs) StatementType() StatementType

StatementType implements the Statement interface.

func (*ControlJobs) String 

func (n *ControlJobs) String() string

type ControlJobsForSchedules 

type ControlJobsForSchedules struct {
	Schedules *Select
	Command   JobCommand
}

ControlJobsForSchedules represents PAUSE/RESUME/CANCEL clause which applies job command to the jobs matching specified schedule(s).

func (*ControlJobsForSchedules) Format 

func (n *ControlJobsForSchedules) Format(ctx *FmtCtx)

Format implements NodeFormatter interface.

func (*ControlJobsForSchedules) StatementReturnType 

func (*ControlJobsForSchedules) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ControlJobsForSchedules) StatementTag 

func (n *ControlJobsForSchedules) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ControlJobsForSchedules) StatementType 

func (*ControlJobsForSchedules) StatementType() StatementType

StatementType implements the Statement interface.

func (*ControlJobsForSchedules) String 

func (n *ControlJobsForSchedules) String() string

type ControlJobsOfType 

type ControlJobsOfType struct {
	Type    string
	Command JobCommand
}

ControlJobsOfType represents PAUSE/RESUME/CANCEL clause which applies the job command to the job matching a specified type

func (*ControlJobsOfType) Format 

func (n *ControlJobsOfType) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ControlJobsOfType) StatementReturnType 

func (*ControlJobsOfType) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ControlJobsOfType) StatementTag 

func (n *ControlJobsOfType) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ControlJobsOfType) StatementType 

func (*ControlJobsOfType) StatementType() StatementType

StatementType implements the Statement interface.

func (*ControlJobsOfType) String 

func (n *ControlJobsOfType) String() string

type ControlSchedules 

type ControlSchedules struct {
	Schedules *Select
	Command   ScheduleCommand
}

ControlSchedules represents PAUSE/RESUME SCHEDULE statement.

func (*ControlSchedules) Format 

func (n *ControlSchedules) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ControlSchedules) StatementReturnType 

func (*ControlSchedules) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ControlSchedules) StatementTag 

func (n *ControlSchedules) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ControlSchedules) StatementType 

func (*ControlSchedules) StatementType() StatementType

StatementType implements the Statement interface.

func (*ControlSchedules) String 

func (n *ControlSchedules) String() string

type CopyFormat 

type CopyFormat int

CopyFormat identifies a COPY data format. 

const (
	CopyFormatText CopyFormat = iota
	CopyFormatBinary
	CopyFormatCSV
)

Valid values for CopyFormat.

type CopyFrom 

type CopyFrom struct {
	Table   TableName
	Columns NameList
	Stdin   bool
	Options CopyOptions
}

CopyFrom represents a COPY FROM statement.

func (*CopyFrom) Format 

func (node *CopyFrom) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*CopyFrom) StatementReturnType 

func (*CopyFrom) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*CopyFrom) StatementTag 

func (*CopyFrom) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*CopyFrom) StatementType 

func (*CopyFrom) StatementType() StatementType

StatementType implements the Statement interface.

func (*CopyFrom) String 

func (n *CopyFrom) String() string

type CopyOptions 

type CopyOptions struct {
	Destination Expr
	CopyFormat  CopyFormat
	Delimiter   Expr
	Null        Expr
}

CopyOptions describes options for COPY execution.

func (*CopyOptions) CombineWith 

func (o *CopyOptions) CombineWith(other *CopyOptions) error

CombineWith merges other options into this struct. An error is returned if the same option merged multiple times.

func (*CopyOptions) Format 

func (o *CopyOptions) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface

func (CopyOptions) IsDefault 

func (o CopyOptions) IsDefault() bool

IsDefault returns true if this struct has default value.

type CreateChangefeed 

type CreateChangefeed struct {
	Targets ChangefeedTargets
	SinkURI Expr
	Options KVOptions
}

CreateChangefeed represents a CREATE CHANGEFEED statement.

func (*CreateChangefeed) Format 

func (node *CreateChangefeed) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*CreateChangefeed) StatementReturnType 

func (*CreateChangefeed) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*CreateChangefeed) StatementTag 

func (n *CreateChangefeed) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*CreateChangefeed) StatementType 

func (*CreateChangefeed) StatementType() StatementType

StatementType implements the Statement interface.

func (*CreateChangefeed) String 

func (n *CreateChangefeed) String() string

type CreateDatabase 

type CreateDatabase struct {
	IfNotExists     bool
	Name            Name
	Template        string
	Encoding        string
	Collate         string
	CType           string
	ConnectionLimit int32
	PrimaryRegion   Name
	Regions         NameList
	SurvivalGoal    SurvivalGoal
	Placement       DataPlacement
	Owner           RoleSpec
}

CreateDatabase represents a CREATE DATABASE statement.

func (*CreateDatabase) Format 

func (node *CreateDatabase) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*CreateDatabase) StatementReturnType 

func (*CreateDatabase) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*CreateDatabase) StatementTag 

func (*CreateDatabase) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*CreateDatabase) StatementType 

func (*CreateDatabase) StatementType() StatementType

StatementType implements the Statement interface.

func (*CreateDatabase) String 

func (n *CreateDatabase) String() string

type CreateExtension 

type CreateExtension struct {
	Name        string
	IfNotExists bool
}

CreateExtension represents a CREATE EXTENSION statement.

func (*CreateExtension) Format 

func (node *CreateExtension) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*CreateExtension) StatementReturnType 

func (*CreateExtension) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*CreateExtension) StatementTag 

func (*CreateExtension) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*CreateExtension) StatementType 

func (*CreateExtension) StatementType() StatementType

StatementType implements the Statement interface.

func (*CreateExtension) String 

func (n *CreateExtension) String() string

type CreateIndex 

type CreateIndex struct {
	Name        Name
	Table       TableName
	Unique      bool
	Inverted    bool
	IfNotExists bool
	Columns     IndexElemList
	Sharded     *ShardedIndexDef
	// Extra columns to be stored together with the indexed ones as an optimization
	// for improved reading performance.
	Storing          NameList
	PartitionByIndex *PartitionByIndex
	StorageParams    StorageParams
	Predicate        Expr
	Concurrently     bool
}

CreateIndex represents a CREATE INDEX statement.

func (*CreateIndex) Format 

func (node *CreateIndex) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*CreateIndex) StatementReturnType 

func (*CreateIndex) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*CreateIndex) StatementTag 

func (*CreateIndex) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*CreateIndex) StatementType 

func (*CreateIndex) StatementType() StatementType

StatementType implements the Statement interface.

func (*CreateIndex) String 

func (n *CreateIndex) String() string

type CreateRole 

type CreateRole struct {
	Name        RoleSpec
	IfNotExists bool
	IsRole      bool
	KVOptions   KVOptions
}

CreateRole represents a CREATE ROLE statement.

func (*CreateRole) Format 

func (node *CreateRole) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*CreateRole) StatementReturnType 

func (*CreateRole) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*CreateRole) StatementTag 

func (*CreateRole) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*CreateRole) StatementType 

func (*CreateRole) StatementType() StatementType

StatementType implements the Statement interface.

func (*CreateRole) String 

func (n *CreateRole) String() string

type CreateSchema 

type CreateSchema struct {
	IfNotExists bool
	AuthRole    RoleSpec
	Schema      ObjectNamePrefix
}

CreateSchema represents a CREATE SCHEMA statement.

func (*CreateSchema) Format 

func (node *CreateSchema) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*CreateSchema) StatementReturnType 

func (n *CreateSchema) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*CreateSchema) StatementTag 

func (n *CreateSchema) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*CreateSchema) StatementType 

func (*CreateSchema) StatementType() StatementType

StatementType implements the Statement interface.

func (*CreateSchema) String 

func (n *CreateSchema) String() string

type CreateSequence 

type CreateSequence struct {
	IfNotExists bool
	Name        TableName
	Persistence Persistence
	Options     SequenceOptions
}

CreateSequence represents a CREATE SEQUENCE statement.

func (*CreateSequence) Format 

func (node *CreateSequence) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*CreateSequence) StatementReturnType 

func (*CreateSequence) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*CreateSequence) StatementTag 

func (*CreateSequence) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*CreateSequence) StatementType 

func (*CreateSequence) StatementType() StatementType

StatementType implements the Statement interface.

func (*CreateSequence) String 

func (n *CreateSequence) String() string

type CreateStats 

type CreateStats struct {
	Name        Name
	ColumnNames NameList
	Table       TableExpr
	Options     CreateStatsOptions
}

CreateStats represents a CREATE STATISTICS statement.

func (*CreateStats) Format 

func (node *CreateStats) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*CreateStats) StatementReturnType 

func (*CreateStats) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*CreateStats) StatementTag 

func (*CreateStats) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*CreateStats) StatementType 

func (*CreateStats) StatementType() StatementType

StatementType implements the Statement interface.

func (*CreateStats) String 

func (n *CreateStats) String() string

type CreateStatsOptions 

type CreateStatsOptions struct {
	// Throttling enables throttling and indicates the fraction of time we are
	// idling (between 0 and 1).
	Throttling float64

	// AsOf performs a historical read at the given timestamp.
	// Note that the timestamp will be moved up during the operation if it gets
	// too old (in order to avoid problems with TTL expiration).
	AsOf AsOfClause
}

CreateStatsOptions contains options for CREATE STATISTICS.

func (*CreateStatsOptions) CombineWith 

func (o *CreateStatsOptions) CombineWith(other *CreateStatsOptions) error

CombineWith combines two options, erroring out if the two options contain incompatible settings.

func (*CreateStatsOptions) Empty 

func (o *CreateStatsOptions) Empty() bool

Empty returns true if no options were provided.

func (*CreateStatsOptions) Format 

func (o *CreateStatsOptions) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type CreateTable 

type CreateTable struct {
	IfNotExists      bool
	Table            TableName
	PartitionByTable *PartitionByTable
	Persistence      Persistence
	StorageParams    StorageParams
	OnCommit         CreateTableOnCommitSetting
	// In CREATE...AS queries, Defs represents a list of ColumnTableDefs, one for
	// each column, and a ConstraintTableDef for each constraint on a subset of
	// these columns.
	Defs     TableDefs
	AsSource *Select
	Locality *Locality
}

CreateTable represents a CREATE TABLE statement.

func (*CreateTable) As 

func (node *CreateTable) As() bool

As returns true if this table represents a CREATE TABLE ... AS statement, false otherwise.

func (*CreateTable) AsHasUserSpecifiedPrimaryKey 

func (node *CreateTable) AsHasUserSpecifiedPrimaryKey() bool

AsHasUserSpecifiedPrimaryKey returns true if a CREATE TABLE ... AS statement has a PRIMARY KEY constraint specified.

func (*CreateTable) Format 

func (node *CreateTable) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*CreateTable) FormatBody 

func (node *CreateTable) FormatBody(ctx *FmtCtx)

FormatBody formats the "body" of the create table definition - everything but the CREATE TABLE tableName part.

func (*CreateTable) HoistConstraints 

func (node *CreateTable) HoistConstraints()

HoistConstraints finds column check and foreign key constraints defined inline with their columns and makes them table-level constraints, stored in n.Defs. For example, the foreign key constraint in 

CREATE TABLE foo (a INT REFERENCES bar(a))

gets pulled into a top-level constraint like: 

CREATE TABLE foo (a INT, FOREIGN KEY (a) REFERENCES bar(a))

Similarly, the CHECK constraint in 

CREATE TABLE foo (a INT CHECK (a < 1), b INT)

gets pulled into a top-level constraint like: 

CREATE TABLE foo (a INT, b INT, CHECK (a < 1))

Note that some SQL databases require that a constraint attached to a column to refer only to the column it is attached to. We follow Postgres' behavior, however, in omitting this restriction by blindly hoisting all column constraints. For example, the following table definition is accepted in CockroachDB and Postgres, but not necessarily other SQL databases: 

CREATE TABLE foo (a INT CHECK (a < b), b INT)

Unique constraints are not hoisted.

func (*CreateTable) StatementReturnType 

func (n *CreateTable) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*CreateTable) StatementTag 

func (n *CreateTable) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*CreateTable) StatementType 

func (*CreateTable) StatementType() StatementType

StatementType implements the Statement interface.

func (*CreateTable) String 

func (n *CreateTable) String() string

type CreateTableOnCommitSetting 

type CreateTableOnCommitSetting uint32

CreateTableOnCommitSetting represents the CREATE TABLE ... ON COMMIT <action> parameters. 

const (
	// CreateTableOnCommitUnset indicates that ON COMMIT was unset.
	CreateTableOnCommitUnset CreateTableOnCommitSetting = iota
	// CreateTableOnCommitPreserveRows indicates that ON COMMIT PRESERVE ROWS was set.
	CreateTableOnCommitPreserveRows
)

type CreateType 

type CreateType struct {
	TypeName *UnresolvedObjectName
	Variety  CreateTypeVariety
	// EnumLabels is set when this represents a CREATE TYPE ... AS ENUM statement.
	EnumLabels EnumValueList
	// IfNotExists is true if IF NOT EXISTS was requested.
	IfNotExists bool
}

CreateType represents a CREATE TYPE statement.

func (*CreateType) Format 

func (node *CreateType) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*CreateType) StatementReturnType 

func (*CreateType) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*CreateType) StatementTag 

func (*CreateType) StatementTag() string

StatementTag implements the Statement interface.

func (*CreateType) StatementType 

func (*CreateType) StatementType() StatementType

StatementType implements the Statement interface.

func (*CreateType) String 

func (node *CreateType) String() string

type CreateTypeVariety 

type CreateTypeVariety int

CreateTypeVariety represents a particular variety of user defined types. 

const (

	// Enum represents an ENUM user defined type.
	Enum CreateTypeVariety
	// Composite represents a composite user defined type.
	Composite
	// Range represents a RANGE user defined type.
	Range
	// Base represents a base user defined type.
	Base
	// Shell represents a shell user defined type.
	Shell
	// Domain represents a DOMAIN user defined type.
	Domain
)

func (CreateTypeVariety) String 

func (i CreateTypeVariety) String() string

type CreateView 

type CreateView struct {
	Name         TableName
	ColumnNames  NameList
	AsSource     *Select
	IfNotExists  bool
	Persistence  Persistence
	Replace      bool
	Materialized bool
}

CreateView represents a CREATE VIEW statement.

func (*CreateView) Format 

func (node *CreateView) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*CreateView) StatementReturnType 

func (*CreateView) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*CreateView) StatementTag 

func (*CreateView) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*CreateView) StatementType 

func (*CreateView) StatementType() StatementType

StatementType implements the Statement interface.

func (*CreateView) String 

func (n *CreateView) String() string

type CursorScrollOption 

type CursorScrollOption int8

CursorScrollOption represents the scroll option, if one was given, for a DECLARE statement. 

const (
	// UnspecifiedScroll represents no SCROLL option having been given. In
	// Postgres, this is like NO SCROLL, but the returned cursor also supports
	// some simple cases of backward seeking. For CockroachDB, this is the same
	// as NO SCROLL.
	UnspecifiedScroll CursorScrollOption = iota
	// Scroll represents the SCROLL option. It is supposed to indicate that the
	// declared cursor is "scrollable", meaning it can be seeked backward.
	Scroll
	// NoScroll represents the NO SCROLL option, which means that the declared
	// cursor can only be moved forward.
	NoScroll
)

func (CursorScrollOption) String 

func (o CursorScrollOption) String() string

type CursorSensitivity 

type CursorSensitivity int

CursorSensitivity represents the "sensitivity" of a cursor, which describes whether it sees writes that occur within the transaction after it was declared. CockroachDB, like Postgres, only supports "insensitive" cursors, and all three variants of sensitivity here resolve to insensitive. SENSITIVE cursors are not supported. 

const (
	// UnspecifiedSensitivity indicates that no sensitivity was specified. This
	// is the same as INSENSITIVE.
	UnspecifiedSensitivity CursorSensitivity = iota
	// Insensitive indicates that the cursor is "insensitive" to subsequent
	// writes, meaning that it sees a snapshot of data from the moment it was
	// declared, and won't see subsequent writes within the transaction.
	Insensitive
	// Asensitive indicates that "the cursor is implementation dependent".
	Asensitive
)

func (CursorSensitivity) String 

func (o CursorSensitivity) String() string

type CursorStmt 

type CursorStmt struct {
	Name      Name
	FetchType FetchType
	Count     int64
}

CursorStmt represents the shared structure between a FETCH and MOVE statement.

func (CursorStmt) Format 

func (c CursorStmt) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type DArray 

type DArray struct {
	ParamTyp *types.T
	Array    Datums
	// HasNulls is set to true if any of the datums within the array are null.
	// This is used in the binary array serialization format.
	HasNulls bool
	// HasNonNulls is set to true if any of the datums within the are non-null.
	// This is used in expression serialization (FmtParsable).
	HasNonNulls bool
	// contains filtered or unexported fields
}

DArray is the array Datum. Any Datum inserted into a DArray are treated as text during serialization.

func AsDArray 

func AsDArray(e Expr) (*DArray, bool)

AsDArray attempts to retrieve a *DArray from an Expr, returning a *DArray and a flag signifying whether the assertion was successful. The function should be used instead of direct type assertions wherever a *DArray wrapped by a *DOidWrapper is possible.

func MustBeDArray 

func MustBeDArray(e Expr) *DArray

MustBeDArray attempts to retrieve a *DArray from an Expr, panicking if the assertion fails.

func NewDArray 

func NewDArray(paramTyp *types.T) *DArray

NewDArray returns a DArray containing elements of the specified type.

func ParseDArrayFromString 

func ParseDArrayFromString(
	ctx ParseTimeContext, s string, t *types.T,
) (_ *DArray, dependsOnContext bool, _ error)

ParseDArrayFromString parses the string-form of constructing arrays, handling cases such as `'{1,2,3}'::INT[]`. The input type t is the type of the parameter of the array to parse.

The dependsOnContext return value indicates if we had to consult the ParseTimeContext (either for the time or the local timezone).

func (*DArray) AmbiguousFormat 

func (d *DArray) AmbiguousFormat() bool

AmbiguousFormat implements the Datum interface.

func (*DArray) Append 

func (d *DArray) Append(v Datum) error

Append appends a Datum to the array, whose parameterized type must be consistent with the type of the Datum.

func (*DArray) Compare 

func (d *DArray) Compare(ctx *EvalContext, other Datum) int

Compare implements the Datum interface.

func (*DArray) CompareError 

func (d *DArray) CompareError(ctx *EvalContext, other Datum) (int, error)

CompareError implements the Datum interface.

func (*DArray) Eval 

func (t *DArray) Eval(_ *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*DArray) FirstIndex 

func (d *DArray) FirstIndex() int

FirstIndex returns the first index of the array. 1 for normal SQL arrays, which are 1-indexed, and 0 for the special Postgers vector types which are 0-indexed.

func (*DArray) Format 

func (d *DArray) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*DArray) IsComposite 

func (d *DArray) IsComposite() bool

IsComposite implements the CompositeDatum interface.

func (*DArray) IsMax 

func (d *DArray) IsMax(_ *EvalContext) bool

IsMax implements the Datum interface.

func (*DArray) IsMin 

func (d *DArray) IsMin(_ *EvalContext) bool

IsMin implements the Datum interface.

func (*DArray) Len 

func (d *DArray) Len() int

Len returns the length of the Datum array.

func (*DArray) Max 

func (d *DArray) Max(_ *EvalContext) (Datum, bool)

Max implements the Datum interface.

func (*DArray) Min 

func (d *DArray) Min(_ *EvalContext) (Datum, bool)

Min implements the Datum interface.

func (*DArray) Next 

func (d *DArray) Next(_ *EvalContext) (Datum, bool)

Next implements the Datum interface.

func (*DArray) Prev 

func (d *DArray) Prev(_ *EvalContext) (Datum, bool)

Prev implements the Datum interface.

func (*DArray) ResolvedType 

func (d *DArray) ResolvedType() *types.T

ResolvedType implements the TypedExpr interface.

func (*DArray) Size 

func (d *DArray) Size() uintptr

Size implements the Datum interface.

func (*DArray) String 

func (node *DArray) String() string

func (*DArray) TypeCheck 

func (d *DArray) TypeCheck(_ context.Context, _ *SemaContext, desired *types.T) (TypedExpr, error)

TypeCheck implements the Expr interface. It is implemented as an idempotent identity function for Datum.

func (*DArray) Validate 

func (d *DArray) Validate() error

Validate checks that the given array is valid, for example, that it's not too big.

func (*DArray) Walk 

func (expr *DArray) Walk(v Visitor) Expr

Walk implements the Expr interface.

type DBitArray 

type DBitArray struct {
	bitarray.BitArray
}

DBitArray is the BIT/VARBIT Datum.

func AsDBitArray 

func AsDBitArray(e Expr) (*DBitArray, bool)

AsDBitArray attempts to retrieve a *DBitArray from an Expr, returning a *DBitArray and a flag signifying whether the assertion was successful. The function should be used instead of direct type assertions.

func MakeDBitArray 

func MakeDBitArray(bitLen uint) DBitArray

MakeDBitArray returns a DBitArray.

func MustBeDBitArray 

func MustBeDBitArray(e Expr) *DBitArray

MustBeDBitArray attempts to retrieve a DBitArray from an Expr, panicking if the assertion fails.

func NewDBitArray 

func NewDBitArray(bitLen uint) *DBitArray

NewDBitArray returns a DBitArray.

func NewDBitArrayFromInt 

func NewDBitArrayFromInt(i int64, width uint) (*DBitArray, error)

NewDBitArrayFromInt creates a bit array from the specified integer at the specified width. If the width is zero, only positive integers can be converted. If the width is nonzero, the value is truncated to that width. Negative values are encoded using two's complement.

func ParseDBitArray 

func ParseDBitArray(s string) (*DBitArray, error)

ParseDBitArray parses a string representation of binary digits.

func (*DBitArray) AmbiguousFormat 

func (*DBitArray) AmbiguousFormat() bool

AmbiguousFormat implements the Datum interface.

func (*DBitArray) AsDInt 

func (d *DBitArray) AsDInt(n uint) *DInt

AsDInt computes the integer value of the given bit array. The value is assumed to be encoded using two's complement. The result is truncated to the given integer number of bits, if specified. The given width must be 64 or smaller. The results are undefined if n is greater than 64.

func (*DBitArray) Compare 

func (d *DBitArray) Compare(ctx *EvalContext, other Datum) int

Compare implements the Datum interface.

func (*DBitArray) CompareError 

func (d *DBitArray) CompareError(ctx *EvalContext, other Datum) (int, error)

CompareError implements the Datum interface.

func (*DBitArray) Eval 

func (t *DBitArray) Eval(_ *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*DBitArray) Format 

func (d *DBitArray) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*DBitArray) IsMax 

func (d *DBitArray) IsMax(_ *EvalContext) bool

IsMax implements the Datum interface.

func (*DBitArray) IsMin 

func (d *DBitArray) IsMin(_ *EvalContext) bool

IsMin implements the Datum interface.

func (*DBitArray) Max 

func (d *DBitArray) Max(_ *EvalContext) (Datum, bool)

Max implements the Datum interface.

func (*DBitArray) Min 

func (d *DBitArray) Min(_ *EvalContext) (Datum, bool)

Min implements the Datum interface.

func (*DBitArray) Next 

func (d *DBitArray) Next(_ *EvalContext) (Datum, bool)

Next implements the Datum interface.

func (*DBitArray) Prev 

func (d *DBitArray) Prev(_ *EvalContext) (Datum, bool)

Prev implements the Datum interface.

func (*DBitArray) ResolvedType 

func (*DBitArray) ResolvedType() *types.T

ResolvedType implements the TypedExpr interface.

func (*DBitArray) Size 

func (d *DBitArray) Size() uintptr

Size implements the Datum interface.

func (*DBitArray) String 

func (node *DBitArray) String() string

func (*DBitArray) TypeCheck 

func (d *DBitArray) TypeCheck(_ context.Context, _ *SemaContext, _ *types.T) (TypedExpr, error)

TypeCheck implements the Expr interface. It is implemented as an idempotent identity function for Datum.

func (*DBitArray) Walk 

func (expr *DBitArray) Walk(_ Visitor) Expr

Walk implements the Expr interface.

type DBool 

type DBool bool

DBool is the boolean Datum.

func ArrayContains 

func ArrayContains(ctx *EvalContext, haystack *DArray, needles *DArray) (*DBool, error)

ArrayContains return true if the haystack contains all needles.

func AsDBool 

func AsDBool(e Expr) (DBool, bool)

AsDBool attempts to retrieve a *DBool from an Expr, returning a *DBool and a flag signifying whether the assertion was successful. The function should be used instead of direct type assertions.

func GetBool 

func GetBool(d Datum) (DBool, error)

GetBool gets DBool or an error (also treats NULL as false, not an error).

func MakeDBool 

func MakeDBool(d DBool) *DBool

MakeDBool converts its argument to a *DBool, returning either DBoolTrue or DBoolFalse.

func MustBeDBool 

func MustBeDBool(e Expr) DBool

MustBeDBool attempts to retrieve a DBool from an Expr, panicking if the assertion fails.

func ParseDBool 

func ParseDBool(s string) (*DBool, error)

ParseDBool parses and returns the *DBool Datum value represented by the provided string, or an error if parsing is unsuccessful. See https://github.com/postgres/postgres/blob/90627cf98a8e7d0531789391fd798c9bfcc3bc1a/src/backend/utils/adt/bool.c#L36

func (*DBool) AmbiguousFormat 

func (*DBool) AmbiguousFormat() bool

AmbiguousFormat implements the Datum interface.

func (*DBool) Compare 

func (d *DBool) Compare(ctx *EvalContext, other Datum) int

Compare implements the Datum interface.

func (*DBool) CompareError 

func (d *DBool) CompareError(ctx *EvalContext, other Datum) (int, error)

CompareError implements the Datum interface.

func (*DBool) Eval 

func (t *DBool) Eval(_ *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*DBool) Format 

func (d *DBool) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*DBool) IsMax 

func (d *DBool) IsMax(_ *EvalContext) bool

IsMax implements the Datum interface.

func (*DBool) IsMin 

func (d *DBool) IsMin(_ *EvalContext) bool

IsMin implements the Datum interface.

func (*DBool) Max 

func (d *DBool) Max(_ *EvalContext) (Datum, bool)

Max implements the Datum interface.

func (*DBool) Min 

func (d *DBool) Min(_ *EvalContext) (Datum, bool)

Min implements the Datum interface.

func (*DBool) Next 

func (*DBool) Next(_ *EvalContext) (Datum, bool)

Next implements the Datum interface.

func (*DBool) Prev 

func (*DBool) Prev(_ *EvalContext) (Datum, bool)

Prev implements the Datum interface.

func (*DBool) ResolvedType 

func (*DBool) ResolvedType() *types.T

ResolvedType implements the TypedExpr interface.

func (*DBool) Size 

func (d *DBool) Size() uintptr

Size implements the Datum interface.

func (*DBool) String 

func (node *DBool) String() string

func (*DBool) TypeCheck 

func (d *DBool) TypeCheck(_ context.Context, _ *SemaContext, _ *types.T) (TypedExpr, error)

TypeCheck implements the Expr interface. It is implemented as an idempotent identity function for Datum.

func (*DBool) Walk 

func (expr *DBool) Walk(_ Visitor) Expr

Walk implements the Expr interface.

type DBox2D 

type DBox2D struct {
}

DBox2D is the Datum representation of the Box2D type.

func AsDBox2D 

func AsDBox2D(e Expr) (*DBox2D, bool)

AsDBox2D attempts to retrieve a *DBox2D from an Expr, returning a *DBox2D and a flag signifying whether the assertion was successful. The function should be used instead of direct type assertions wherever a *DBox2D wrapped by a *DOidWrapper is possible.

func MustBeDBox2D 

func MustBeDBox2D(e Expr) *DBox2D

MustBeDBox2D attempts to retrieve a *DBox2D from an Expr, panicking if the assertion fails.

func (*DBox2D) AmbiguousFormat 

func (*DBox2D) AmbiguousFormat() bool

AmbiguousFormat implements the Datum interface.

func (*DBox2D) Compare 

func (d *DBox2D) Compare(ctx *EvalContext, other Datum) int

Compare implements the Datum interface.

func (*DBox2D) Format 

func (d *DBox2D) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*DBox2D) IsMax 

func (d *DBox2D) IsMax(_ *EvalContext) bool

IsMax implements the Datum interface.

func (*DBox2D) IsMin 

func (d *DBox2D) IsMin(_ *EvalContext) bool

IsMin implements the Datum interface.

func (*DBox2D) Max 

func (d *DBox2D) Max(_ *EvalContext) (Datum, bool)

Max implements the Datum interface.

func (*DBox2D) Min 

func (d *DBox2D) Min(_ *EvalContext) (Datum, bool)

Min implements the Datum interface.

func (*DBox2D) Next 

func (d *DBox2D) Next(ctx *EvalContext) (Datum, bool)

Next implements the Datum interface.

func (*DBox2D) Prev 

func (d *DBox2D) Prev(ctx *EvalContext) (Datum, bool)

Prev implements the Datum interface.

func (*DBox2D) ResolvedType 

func (*DBox2D) ResolvedType() *types.T

ResolvedType implements the TypedExpr interface.

func (*DBox2D) Size 

func (d *DBox2D) Size() uintptr

Size implements the Datum interface.

func (*DBox2D) String 

func (node *DBox2D) String() string

type DBytes 

type DBytes string

DBytes is the bytes Datum. The underlying type is a string because we want the immutability, but this may contain arbitrary bytes.

func AsDBytes 

func AsDBytes(e Expr) (DBytes, bool)

AsDBytes attempts to convert an Expr into a DBytes, returning a flag indicating whether it was successful.

func MustBeDBytes 

func MustBeDBytes(e Expr) DBytes

MustBeDBytes attempts to convert an Expr into a DBytes, panicking if unsuccessful.

func NewDBytes 

func NewDBytes(d DBytes) *DBytes

NewDBytes is a helper routine to create a *DBytes initialized from its argument.

func ParseDByte 

func ParseDByte(s string) (*DBytes, error)

ParseDByte parses a string representation of hex encoded binary data. It supports both the hex format, with "\x" followed by a string of hexadecimal digits (the "\x" prefix occurs just once at the beginning), and the escaped format, which supports "\\" and octal escapes.

func (*DBytes) AmbiguousFormat 

func (*DBytes) AmbiguousFormat() bool

AmbiguousFormat implements the Datum interface.

func (*DBytes) Compare 

func (d *DBytes) Compare(ctx *EvalContext, other Datum) int

Compare implements the Datum interface.

func (*DBytes) CompareError 

func (d *DBytes) CompareError(ctx *EvalContext, other Datum) (int, error)

CompareError implements the Datum interface.

func (*DBytes) Eval 

func (t *DBytes) Eval(_ *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*DBytes) Format 

func (d *DBytes) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*DBytes) IsMax 

func (*DBytes) IsMax(_ *EvalContext) bool

IsMax implements the Datum interface.

func (*DBytes) IsMin 

func (d *DBytes) IsMin(_ *EvalContext) bool

IsMin implements the Datum interface.

func (*DBytes) Max 

func (d *DBytes) Max(_ *EvalContext) (Datum, bool)

Max implements the Datum interface.

func (*DBytes) Min 

func (d *DBytes) Min(_ *EvalContext) (Datum, bool)

Min implements the Datum interface.

func (*DBytes) Next 

func (d *DBytes) Next(_ *EvalContext) (Datum, bool)

Next implements the Datum interface.

func (*DBytes) Prev 

func (d *DBytes) Prev(_ *EvalContext) (Datum, bool)

Prev implements the Datum interface.

func (*DBytes) ResolvedType 

func (*DBytes) ResolvedType() *types.T

ResolvedType implements the TypedExpr interface.

func (*DBytes) Size 

func (d *DBytes) Size() uintptr

Size implements the Datum interface.

func (*DBytes) String 

func (node *DBytes) String() string

func (*DBytes) TypeCheck 

func (d *DBytes) TypeCheck(_ context.Context, _ *SemaContext, _ *types.T) (TypedExpr, error)

TypeCheck implements the Expr interface. It is implemented as an idempotent identity function for Datum.

func (*DBytes) Walk 

func (expr *DBytes) Walk(_ Visitor) Expr

Walk implements the Expr interface.

type DCollatedString 

type DCollatedString struct {
	Contents string
	Locale   string
	// Key is the collation key.
	Key []byte
}

DCollatedString is the Datum for strings with a locale. The struct members are intended to be immutable.

func NewDCollatedString 

func NewDCollatedString(
	contents string, locale string, env *CollationEnvironment,
) (*DCollatedString, error)

NewDCollatedString is a helper routine to create a *DCollatedString. Panics if locale is invalid. Not safe for concurrent use.

func (*DCollatedString) AmbiguousFormat 

func (*DCollatedString) AmbiguousFormat() bool

AmbiguousFormat implements the Datum interface.

func (*DCollatedString) Compare 

func (d *DCollatedString) Compare(ctx *EvalContext, other Datum) int

Compare implements the Datum interface.

func (*DCollatedString) CompareError 

func (d *DCollatedString) CompareError(ctx *EvalContext, other Datum) (int, error)

CompareError implements the Datum interface.

func (*DCollatedString) Eval 

func (t *DCollatedString) Eval(_ *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*DCollatedString) Format 

func (d *DCollatedString) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*DCollatedString) IsComposite 

func (d *DCollatedString) IsComposite() bool

IsComposite implements the CompositeDatum interface.

func (*DCollatedString) IsMax 

func (*DCollatedString) IsMax(_ *EvalContext) bool

IsMax implements the Datum interface.

func (*DCollatedString) IsMin 

func (d *DCollatedString) IsMin(_ *EvalContext) bool

IsMin implements the Datum interface.

func (*DCollatedString) Max 

func (d *DCollatedString) Max(_ *EvalContext) (Datum, bool)

Max implements the Datum interface.

func (*DCollatedString) Min 

func (d *DCollatedString) Min(_ *EvalContext) (Datum, bool)

Min implements the Datum interface.

func (*DCollatedString) Next 

func (d *DCollatedString) Next(_ *EvalContext) (Datum, bool)

Next implements the Datum interface.

func (*DCollatedString) Prev 

func (d *DCollatedString) Prev(_ *EvalContext) (Datum, bool)

Prev implements the Datum interface.

func (*DCollatedString) ResolvedType 

func (d *DCollatedString) ResolvedType() *types.T

ResolvedType implements the TypedExpr interface.

func (*DCollatedString) Size 

func (d *DCollatedString) Size() uintptr

Size implements the Datum interface.

func (*DCollatedString) String 

func (node *DCollatedString) String() string

func (*DCollatedString) TypeCheck 

func (d *DCollatedString) TypeCheck(
	_ context.Context, _ *SemaContext, _ *types.T,
) (TypedExpr, error)

TypeCheck implements the Expr interface. It is implemented as an idempotent identity function for Datum.

func (*DCollatedString) Walk 

func (expr *DCollatedString) Walk(_ Visitor) Expr

Walk implements the Expr interface.

type DDate 

type DDate struct {
	pgdate.Date
}

DDate is the date Datum represented as the number of days after the Unix epoch.

func AsDDate 

func AsDDate(e Expr) (DDate, bool)

AsDDate attempts to retrieve a DDate from an Expr, returning a DDate and a flag signifying whether the assertion was successful. The function should be used instead of direct type assertions wherever a *DDate wrapped by a *DOidWrapper is possible.

func MakeDDate 

func MakeDDate(d pgdate.Date) DDate

MakeDDate makes a DDate from a pgdate.Date.

func MustBeDDate 

func MustBeDDate(e Expr) DDate

MustBeDDate attempts to retrieve a DDate from an Expr, panicking if the assertion fails.

func NewDDate 

func NewDDate(d pgdate.Date) *DDate

NewDDate is a helper routine to create a *DDate initialized from its argument.

func NewDDateFromTime 

func NewDDateFromTime(t time.Time) (*DDate, error)

NewDDateFromTime constructs a *DDate from a time.Time.

func ParseDDate 

func ParseDDate(ctx ParseTimeContext, s string) (_ *DDate, dependsOnContext bool, _ error)

ParseDDate parses and returns the *DDate Datum value represented by the provided string in the provided location, or an error if parsing is unsuccessful.

The dependsOnContext return value indicates if we had to consult the ParseTimeContext (either for the time or the local timezone).

func (*DDate) AmbiguousFormat 

func (*DDate) AmbiguousFormat() bool

AmbiguousFormat implements the Datum interface.

func (*DDate) Compare 

func (d *DDate) Compare(ctx *EvalContext, other Datum) int

Compare implements the Datum interface.

func (*DDate) CompareError 

func (d *DDate) CompareError(ctx *EvalContext, other Datum) (int, error)

CompareError implements the Datum interface.

func (*DDate) Eval 

func (t *DDate) Eval(_ *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*DDate) Format 

func (d *DDate) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*DDate) IsMax 

func (d *DDate) IsMax(_ *EvalContext) bool

IsMax implements the Datum interface.

func (*DDate) IsMin 

func (d *DDate) IsMin(_ *EvalContext) bool

IsMin implements the Datum interface.

func (*DDate) Max 

func (d *DDate) Max(_ *EvalContext) (Datum, bool)

Max implements the Datum interface.

func (*DDate) Min 

func (d *DDate) Min(_ *EvalContext) (Datum, bool)

Min implements the Datum interface.

func (*DDate) Next 

func (d *DDate) Next(_ *EvalContext) (Datum, bool)

Next implements the Datum interface.

func (*DDate) Prev 

func (d *DDate) Prev(_ *EvalContext) (Datum, bool)

Prev implements the Datum interface.

func (*DDate) ResolvedType 

func (*DDate) ResolvedType() *types.T

ResolvedType implements the TypedExpr interface.

func (*DDate) Size 

func (d *DDate) Size() uintptr

Size implements the Datum interface.

func (*DDate) String 

func (node *DDate) String() string

func (*DDate) TypeCheck 

func (d *DDate) TypeCheck(_ context.Context, _ *SemaContext, _ *types.T) (TypedExpr, error)

TypeCheck implements the Expr interface. It is implemented as an idempotent identity function for Datum.

func (*DDate) Walk 

func (expr *DDate) Walk(_ Visitor) Expr

Walk implements the Expr interface.

type DDecimal 

type DDecimal struct {
	apd.Decimal
}

DDecimal is the decimal Datum. 

var DecimalOne DDecimal

DecimalOne represents the constant 1 as DECIMAL.

func DecimalCbrt 

func DecimalCbrt(x *apd.Decimal) (*DDecimal, error)

DecimalCbrt returns the cube root of x.

func DecimalSqrt 

func DecimalSqrt(x *apd.Decimal) (*DDecimal, error)

DecimalSqrt returns the square root of x.

func MustBeDDecimal 

func MustBeDDecimal(e Expr) DDecimal

MustBeDDecimal attempts to retrieve a DDecimal from an Expr, panicking if the assertion fails.

func ParseDDecimal 

func ParseDDecimal(s string) (*DDecimal, error)

ParseDDecimal parses and returns the *DDecimal Datum value represented by the provided string, or an error if parsing is unsuccessful.

func TimestampToDecimalDatum 

func TimestampToDecimalDatum(ts hlc.Timestamp) *DDecimal

TimestampToDecimalDatum is the same as TimestampToDecimal, but returns a datum.

func (*DDecimal) AmbiguousFormat 

func (*DDecimal) AmbiguousFormat() bool

AmbiguousFormat implements the Datum interface.

func (*DDecimal) Compare 

func (d *DDecimal) Compare(ctx *EvalContext, other Datum) int

Compare implements the Datum interface.

func (*DDecimal) CompareError 

func (d *DDecimal) CompareError(ctx *EvalContext, other Datum) (int, error)

CompareError implements the Datum interface.

func (*DDecimal) Eval 

func (t *DDecimal) Eval(_ *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*DDecimal) Format 

func (d *DDecimal) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*DDecimal) IsComposite 

func (d *DDecimal) IsComposite() bool

IsComposite implements the CompositeDatum interface.

func (*DDecimal) IsMax 

func (d *DDecimal) IsMax(_ *EvalContext) bool

IsMax implements the Datum interface.

func (*DDecimal) IsMin 

func (d *DDecimal) IsMin(_ *EvalContext) bool

IsMin implements the Datum interface.

func (*DDecimal) Max 

func (d *DDecimal) Max(_ *EvalContext) (Datum, bool)

Max implements the Datum interface.

func (*DDecimal) Min 

func (d *DDecimal) Min(_ *EvalContext) (Datum, bool)

Min implements the Datum interface.

func (*DDecimal) Next 

func (d *DDecimal) Next(_ *EvalContext) (Datum, bool)

Next implements the Datum interface.

func (*DDecimal) Prev 

func (d *DDecimal) Prev(_ *EvalContext) (Datum, bool)

Prev implements the Datum interface.

func (*DDecimal) ResolvedType 

func (*DDecimal) ResolvedType() *types.T

ResolvedType implements the TypedExpr interface.

func (*DDecimal) SetString 

func (d *DDecimal) SetString(s string) error

SetString sets d to s. Any non-standard NaN values are converted to a normal NaN. Any negative zero is converted to positive.

func (*DDecimal) Size 

func (d *DDecimal) Size() uintptr

Size implements the Datum interface.

func (*DDecimal) String 

func (node *DDecimal) String() string

func (*DDecimal) TypeCheck 

func (d *DDecimal) TypeCheck(_ context.Context, _ *SemaContext, _ *types.T) (TypedExpr, error)

TypeCheck implements the Expr interface. It is implemented as an idempotent identity function for Datum.

func (*DDecimal) Walk 

func (expr *DDecimal) Walk(_ Visitor) Expr

Walk implements the Expr interface.

type DEncodedKey 

type DEncodedKey string

DEncodedKey is a special Datum of types.EncodedKey type, used to pass through encoded key data. It is similar to DBytes, except when it comes to encoding/decoding. It is currently used to pass around inverted index keys, which do not fully encode an object.

func NewDEncodedKey 

func NewDEncodedKey(d DEncodedKey) *DEncodedKey

NewDEncodedKey is a helper routine to create a *DEncodedKey initialized from its argument.

func (*DEncodedKey) AmbiguousFormat 

func (*DEncodedKey) AmbiguousFormat() bool

AmbiguousFormat implements the Datum interface.

func (*DEncodedKey) Compare 

func (d *DEncodedKey) Compare(ctx *EvalContext, other Datum) int

Compare implements the Datum interface.

func (*DEncodedKey) CompareError 

func (d *DEncodedKey) CompareError(ctx *EvalContext, other Datum) (int, error)

CompareError implements the Datum interface.

func (*DEncodedKey) Eval 

func (t *DEncodedKey) Eval(_ *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*DEncodedKey) Format 

func (d *DEncodedKey) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*DEncodedKey) IsMax 

func (*DEncodedKey) IsMax(_ *EvalContext) bool

IsMax implements the Datum interface.

func (*DEncodedKey) IsMin 

func (d *DEncodedKey) IsMin(_ *EvalContext) bool

IsMin implements the Datum interface.

func (*DEncodedKey) Max 

func (d *DEncodedKey) Max(_ *EvalContext) (Datum, bool)

Max implements the Datum interface.

func (*DEncodedKey) Min 

func (d *DEncodedKey) Min(_ *EvalContext) (Datum, bool)

Min implements the Datum interface.

func (*DEncodedKey) Next 

func (d *DEncodedKey) Next(_ *EvalContext) (Datum, bool)

Next implements the Datum interface.

func (*DEncodedKey) Prev 

func (d *DEncodedKey) Prev(_ *EvalContext) (Datum, bool)

Prev implements the Datum interface.

func (*DEncodedKey) ResolvedType 

func (*DEncodedKey) ResolvedType() *types.T

ResolvedType implements the TypedExpr interface.

func (*DEncodedKey) Size 

func (d *DEncodedKey) Size() uintptr

Size implements the Datum interface.

func (*DEncodedKey) String 

func (node *DEncodedKey) String() string

func (*DEncodedKey) TypeCheck 

func (d *DEncodedKey) TypeCheck(_ context.Context, _ *SemaContext, _ *types.T) (TypedExpr, error)

TypeCheck implements the Expr interface. It is implemented as an idempotent identity function for Datum.

func (*DEncodedKey) Walk 

func (expr *DEncodedKey) Walk(_ Visitor) Expr

Walk implements the Expr interface.

type DEnum 

type DEnum struct {
	// EnumType is the hydrated type of this enum.
	EnumTyp *types.T
	// PhysicalRep is a slice containing the encodable and ordered physical
	// representation of this datum. It is used for comparisons and encoding.
	PhysicalRep []byte
	// LogicalRep is a string containing the user visible value of the enum.
	LogicalRep string
}

DEnum represents an ENUM value.

func MakeDEnumFromLogicalRepresentation 

func MakeDEnumFromLogicalRepresentation(typ *types.T, rep string) (*DEnum, error)

MakeDEnumFromLogicalRepresentation creates a DEnum of the input type and input logical representation. It returns an error if the input logical representation is invalid.

func MakeDEnumFromPhysicalRepresentation 

func MakeDEnumFromPhysicalRepresentation(typ *types.T, rep []byte) (*DEnum, error)

MakeDEnumFromPhysicalRepresentation creates a DEnum of the input type and the input physical representation.

func (*DEnum) AmbiguousFormat 

func (d *DEnum) AmbiguousFormat() bool

AmbiguousFormat implements the Datum interface.

func (*DEnum) Compare 

func (d *DEnum) Compare(ctx *EvalContext, other Datum) int

Compare implements the Datum interface.

func (*DEnum) CompareError 

func (d *DEnum) CompareError(ctx *EvalContext, other Datum) (int, error)

CompareError implements the Datum interface.

func (*DEnum) Eval 

func (t *DEnum) Eval(_ *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*DEnum) Format 

func (d *DEnum) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*DEnum) IsMax 

func (d *DEnum) IsMax(_ *EvalContext) bool

IsMax implements the Datum interface.

func (*DEnum) IsMin 

func (d *DEnum) IsMin(_ *EvalContext) bool

IsMin implements the Datum interface.

func (*DEnum) Max 

func (d *DEnum) Max(ctx *EvalContext) (Datum, bool)

Max implements the Datum interface.

func (*DEnum) MaxWriteable 

func (d *DEnum) MaxWriteable() (Datum, bool)

MaxWriteable returns the largest member of the enum that is writeable.

func (*DEnum) Min 

func (d *DEnum) Min(ctx *EvalContext) (Datum, bool)

Min implements the Datum interface.

func (*DEnum) MinWriteable 

func (d *DEnum) MinWriteable() (Datum, bool)

MinWriteable returns the smallest member of the enum that is writeable.

func (*DEnum) Next 

func (d *DEnum) Next(ctx *EvalContext) (Datum, bool)

Next implements the Datum interface.

func (*DEnum) Prev 

func (d *DEnum) Prev(ctx *EvalContext) (Datum, bool)

Prev implements the Datum interface.

func (*DEnum) ResolvedType 

func (d *DEnum) ResolvedType() *types.T

ResolvedType implements the Datum interface.

func (*DEnum) Size 

func (d *DEnum) Size() uintptr

Size implements the Datum interface.

func (*DEnum) String 

func (d *DEnum) String() string

func (*DEnum) TypeCheck 

func (d *DEnum) TypeCheck(_ context.Context, _ *SemaContext, _ *types.T) (TypedExpr, error)

TypeCheck implements the Expr interface. It is implemented as an idempotent identity function for Datum.

func (*DEnum) Walk 

func (expr *DEnum) Walk(_ Visitor) Expr

Walk implements the Expr interface.

type DFloat 

type DFloat float64

DFloat is the float Datum.

func Cbrt 

func Cbrt(x float64) (*DFloat, error)

Cbrt returns the cube root of x.

func MustBeDFloat 

func MustBeDFloat(e Expr) DFloat

MustBeDFloat attempts to retrieve a DFloat from an Expr, panicking if the assertion fails.

func NewDFloat 

func NewDFloat(d DFloat) *DFloat

NewDFloat is a helper routine to create a *DFloat initialized from its argument.

func ParseDFloat 

func ParseDFloat(s string) (*DFloat, error)

ParseDFloat parses and returns the *DFloat Datum value represented by the provided string, or an error if parsing is unsuccessful.

func Sqrt 

func Sqrt(x float64) (*DFloat, error)

Sqrt returns the square root of x.

func (*DFloat) AmbiguousFormat 

func (*DFloat) AmbiguousFormat() bool

AmbiguousFormat implements the Datum interface.

func (*DFloat) Compare 

func (d *DFloat) Compare(ctx *EvalContext, other Datum) int

Compare implements the Datum interface.

func (*DFloat) CompareError 

func (d *DFloat) CompareError(ctx *EvalContext, other Datum) (int, error)

CompareError implements the Datum interface.

func (*DFloat) Eval 

func (t *DFloat) Eval(_ *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*DFloat) Format 

func (d *DFloat) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*DFloat) IsComposite 

func (d *DFloat) IsComposite() bool

IsComposite implements the CompositeDatum interface.

func (*DFloat) IsMax 

func (d *DFloat) IsMax(_ *EvalContext) bool

IsMax implements the Datum interface.

func (*DFloat) IsMin 

func (d *DFloat) IsMin(_ *EvalContext) bool

IsMin implements the Datum interface.

func (*DFloat) Max 

func (d *DFloat) Max(_ *EvalContext) (Datum, bool)

Max implements the Datum interface.

func (*DFloat) Min 

func (d *DFloat) Min(_ *EvalContext) (Datum, bool)

Min implements the Datum interface.

func (*DFloat) Next 

func (d *DFloat) Next(_ *EvalContext) (Datum, bool)

Next implements the Datum interface.

func (*DFloat) Prev 

func (d *DFloat) Prev(_ *EvalContext) (Datum, bool)

Prev implements the Datum interface.

func (*DFloat) ResolvedType 

func (*DFloat) ResolvedType() *types.T

ResolvedType implements the TypedExpr interface.

func (*DFloat) Size 

func (d *DFloat) Size() uintptr

Size implements the Datum interface.

func (*DFloat) String 

func (node *DFloat) String() string

func (*DFloat) TypeCheck 

func (d *DFloat) TypeCheck(_ context.Context, _ *SemaContext, _ *types.T) (TypedExpr, error)

TypeCheck implements the Expr interface. It is implemented as an idempotent identity function for Datum.

func (*DFloat) Walk 

func (expr *DFloat) Walk(_ Visitor) Expr

Walk implements the Expr interface.

type DGeography 

type DGeography struct {
}

DGeography is the Geometry Datum.

func AsDGeography 

func AsDGeography(e Expr) (*DGeography, bool)

AsDGeography attempts to retrieve a *DGeography from an Expr, returning a *DGeography and a flag signifying whether the assertion was successful. The function should be used instead of direct type assertions wherever a *DGeography wrapped by a *DOidWrapper is possible.

func ParseDGeography 

func ParseDGeography(str string) (*DGeography, error)

ParseDGeography attempts to pass `str` as a Geography type.

func (*DGeography) AmbiguousFormat 

func (*DGeography) AmbiguousFormat() bool

AmbiguousFormat implements the Datum interface.

func (*DGeography) Format 

func (d *DGeography) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*DGeography) IsMax 

func (d *DGeography) IsMax(_ *EvalContext) bool

IsMax implements the Datum interface.

func (*DGeography) IsMin 

func (d *DGeography) IsMin(_ *EvalContext) bool

IsMin implements the Datum interface.

func (*DGeography) Max 

func (d *DGeography) Max(_ *EvalContext) (Datum, bool)

Max implements the Datum interface.

func (*DGeography) Min 

func (d *DGeography) Min(_ *EvalContext) (Datum, bool)

Min implements the Datum interface.

func (*DGeography) Next 

func (d *DGeography) Next(ctx *EvalContext) (Datum, bool)

Next implements the Datum interface.

func (*DGeography) Prev 

func (d *DGeography) Prev(ctx *EvalContext) (Datum, bool)

Prev implements the Datum interface.

func (*DGeography) ResolvedType 

func (*DGeography) ResolvedType() *types.T

ResolvedType implements the TypedExpr interface.

type DGeometry 

type DGeometry struct {
}

DGeometry is the Geometry Datum.

func AsDGeometry 

func AsDGeometry(e Expr) (*DGeometry, bool)

AsDGeometry attempts to retrieve a *DGeometry from an Expr, returning a *DGeometry and a flag signifying whether the assertion was successful. The function should be used instead of direct type assertions wherever a *DGeometry wrapped by a *DOidWrapper is possible.

func MustBeDGeometry 

func MustBeDGeometry(e Expr) *DGeometry

MustBeDGeometry attempts to retrieve a *DGeometry from an Expr, panicking if the assertion fails.

func (*DGeometry) AmbiguousFormat 

func (*DGeometry) AmbiguousFormat() bool

AmbiguousFormat implements the Datum interface.

func (*DGeometry) Format 

func (d *DGeometry) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*DGeometry) IsMax 

func (d *DGeometry) IsMax(_ *EvalContext) bool

IsMax implements the Datum interface.

func (*DGeometry) IsMin 

func (d *DGeometry) IsMin(_ *EvalContext) bool

IsMin implements the Datum interface.

func (*DGeometry) Max 

func (d *DGeometry) Max(_ *EvalContext) (Datum, bool)

Max implements the Datum interface.

func (*DGeometry) Min 

func (d *DGeometry) Min(_ *EvalContext) (Datum, bool)

Min implements the Datum interface.

func (*DGeometry) Next 

func (d *DGeometry) Next(ctx *EvalContext) (Datum, bool)

Next implements the Datum interface.

func (*DGeometry) Prev 

func (d *DGeometry) Prev(ctx *EvalContext) (Datum, bool)

Prev implements the Datum interface.

func (*DGeometry) ResolvedType 

func (*DGeometry) ResolvedType() *types.T

ResolvedType implements the TypedExpr interface.

func (*DGeometry) String 

func (node *DGeometry) String() string

type DIPAddr 

type DIPAddr struct {
	ipaddr.IPAddr
}

DIPAddr is the IPAddr Datum.

func AsDIPAddr 

func AsDIPAddr(e Expr) (DIPAddr, bool)

AsDIPAddr attempts to retrieve a *DIPAddr from an Expr, returning a *DIPAddr and a flag signifying whether the assertion was successful. The function should be used instead of direct type assertions wherever a *DIPAddr wrapped by a *DOidWrapper is possible.

func MustBeDIPAddr 

func MustBeDIPAddr(e Expr) DIPAddr

MustBeDIPAddr attempts to retrieve a DIPAddr from an Expr, panicking if the assertion fails.

func NewDIPAddr 

func NewDIPAddr(d DIPAddr) *DIPAddr

NewDIPAddr is a helper routine to create a *DIPAddr initialized from its argument.

func ParseDIPAddrFromINetString 

func ParseDIPAddrFromINetString(s string) (*DIPAddr, error)

ParseDIPAddrFromINetString parses and returns the *DIPAddr Datum value represented by the provided input INet string, or an error.

func (*DIPAddr) AmbiguousFormat 

func (*DIPAddr) AmbiguousFormat() bool

AmbiguousFormat implements the Datum interface.

func (*DIPAddr) Compare 

func (d *DIPAddr) Compare(ctx *EvalContext, other Datum) int

Compare implements the Datum interface.

func (*DIPAddr) CompareError 

func (d *DIPAddr) CompareError(ctx *EvalContext, other Datum) (int, error)

CompareError implements the Datum interface.

func (*DIPAddr) Eval 

func (t *DIPAddr) Eval(_ *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*DIPAddr) Format 

func (d *DIPAddr) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*DIPAddr) IsMax 

func (d *DIPAddr) IsMax(_ *EvalContext) bool

IsMax implements the Datum interface.

func (*DIPAddr) IsMin 

func (d *DIPAddr) IsMin(_ *EvalContext) bool

IsMin implements the Datum interface.

func (*DIPAddr) Max 

func (*DIPAddr) Max(_ *EvalContext) (Datum, bool)

Max implements the Datum interface.

func (*DIPAddr) Min 

func (*DIPAddr) Min(_ *EvalContext) (Datum, bool)

Min implements the Datum interface.

func (*DIPAddr) Next 

func (d *DIPAddr) Next(_ *EvalContext) (Datum, bool)

Next implements the Datum interface.

func (*DIPAddr) Prev 

func (d *DIPAddr) Prev(_ *EvalContext) (Datum, bool)

Prev implements the Datum interface.

func (*DIPAddr) ResolvedType 

func (*DIPAddr) ResolvedType() *types.T

ResolvedType implements the TypedExpr interface.

func (*DIPAddr) Size 

func (d *DIPAddr) Size() uintptr

Size implements the Datum interface.

func (*DIPAddr) String 

func (node *DIPAddr) String() string

func (*DIPAddr) TypeCheck 

func (d *DIPAddr) TypeCheck(_ context.Context, _ *SemaContext, _ *types.T) (TypedExpr, error)

TypeCheck implements the Expr interface. It is implemented as an idempotent identity function for Datum.

func (*DIPAddr) Walk 

func (expr *DIPAddr) Walk(_ Visitor) Expr

Walk implements the Expr interface.

type DInt 

type DInt int64

DInt is the int Datum.

func AsDInt 

func AsDInt(e Expr) (DInt, bool)

AsDInt attempts to retrieve a DInt from an Expr, returning a DInt and a flag signifying whether the assertion was successful. The function should be used instead of direct type assertions wherever a *DInt wrapped by a *DOidWrapper is possible.

func IntPow 

func IntPow(x, y DInt) (*DInt, error)

IntPow computes the value of x^y.

func MustBeDInt 

func MustBeDInt(e Expr) DInt

MustBeDInt attempts to retrieve a DInt from an Expr, panicking if the assertion fails.

func NewDInt 

func NewDInt(d DInt) *DInt

NewDInt is a helper routine to create a *DInt initialized from its argument.

func ParseDInt 

func ParseDInt(s string) (*DInt, error)

ParseDInt parses and returns the *DInt Datum value represented by the provided string, or an error if parsing is unsuccessful.

func (*DInt) AmbiguousFormat 

func (*DInt) AmbiguousFormat() bool

AmbiguousFormat implements the Datum interface.

func (*DInt) Compare 

func (d *DInt) Compare(ctx *EvalContext, other Datum) int

Compare implements the Datum interface.

func (*DInt) CompareError 

func (d *DInt) CompareError(ctx *EvalContext, other Datum) (int, error)

CompareError implements the Datum interface.

func (*DInt) Eval 

func (t *DInt) Eval(_ *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*DInt) Format 

func (d *DInt) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*DInt) IsMax 

func (d *DInt) IsMax(_ *EvalContext) bool

IsMax implements the Datum interface.

func (*DInt) IsMin 

func (d *DInt) IsMin(_ *EvalContext) bool

IsMin implements the Datum interface.

func (*DInt) Max 

func (d *DInt) Max(_ *EvalContext) (Datum, bool)

Max implements the Datum interface.

func (*DInt) Min 

func (d *DInt) Min(_ *EvalContext) (Datum, bool)

Min implements the Datum interface.

func (*DInt) Next 

func (d *DInt) Next(_ *EvalContext) (Datum, bool)

Next implements the Datum interface.

func (*DInt) Prev 

func (d *DInt) Prev(_ *EvalContext) (Datum, bool)

Prev implements the Datum interface.

func (*DInt) ResolvedType 

func (*DInt) ResolvedType() *types.T

ResolvedType implements the TypedExpr interface.

func (*DInt) Size 

func (d *DInt) Size() uintptr

Size implements the Datum interface.

func (*DInt) String 

func (node *DInt) String() string

func (*DInt) TypeCheck 

func (d *DInt) TypeCheck(_ context.Context, _ *SemaContext, _ *types.T) (TypedExpr, error)

TypeCheck implements the Expr interface. It is implemented as an idempotent identity function for Datum.

func (*DInt) Walk 

func (expr *DInt) Walk(_ Visitor) Expr

Walk implements the Expr interface.

type DInterval 

type DInterval struct {
	duration.Duration
}

DInterval is the interval Datum.

func MustBeDInterval 

func MustBeDInterval(e Expr) *DInterval

MustBeDInterval attempts to retrieve a DInterval from an Expr, panicking if the assertion fails.

func NewDInterval 

func NewDInterval(d duration.Duration, itm types.IntervalTypeMetadata) *DInterval

NewDInterval creates a new DInterval.

func ParseDInterval 

func ParseDInterval(style duration.IntervalStyle, s string) (*DInterval, error)

ParseDInterval parses and returns the *DInterval Datum value represented by the provided string, or an error if parsing is unsuccessful.

func ParseDIntervalWithTypeMetadata 

func ParseDIntervalWithTypeMetadata(
	style duration.IntervalStyle, s string, itm types.IntervalTypeMetadata,
) (*DInterval, error)

ParseDIntervalWithTypeMetadata is like ParseDInterval, but it also takes a types.IntervalTypeMetadata that both specifies the units for unitless, numeric intervals and also specifies the precision of the interval.

func (*DInterval) AmbiguousFormat 

func (*DInterval) AmbiguousFormat() bool

AmbiguousFormat implements the Datum interface.

func (*DInterval) Compare 

func (d *DInterval) Compare(ctx *EvalContext, other Datum) int

Compare implements the Datum interface.

func (*DInterval) CompareError 

func (d *DInterval) CompareError(ctx *EvalContext, other Datum) (int, error)

CompareError implements the Datum interface.

func (*DInterval) Eval 

func (t *DInterval) Eval(_ *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*DInterval) Format 

func (d *DInterval) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*DInterval) IsMax 

func (d *DInterval) IsMax(_ *EvalContext) bool

IsMax implements the Datum interface.

func (*DInterval) IsMin 

func (d *DInterval) IsMin(_ *EvalContext) bool

IsMin implements the Datum interface.

func (*DInterval) Max 

func (d *DInterval) Max(_ *EvalContext) (Datum, bool)

Max implements the Datum interface.

func (*DInterval) Min 

func (d *DInterval) Min(_ *EvalContext) (Datum, bool)

Min implements the Datum interface.

func (*DInterval) Next 

func (d *DInterval) Next(_ *EvalContext) (Datum, bool)

Next implements the Datum interface.

func (*DInterval) Prev 

func (d *DInterval) Prev(_ *EvalContext) (Datum, bool)

Prev implements the Datum interface.

func (*DInterval) ResolvedType 

func (*DInterval) ResolvedType() *types.T

ResolvedType implements the TypedExpr interface.

func (*DInterval) Size 

func (d *DInterval) Size() uintptr

Size implements the Datum interface.

func (*DInterval) String 

func (node *DInterval) String() string

func (*DInterval) TypeCheck 

func (d *DInterval) TypeCheck(_ context.Context, _ *SemaContext, _ *types.T) (TypedExpr, error)

TypeCheck implements the Expr interface. It is implemented as an idempotent identity function for Datum.

func (*DInterval) ValueAsISO8601String 

func (d *DInterval) ValueAsISO8601String() string

ValueAsISO8601String returns the interval as an ISO 8601 Duration string (e.g. "P1Y2MT6S").

func (*DInterval) Walk 

func (expr *DInterval) Walk(_ Visitor) Expr

Walk implements the Expr interface.

type DOid 

type DOid struct {
	// A DOid embeds a DInt, the underlying integer OID for this OID datum.
	DInt
	// contains filtered or unexported fields
}

DOid is the Postgres OID datum. It can represent either an OID type or any of the reg* types, such as regproc or regclass. An OID must only be 32 bits, since this width encoding is enforced in the pgwire protocol. OIDs are not guaranteed to be globally unique. TODO(rafi): make this use a uint32 instead of a DInt.

func AsDOid 

func AsDOid(e Expr) (*DOid, bool)

AsDOid attempts to retrieve a DOid from an Expr, returning a DOid and a flag signifying whether the assertion was successful. The function should be used instead of direct type assertions wherever a *DOid wrapped by a *DOidWrapper is possible.

func MakeDOid 

func MakeDOid(d DInt) DOid

MakeDOid is a helper routine to create a DOid initialized from a DInt.

func MustBeDOid 

func MustBeDOid(e Expr) *DOid

MustBeDOid attempts to retrieve a DOid from an Expr, panicking if the assertion fails.

func NewDOid 

func NewDOid(d DInt) *DOid

NewDOid is a helper routine to create a *DOid initialized from a DInt.

func NewDOidWithName 

func NewDOidWithName(d DInt, typ *types.T, name string) *DOid

NewDOidWithName is a helper routine to create a *DOid initialized from a DInt and a string.

func ParseDOid 

func ParseDOid(ctx *EvalContext, s string, t *types.T) (*DOid, error)

ParseDOid parses and returns an Oid family datum.

func (*DOid) AmbiguousFormat 

func (*DOid) AmbiguousFormat() bool

AmbiguousFormat implements the Datum interface.

func (*DOid) AsRegProc 

func (d *DOid) AsRegProc(name string) *DOid

AsRegProc changes the input DOid into a regproc with the given name and returns it.

func (*DOid) Compare 

func (d *DOid) Compare(ctx *EvalContext, other Datum) int

Compare implements the Datum interface.

func (*DOid) CompareError 

func (d *DOid) CompareError(ctx *EvalContext, other Datum) (int, error)

CompareError implements the Datum interface.

func (*DOid) Eval 

func (t *DOid) Eval(_ *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*DOid) Format 

func (d *DOid) Format(ctx *FmtCtx)

Format implements the Datum interface.

func (*DOid) IsMax 

func (d *DOid) IsMax(ctx *EvalContext) bool

IsMax implements the Datum interface.

func (*DOid) IsMin 

func (d *DOid) IsMin(ctx *EvalContext) bool

IsMin implements the Datum interface.

func (*DOid) Max 

func (d *DOid) Max(ctx *EvalContext) (Datum, bool)

Max implements the Datum interface.

func (*DOid) Min 

func (d *DOid) Min(ctx *EvalContext) (Datum, bool)

Min implements the Datum interface.

func (*DOid) Next 

func (d *DOid) Next(ctx *EvalContext) (Datum, bool)

Next implements the Datum interface.

func (*DOid) Prev 

func (d *DOid) Prev(ctx *EvalContext) (Datum, bool)

Prev implements the Datum interface.

func (*DOid) ResolvedType 

func (d *DOid) ResolvedType() *types.T

ResolvedType implements the Datum interface.

func (*DOid) Size 

func (d *DOid) Size() uintptr

Size implements the Datum interface.

func (*DOid) String 

func (node *DOid) String() string

func (*DOid) TypeCheck 

func (d *DOid) TypeCheck(_ context.Context, _ *SemaContext, _ *types.T) (TypedExpr, error)

TypeCheck implements the Expr interface. It is implemented as an idempotent identity function for Datum.

func (*DOid) Walk 

func (expr *DOid) Walk(_ Visitor) Expr

Walk implements the Expr interface.

type DOidWrapper 

type DOidWrapper struct {
	Wrapped Datum
	Oid     oid.Oid
}

DOidWrapper is a Datum implementation which is a wrapper around a Datum, allowing custom Oid values to be attached to the Datum and its types.T. The reason the Datum type was introduced was to permit the introduction of Datum types with new Object IDs while maintaining identical behavior to current Datum types. Specifically, it obviates the need to define a new tree.Datum type for each possible Oid value.

Instead, DOidWrapper allows a standard Datum to be wrapped with a new Oid. This approach provides two major advantages:

  • performance of the existing Datum types are not affected because they do not need to have custom oid.Oids added to their structure.
  • the introduction of new Datum aliases is straightforward and does not require additions to typing rules or type-dependent evaluation behavior.

Types that currently benefit from DOidWrapper are: - DName => DOidWrapper(*DString, oid.T_name)

func (*DOidWrapper) AmbiguousFormat 

func (d *DOidWrapper) AmbiguousFormat() bool

AmbiguousFormat implements the Datum interface.

func (*DOidWrapper) Compare 

func (d *DOidWrapper) Compare(ctx *EvalContext, other Datum) int

Compare implements the Datum interface.

func (*DOidWrapper) CompareError 

func (d *DOidWrapper) CompareError(ctx *EvalContext, other Datum) (int, error)

CompareError implements the Datum interface.

func (*DOidWrapper) Eval 

func (t *DOidWrapper) Eval(_ *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*DOidWrapper) Format 

func (d *DOidWrapper) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*DOidWrapper) IsMax 

func (d *DOidWrapper) IsMax(ctx *EvalContext) bool

IsMax implements the Datum interface.

func (*DOidWrapper) IsMin 

func (d *DOidWrapper) IsMin(ctx *EvalContext) bool

IsMin implements the Datum interface.

func (*DOidWrapper) Max 

func (d *DOidWrapper) Max(ctx *EvalContext) (Datum, bool)

Max implements the Datum interface.

func (*DOidWrapper) Min 

func (d *DOidWrapper) Min(ctx *EvalContext) (Datum, bool)

Min implements the Datum interface.

func (*DOidWrapper) Next 

func (d *DOidWrapper) Next(ctx *EvalContext) (Datum, bool)

Next implements the Datum interface.

func (*DOidWrapper) Prev 

func (d *DOidWrapper) Prev(ctx *EvalContext) (Datum, bool)

Prev implements the Datum interface.

func (*DOidWrapper) ResolvedType 

func (d *DOidWrapper) ResolvedType() *types.T

ResolvedType implements the TypedExpr interface.

func (*DOidWrapper) Size 

func (d *DOidWrapper) Size() uintptr

Size implements the Datum interface.

func (*DOidWrapper) String 

func (node *DOidWrapper) String() string

func (*DOidWrapper) TypeCheck 

func (d *DOidWrapper) TypeCheck(_ context.Context, _ *SemaContext, _ *types.T) (TypedExpr, error)

TypeCheck implements the Expr interface. It is implemented as an idempotent identity function for Datum.

func (*DOidWrapper) Walk 

func (expr *DOidWrapper) Walk(_ Visitor) Expr

Walk implements the Expr interface.

type DString 

type DString string

DString is the string Datum.

func AsDString 

func AsDString(e Expr) (DString, bool)

AsDString attempts to retrieve a DString from an Expr, returning a DString and a flag signifying whether the assertion was successful. The function should be used instead of direct type assertions wherever a *DString wrapped by a *DOidWrapper is possible.

func MustBeDString 

func MustBeDString(e Expr) DString

MustBeDString attempts to retrieve a DString from an Expr, panicking if the assertion fails.

func NewDString 

func NewDString(d string) *DString

NewDString is a helper routine to create a *DString initialized from its argument.

func (*DString) AmbiguousFormat 

func (*DString) AmbiguousFormat() bool

AmbiguousFormat implements the Datum interface.

func (*DString) Compare 

func (d *DString) Compare(ctx *EvalContext, other Datum) int

Compare implements the Datum interface.

func (*DString) CompareError 

func (d *DString) CompareError(ctx *EvalContext, other Datum) (int, error)

CompareError implements the Datum interface.

func (*DString) Eval 

func (t *DString) Eval(_ *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*DString) Format 

func (d *DString) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*DString) IsMax 

func (*DString) IsMax(_ *EvalContext) bool

IsMax implements the Datum interface.

func (*DString) IsMin 

func (d *DString) IsMin(_ *EvalContext) bool

IsMin implements the Datum interface.

func (*DString) Max 

func (d *DString) Max(_ *EvalContext) (Datum, bool)

Max implements the Datum interface.

func (*DString) Min 

func (d *DString) Min(_ *EvalContext) (Datum, bool)

Min implements the Datum interface.

func (*DString) Next 

func (d *DString) Next(_ *EvalContext) (Datum, bool)

Next implements the Datum interface.

func (*DString) Prev 

func (d *DString) Prev(_ *EvalContext) (Datum, bool)

Prev implements the Datum interface.

func (*DString) ResolvedType 

func (*DString) ResolvedType() *types.T

ResolvedType implements the TypedExpr interface.

func (*DString) Size 

func (d *DString) Size() uintptr

Size implements the Datum interface.

func (*DString) String 

func (node *DString) String() string

func (*DString) TypeCheck 

func (d *DString) TypeCheck(_ context.Context, _ *SemaContext, _ *types.T) (TypedExpr, error)

TypeCheck implements the Expr interface. It is implemented as an idempotent identity function for Datum.

func (*DString) Walk 

func (expr *DString) Walk(_ Visitor) Expr

Walk implements the Expr interface.

type DTime 

type DTime timeofday.TimeOfDay

DTime is the time Datum.

func MakeDTime 

func MakeDTime(t timeofday.TimeOfDay) *DTime

MakeDTime creates a DTime from a TimeOfDay.

func ParseDTime 

func ParseDTime(
	ctx ParseTimeContext, s string, precision time.Duration,
) (_ *DTime, dependsOnContext bool, _ error)

ParseDTime parses and returns the *DTime Datum value represented by the provided string, or an error if parsing is unsuccessful.

The dependsOnContext return value indicates if we had to consult the ParseTimeContext (either for the time or the local timezone).

func (*DTime) AmbiguousFormat 

func (*DTime) AmbiguousFormat() bool

AmbiguousFormat implements the Datum interface.

func (*DTime) Compare 

func (d *DTime) Compare(ctx *EvalContext, other Datum) int

Compare implements the Datum interface.

func (*DTime) CompareError 

func (d *DTime) CompareError(ctx *EvalContext, other Datum) (int, error)

CompareError implements the Datum interface.

func (*DTime) Eval 

func (t *DTime) Eval(_ *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*DTime) Format 

func (d *DTime) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*DTime) IsMax 

func (d *DTime) IsMax(_ *EvalContext) bool

IsMax implements the Datum interface.

func (*DTime) IsMin 

func (d *DTime) IsMin(_ *EvalContext) bool

IsMin implements the Datum interface.

func (*DTime) Max 

func (d *DTime) Max(_ *EvalContext) (Datum, bool)

Max implements the Datum interface.

func (*DTime) Min 

func (d *DTime) Min(_ *EvalContext) (Datum, bool)

Min implements the Datum interface.

func (*DTime) Next 

func (d *DTime) Next(ctx *EvalContext) (Datum, bool)

Next implements the Datum interface.

func (*DTime) Prev 

func (d *DTime) Prev(ctx *EvalContext) (Datum, bool)

Prev implements the Datum interface.

func (*DTime) ResolvedType 

func (*DTime) ResolvedType() *types.T

ResolvedType implements the TypedExpr interface.

func (*DTime) Round 

func (d *DTime) Round(precision time.Duration) *DTime

Round returns a new DTime to the specified precision.

func (*DTime) Size 

func (d *DTime) Size() uintptr

Size implements the Datum interface.

func (*DTime) String 

func (node *DTime) String() string

func (*DTime) TypeCheck 

func (d *DTime) TypeCheck(_ context.Context, _ *SemaContext, _ *types.T) (TypedExpr, error)

TypeCheck implements the Expr interface. It is implemented as an idempotent identity function for Datum.

func (*DTime) Walk 

func (expr *DTime) Walk(_ Visitor) Expr

Walk implements the Expr interface.

type DTimeTZ 

type DTimeTZ struct {
	timetz.TimeTZ
}

DTimeTZ is the time with time zone Datum.

func NewDTimeTZ 

func NewDTimeTZ(t timetz.TimeTZ) *DTimeTZ

NewDTimeTZ creates a DTimeTZ from a timetz.TimeTZ.

func NewDTimeTZFromLocation 

func NewDTimeTZFromLocation(t timeofday.TimeOfDay, loc *time.Location) *DTimeTZ

NewDTimeTZFromLocation creates a DTimeTZ from a TimeOfDay and time.Location.

func NewDTimeTZFromOffset 

func NewDTimeTZFromOffset(t timeofday.TimeOfDay, offsetSecs int32) *DTimeTZ

NewDTimeTZFromOffset creates a DTimeTZ from a TimeOfDay and offset.

func NewDTimeTZFromTime 

func NewDTimeTZFromTime(t time.Time) *DTimeTZ

NewDTimeTZFromTime creates a DTimeTZ from time.Time.

func ParseDTimeTZ 

func ParseDTimeTZ(
	ctx ParseTimeContext, s string, precision time.Duration,
) (_ *DTimeTZ, dependsOnContext bool, _ error)

ParseDTimeTZ parses and returns the *DTime Datum value represented by the provided string, or an error if parsing is unsuccessful.

The dependsOnContext return value indicates if we had to consult the ParseTimeContext (either for the time or the local timezone).

func (*DTimeTZ) AmbiguousFormat 

func (*DTimeTZ) AmbiguousFormat() bool

AmbiguousFormat implements the Datum interface.

func (*DTimeTZ) Compare 

func (d *DTimeTZ) Compare(ctx *EvalContext, other Datum) int

Compare implements the Datum interface.

func (*DTimeTZ) CompareError 

func (d *DTimeTZ) CompareError(ctx *EvalContext, other Datum) (int, error)

CompareError implements the Datum interface.

func (*DTimeTZ) Eval 

func (t *DTimeTZ) Eval(_ *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*DTimeTZ) Format 

func (d *DTimeTZ) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*DTimeTZ) IsMax 

func (d *DTimeTZ) IsMax(_ *EvalContext) bool

IsMax implements the Datum interface.

func (*DTimeTZ) IsMin 

func (d *DTimeTZ) IsMin(_ *EvalContext) bool

IsMin implements the Datum interface.

func (*DTimeTZ) Max 

func (d *DTimeTZ) Max(_ *EvalContext) (Datum, bool)

Max implements the Datum interface.

func (*DTimeTZ) Min 

func (d *DTimeTZ) Min(_ *EvalContext) (Datum, bool)

Min implements the Datum interface.

func (*DTimeTZ) Next 

func (d *DTimeTZ) Next(ctx *EvalContext) (Datum, bool)

Next implements the Datum interface.

func (*DTimeTZ) Prev 

func (d *DTimeTZ) Prev(ctx *EvalContext) (Datum, bool)

Prev implements the Datum interface.

func (*DTimeTZ) ResolvedType 

func (*DTimeTZ) ResolvedType() *types.T

ResolvedType implements the TypedExpr interface.

func (*DTimeTZ) Round 

func (d *DTimeTZ) Round(precision time.Duration) *DTimeTZ

Round returns a new DTimeTZ to the specified precision.

func (*DTimeTZ) Size 

func (d *DTimeTZ) Size() uintptr

Size implements the Datum interface.

func (*DTimeTZ) String 

func (node *DTimeTZ) String() string

func (*DTimeTZ) TypeCheck 

func (d *DTimeTZ) TypeCheck(_ context.Context, _ *SemaContext, _ *types.T) (TypedExpr, error)

TypeCheck implements the Expr interface. It is implemented as an idempotent identity function for Datum.

func (*DTimeTZ) Walk 

func (expr *DTimeTZ) Walk(_ Visitor) Expr

Walk implements the Expr interface.

type DTimestamp 

type DTimestamp struct {
	// Time always has UTC location.
	time.Time
}

DTimestamp is the timestamp Datum.

func AsDTimestamp 

func AsDTimestamp(e Expr) (DTimestamp, bool)

AsDTimestamp attempts to retrieve a DTimestamp from an Expr, returning a DTimestamp and a flag signifying whether the assertion was successful. The function should be used instead of direct type assertions wherever a *DTimestamp wrapped by a *DOidWrapper is possible.

func DecimalToInexactDTimestamp 

func DecimalToInexactDTimestamp(d *DDecimal) (*DTimestamp, error)

DecimalToInexactDTimestamp is the inverse of TimestampToDecimal. It converts a decimal constructed from an hlc.Timestamp into an approximate DTimestamp containing the walltime of the hlc.Timestamp.

func MakeDTimestamp 

func MakeDTimestamp(t time.Time, precision time.Duration) (*DTimestamp, error)

MakeDTimestamp creates a DTimestamp with specified precision.

func MustBeDTimestamp 

func MustBeDTimestamp(e Expr) DTimestamp

MustBeDTimestamp attempts to retrieve a DTimestamp from an Expr, panicking if the assertion fails.

func MustMakeDTimestamp 

func MustMakeDTimestamp(t time.Time, precision time.Duration) *DTimestamp

MustMakeDTimestamp wraps MakeDTimestamp but panics if there is an error. This is intended for testing applications only.

func ParseDTimestamp 

func ParseDTimestamp(
	ctx ParseTimeContext, s string, precision time.Duration,
) (_ *DTimestamp, dependsOnContext bool, _ error)

ParseDTimestamp parses and returns the *DTimestamp Datum value represented by the provided string in UTC, or an error if parsing is unsuccessful.

The dependsOnContext return value indicates if we had to consult the ParseTimeContext (either for the time or the local timezone).

func TimestampToInexactDTimestamp 

func TimestampToInexactDTimestamp(ts hlc.Timestamp) *DTimestamp

TimestampToInexactDTimestamp converts the logical timestamp into an inexact DTimestamp by dropping the logical counter and using the wall time at the microsecond precision.

func (*DTimestamp) AmbiguousFormat 

func (*DTimestamp) AmbiguousFormat() bool

AmbiguousFormat implements the Datum interface.

func (*DTimestamp) Compare 

func (d *DTimestamp) Compare(ctx *EvalContext, other Datum) int

Compare implements the Datum interface.

func (*DTimestamp) CompareError 

func (d *DTimestamp) CompareError(ctx *EvalContext, other Datum) (int, error)

CompareError implements the Datum interface.

func (*DTimestamp) Eval 

func (t *DTimestamp) Eval(_ *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*DTimestamp) Format 

func (d *DTimestamp) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*DTimestamp) IsMax 

func (d *DTimestamp) IsMax(_ *EvalContext) bool

IsMax implements the Datum interface.

func (*DTimestamp) IsMin 

func (d *DTimestamp) IsMin(_ *EvalContext) bool

IsMin implements the Datum interface.

func (*DTimestamp) Max 

func (d *DTimestamp) Max(_ *EvalContext) (Datum, bool)

Max implements the Datum interface.

func (*DTimestamp) Min 

func (d *DTimestamp) Min(_ *EvalContext) (Datum, bool)

Min implements the Datum interface.

func (*DTimestamp) Next 

func (d *DTimestamp) Next(ctx *EvalContext) (Datum, bool)

Next implements the Datum interface.

func (*DTimestamp) Prev 

func (d *DTimestamp) Prev(ctx *EvalContext) (Datum, bool)

Prev implements the Datum interface.

func (*DTimestamp) ResolvedType 

func (*DTimestamp) ResolvedType() *types.T

ResolvedType implements the TypedExpr interface.

func (*DTimestamp) Round 

func (d *DTimestamp) Round(precision time.Duration) (*DTimestamp, error)

Round returns a new DTimestamp to the specified precision.

func (*DTimestamp) Size 

func (d *DTimestamp) Size() uintptr

Size implements the Datum interface.

func (*DTimestamp) String 

func (node *DTimestamp) String() string

func (*DTimestamp) TypeCheck 

func (d *DTimestamp) TypeCheck(_ context.Context, _ *SemaContext, _ *types.T) (TypedExpr, error)

TypeCheck implements the Expr interface. It is implemented as an idempotent identity function for Datum.

func (*DTimestamp) Walk 

func (expr *DTimestamp) Walk(_ Visitor) Expr

Walk implements the Expr interface.

type DTimestampTZ 

type DTimestampTZ struct {
	time.Time
}

DTimestampTZ is the timestamp Datum that is rendered with session offset.

func AsDTimestampTZ 

func AsDTimestampTZ(e Expr) (DTimestampTZ, bool)

AsDTimestampTZ attempts to retrieve a DTimestampTZ from an Expr, returning a DTimestampTZ and a flag signifying whether the assertion was successful. The function should be used instead of direct type assertions wherever a *DTimestamp wrapped by a *DOidWrapper is possible.

func DecimalToInexactDTimestampTZ 

func DecimalToInexactDTimestampTZ(d *DDecimal) (*DTimestampTZ, error)

DecimalToInexactDTimestampTZ is the inverse of TimestampToDecimal. It converts a decimal constructed from an hlc.Timestamp into an approximate DTimestampTZ containing the walltime of the hlc.Timestamp.

func MakeDTimestampTZ 

func MakeDTimestampTZ(t time.Time, precision time.Duration) (*DTimestampTZ, error)

MakeDTimestampTZ creates a DTimestampTZ with specified precision.

func MakeDTimestampTZFromDate 

func MakeDTimestampTZFromDate(loc *time.Location, d *DDate) (*DTimestampTZ, error)

MakeDTimestampTZFromDate creates a DTimestampTZ from a DDate. This will be equivalent to the midnight of the given zone.

func MustBeDTimestampTZ 

func MustBeDTimestampTZ(e Expr) DTimestampTZ

MustBeDTimestampTZ attempts to retrieve a DTimestampTZ from an Expr, panicking if the assertion fails.

func MustMakeDTimestampTZ 

func MustMakeDTimestampTZ(t time.Time, precision time.Duration) *DTimestampTZ

MustMakeDTimestampTZ wraps MakeDTimestampTZ but panics if there is an error. This is intended for testing applications only.

func ParseDTimestampTZ 

func ParseDTimestampTZ(
	ctx ParseTimeContext, s string, precision time.Duration,
) (_ *DTimestampTZ, dependsOnContext bool, _ error)

ParseDTimestampTZ parses and returns the *DTimestampTZ Datum value represented by the provided string in the provided location, or an error if parsing is unsuccessful.

The dependsOnContext return value indicates if we had to consult the ParseTimeContext (either for the time or the local timezone).

func (*DTimestampTZ) AmbiguousFormat 

func (*DTimestampTZ) AmbiguousFormat() bool

AmbiguousFormat implements the Datum interface.

func (*DTimestampTZ) Compare 

func (d *DTimestampTZ) Compare(ctx *EvalContext, other Datum) int

Compare implements the Datum interface.

func (*DTimestampTZ) CompareError 

func (d *DTimestampTZ) CompareError(ctx *EvalContext, other Datum) (int, error)

CompareError implements the Datum interface.

func (*DTimestampTZ) Eval 

func (t *DTimestampTZ) Eval(_ *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*DTimestampTZ) EvalAtTimeZone 

func (d *DTimestampTZ) EvalAtTimeZone(ctx *EvalContext, loc *time.Location) (*DTimestamp, error)

EvalAtTimeZone evaluates this TimestampTZ as if it were in the supplied location, returning a timestamp without a timezone.

func (*DTimestampTZ) Format 

func (d *DTimestampTZ) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*DTimestampTZ) IsMax 

func (d *DTimestampTZ) IsMax(_ *EvalContext) bool

IsMax implements the Datum interface.

func (*DTimestampTZ) IsMin 

func (d *DTimestampTZ) IsMin(_ *EvalContext) bool

IsMin implements the Datum interface.

func (*DTimestampTZ) Max 

func (d *DTimestampTZ) Max(_ *EvalContext) (Datum, bool)

Max implements the Datum interface.

func (*DTimestampTZ) Min 

func (d *DTimestampTZ) Min(_ *EvalContext) (Datum, bool)

Min implements the Datum interface.

func (*DTimestampTZ) Next 

func (d *DTimestampTZ) Next(ctx *EvalContext) (Datum, bool)

Next implements the Datum interface.

func (*DTimestampTZ) Prev 

func (d *DTimestampTZ) Prev(ctx *EvalContext) (Datum, bool)

Prev implements the Datum interface.

func (*DTimestampTZ) ResolvedType 

func (*DTimestampTZ) ResolvedType() *types.T

ResolvedType implements the TypedExpr interface.

func (*DTimestampTZ) Round 

func (d *DTimestampTZ) Round(precision time.Duration) (*DTimestampTZ, error)

Round returns a new DTimestampTZ to the specified precision.

func (*DTimestampTZ) Size 

func (d *DTimestampTZ) Size() uintptr

Size implements the Datum interface.

func (*DTimestampTZ) String 

func (node *DTimestampTZ) String() string

func (*DTimestampTZ) TypeCheck 

func (d *DTimestampTZ) TypeCheck(_ context.Context, _ *SemaContext, _ *types.T) (TypedExpr, error)

TypeCheck implements the Expr interface. It is implemented as an idempotent identity function for Datum.

func (*DTimestampTZ) Walk 

func (expr *DTimestampTZ) Walk(_ Visitor) Expr

Walk implements the Expr interface.

type DTuple 

type DTuple struct {
	D Datums
	// contains filtered or unexported fields
}

DTuple is the tuple Datum.

func AsDTuple 

func AsDTuple(e Expr) (*DTuple, bool)

AsDTuple attempts to retrieve a *DTuple from an Expr, returning a *DTuple and a flag signifying whether the assertion was successful. The function should be used instead of direct type assertions wherever a *DTuple wrapped by a *DOidWrapper is possible.

func MakeDTuple 

func MakeDTuple(typ *types.T, d ...Datum) DTuple

MakeDTuple creates a DTuple with the provided datums. See NewDTuple.

func MustBeDTuple 

func MustBeDTuple(e Expr) *DTuple

MustBeDTuple attempts to retrieve a *DTuple from an Expr, panicking if the assertion fails.

func NewDTuple 

func NewDTuple(typ *types.T, d ...Datum) *DTuple

NewDTuple creates a *DTuple with the provided datums. When creating a new DTuple with Datums that are known to be sorted in ascending order, chain this call with DTuple.SetSorted.

func NewDTupleWithLen 

func NewDTupleWithLen(typ *types.T, l int) *DTuple

NewDTupleWithLen creates a *DTuple with the provided length.

func ParseDTupleFromString 

func ParseDTupleFromString(
	ctx ParseTimeContext, s string, t *types.T,
) (_ *DTuple, dependsOnContext bool, _ error)

ParseDTupleFromString parses the string-form of constructing tuples, handling cases such as `'(1,2,3)'::record`. The input type t is the type of the tuple to parse.

The dependsOnContext return value indicates if we had to consult the ParseTimeContext (either for the time or the local timezone).

func (*DTuple) AmbiguousFormat 

func (*DTuple) AmbiguousFormat() bool

AmbiguousFormat implements the Datum interface.

func (*DTuple) AssertSorted 

func (d *DTuple) AssertSorted()

AssertSorted asserts that the DTuple is sorted.

func (*DTuple) Compare 

func (d *DTuple) Compare(ctx *EvalContext, other Datum) int

Compare implements the Datum interface.

func (*DTuple) CompareError 

func (d *DTuple) CompareError(ctx *EvalContext, other Datum) (int, error)

CompareError implements the Datum interface.

func (*DTuple) ContainsNull 

func (d *DTuple) ContainsNull() bool

ContainsNull returns true if the tuple contains NULL, possibly nested inside other tuples. For example, all the following tuples contain NULL: 

(1, 2, NULL)
((1, 1), (2, NULL))
(((1, 1), (2, 2)), ((3, 3), (4, NULL)))

func (*DTuple) Eval 

func (t *DTuple) Eval(_ *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*DTuple) Format 

func (d *DTuple) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*DTuple) IsMax 

func (d *DTuple) IsMax(ctx *EvalContext) bool

IsMax implements the Datum interface.

func (*DTuple) IsMin 

func (d *DTuple) IsMin(ctx *EvalContext) bool

IsMin implements the Datum interface.

func (*DTuple) Max 

func (d *DTuple) Max(ctx *EvalContext) (Datum, bool)

Max implements the Datum interface.

func (*DTuple) Min 

func (d *DTuple) Min(ctx *EvalContext) (Datum, bool)

Min implements the Datum interface.

func (*DTuple) Next 

func (d *DTuple) Next(ctx *EvalContext) (Datum, bool)

Next implements the Datum interface.

func (*DTuple) Normalize 

func (d *DTuple) Normalize(ctx *EvalContext)

Normalize sorts and uniques the datum tuple.

func (*DTuple) Prev 

func (d *DTuple) Prev(ctx *EvalContext) (Datum, bool)

Prev implements the Datum interface.

func (*DTuple) ResolvedType 

func (d *DTuple) ResolvedType() *types.T

ResolvedType implements the TypedExpr interface.

func (*DTuple) SearchSorted 

func (d *DTuple) SearchSorted(ctx *EvalContext, target Datum) (int, bool)

SearchSorted searches the tuple for the target Datum, returning an int with the same contract as sort.Search and a boolean flag signifying whether the datum was found. It assumes that the DTuple is sorted and panics if it is not.

The target Datum cannot be NULL or a DTuple that contains NULLs (we cannot binary search in this case; for example `(1, NULL) IN ((1, 2), ..)` needs to be

func (*DTuple) SetSorted 

func (d *DTuple) SetSorted() *DTuple

SetSorted sets the sorted flag on the DTuple. This should be used when a DTuple is known to be sorted based on the datums added to it.

func (*DTuple) Size 

func (d *DTuple) Size() uintptr

Size implements the Datum interface.

func (*DTuple) Sorted 

func (d *DTuple) Sorted() bool

Sorted returns true if the tuple is known to be sorted (and contains no NULLs).

func (*DTuple) String 

func (node *DTuple) String() string

func (*DTuple) TypeCheck 

func (d *DTuple) TypeCheck(_ context.Context, _ *SemaContext, _ *types.T) (TypedExpr, error)

TypeCheck implements the Expr interface. It is implemented as an idempotent identity function for Datum.

func (*DTuple) Walk 

func (expr *DTuple) Walk(v Visitor) Expr

Walk implements the Expr interface.

type DUuid 

type DUuid struct {
	uuid.UUID
}

DUuid is the UUID Datum.

func NewDUuid 

func NewDUuid(d DUuid) *DUuid

NewDUuid is a helper routine to create a *DUuid initialized from its argument.

func ParseDUuidFromBytes 

func ParseDUuidFromBytes(b []byte) (*DUuid, error)

ParseDUuidFromBytes parses and returns the *DUuid Datum value represented by the provided input bytes, or an error.

func ParseDUuidFromString 

func ParseDUuidFromString(s string) (*DUuid, error)

ParseDUuidFromString parses and returns the *DUuid Datum value represented by the provided input string, or an error.

func (*DUuid) AmbiguousFormat 

func (*DUuid) AmbiguousFormat() bool

AmbiguousFormat implements the Datum interface.

func (*DUuid) Compare 

func (d *DUuid) Compare(ctx *EvalContext, other Datum) int

Compare implements the Datum interface.

func (*DUuid) CompareError 

func (d *DUuid) CompareError(ctx *EvalContext, other Datum) (int, error)

CompareError implements the Datum interface.

func (*DUuid) Eval 

func (t *DUuid) Eval(_ *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*DUuid) Format 

func (d *DUuid) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*DUuid) IsMax 

func (d *DUuid) IsMax(_ *EvalContext) bool

IsMax implements the Datum interface.

func (*DUuid) IsMin 

func (d *DUuid) IsMin(_ *EvalContext) bool

IsMin implements the Datum interface.

func (*DUuid) Max 

func (*DUuid) Max(_ *EvalContext) (Datum, bool)

Max implements the Datum interface.

func (*DUuid) Min 

func (*DUuid) Min(_ *EvalContext) (Datum, bool)

Min implements the Datum interface.

func (*DUuid) Next 

func (d *DUuid) Next(_ *EvalContext) (Datum, bool)

Next implements the Datum interface.

func (*DUuid) Prev 

func (d *DUuid) Prev(_ *EvalContext) (Datum, bool)

Prev implements the Datum interface.

func (*DUuid) ResolvedType 

func (*DUuid) ResolvedType() *types.T

ResolvedType implements the TypedExpr interface.

func (*DUuid) Size 

func (d *DUuid) Size() uintptr

Size implements the Datum interface.

func (*DUuid) String 

func (node *DUuid) String() string

func (*DUuid) TypeCheck 

func (d *DUuid) TypeCheck(_ context.Context, _ *SemaContext, _ *types.T) (TypedExpr, error)

TypeCheck implements the Expr interface. It is implemented as an idempotent identity function for Datum.

func (*DUuid) Walk 

func (expr *DUuid) Walk(_ Visitor) Expr

Walk implements the Expr interface.

type DVoid 

type DVoid struct{}

DVoid represents a void type.

func (*DVoid) AmbiguousFormat 

func (*DVoid) AmbiguousFormat() bool

AmbiguousFormat implements the Datum interface.

func (*DVoid) Compare 

func (d *DVoid) Compare(ctx *EvalContext, other Datum) int

Compare implements the Datum interface.

func (*DVoid) CompareError 

func (d *DVoid) CompareError(ctx *EvalContext, other Datum) (int, error)

CompareError implements the Datum interface.

func (*DVoid) Eval 

func (t *DVoid) Eval(_ *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*DVoid) Format 

func (d *DVoid) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*DVoid) IsMax 

func (d *DVoid) IsMax(_ *EvalContext) bool

IsMax implements the Datum interface.

func (*DVoid) IsMin 

func (d *DVoid) IsMin(_ *EvalContext) bool

IsMin implements the Datum interface.

func (*DVoid) Max 

func (d *DVoid) Max(_ *EvalContext) (Datum, bool)

Max implements the Datum interface.

func (*DVoid) Min 

func (d *DVoid) Min(_ *EvalContext) (Datum, bool)

Min implements the Datum interface.

func (*DVoid) Next 

func (d *DVoid) Next(ctx *EvalContext) (Datum, bool)

Next implements the Datum interface.

func (*DVoid) Prev 

func (d *DVoid) Prev(ctx *EvalContext) (Datum, bool)

Prev implements the Datum interface.

func (*DVoid) ResolvedType 

func (*DVoid) ResolvedType() *types.T

ResolvedType implements the TypedExpr interface.

func (*DVoid) Size 

func (d *DVoid) Size() uintptr

Size implements the Datum interface.

func (*DVoid) String 

func (node *DVoid) String() string

func (*DVoid) TypeCheck 

func (d *DVoid) TypeCheck(_ context.Context, _ *SemaContext, _ *types.T) (TypedExpr, error)

TypeCheck implements the Expr interface. It is implemented as an idempotent identity function for Datum.

func (*DVoid) Walk 

func (expr *DVoid) Walk(_ Visitor) Expr

Walk implements the Expr interface.

type DataPlacement 

type DataPlacement uint32

DataPlacement represents the desired data placement strategy for a given database. 

const (
	// DataPlacementUnspecified indicates an unspecified placement policy.
	// This will get translated to the default value when persisted.
	DataPlacementUnspecified DataPlacement = iota
	// DataPlacementDefault indicates specified default data placement policy,
	DataPlacementDefault
	// DataPlacementRestricted indicates the database will not use non-voters for
	// REGIONAL BY [TABLE | ROW] tables.
	DataPlacementRestricted
)

func (*DataPlacement) Format 

func (node *DataPlacement) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*DataPlacement) TelemetryName 

func (node *DataPlacement) TelemetryName() string

TelemetryName returns a representation of DataPlacement suitable for telemetry.

type DatabaseListFlags 

type DatabaseListFlags struct {
	CommonLookupFlags
	// ExplicitPrefix, when set, will cause the returned table names to
	// have an explicit schema and catalog part.
	ExplicitPrefix bool
}

DatabaseListFlags is the flag struct suitable for GetObjectNamesAndIDs().

type DatabaseLookupFlags 

type DatabaseLookupFlags = CommonLookupFlags

DatabaseLookupFlags is the flag struct suitable for GetDatabaseDesc().

type DatabaseRegionConfig 

type DatabaseRegionConfig interface {
	IsValidRegionNameString(r string) bool
	PrimaryRegionString() string
}

DatabaseRegionConfig is a wrapper around multiregion.RegionConfig related methods which avoids a circular dependency between descpb and tree.

type Datum 

type Datum interface {
	TypedExpr

	// AmbiguousFormat indicates whether the result of formatting this Datum can
	// be interpreted into more than one type. Used with
	// fmtFlags.disambiguateDatumTypes.
	AmbiguousFormat() bool

	// Compare returns -1 if the receiver is less than other, 0 if receiver is
	// equal to other and +1 if receiver is greater than other.
	// TODO(rafi): Migrate all usages of this to CompareError, then delete this.
	Compare(ctx *EvalContext, other Datum) int

	// CompareError is the same as Compare, but it returns an error instead of
	// panicking.
	CompareError(ctx *EvalContext, other Datum) (int, error)

	// Prev returns the previous datum and true, if one exists, or nil and false.
	// The previous datum satisfies the following definition: if the receiver is
	// "b" and the returned datum is "a", then for every compatible datum "x", it
	// holds that "x < b" is true if and only if "x <= a" is true.
	//
	// The return value is undefined if IsMin(_ *EvalContext) returns true.
	//
	// TODO(#12022): for DTuple, the contract is actually that "x < b" (SQL order,
	// where NULL < x is unknown for all x) is true only if "x <= a"
	// (.Compare/encoding order, where NULL <= x is true for all x) is true. This
	// is okay for now: the returned datum is used only to construct a span, which
	// uses .Compare/encoding order and is guaranteed to be large enough by this
	// weaker contract. The original filter expression is left in place to catch
	// false positives.
	Prev(ctx *EvalContext) (Datum, bool)

	// IsMin returns true if the datum is equal to the minimum value the datum
	// type can hold.
	IsMin(ctx *EvalContext) bool

	// Next returns the next datum and true, if one exists, or nil and false
	// otherwise. The next datum satisfies the following definition: if the
	// receiver is "a" and the returned datum is "b", then for every compatible
	// datum "x", it holds that "x > a" is true if and only if "x >= b" is true.
	//
	// The return value is undefined if IsMax(_ *EvalContext) returns true.
	//
	// TODO(#12022): for DTuple, the contract is actually that "x > a" (SQL order,
	// where x > NULL is unknown for all x) is true only if "x >= b"
	// (.Compare/encoding order, where x >= NULL is true for all x) is true. This
	// is okay for now: the returned datum is used only to construct a span, which
	// uses .Compare/encoding order and is guaranteed to be large enough by this
	// weaker contract. The original filter expression is left in place to catch
	// false positives.
	Next(ctx *EvalContext) (Datum, bool)

	// IsMax returns true if the datum is equal to the maximum value the datum
	// type can hold.
	IsMax(ctx *EvalContext) bool

	// Max returns the upper value and true, if one exists, otherwise
	// nil and false. Used By Prev().
	Max(ctx *EvalContext) (Datum, bool)

	// Min returns the lower value, if one exists, otherwise nil and
	// false. Used by Next().
	Min(ctx *EvalContext) (Datum, bool)

	// Size returns a lower bound on the total size of the receiver in bytes,
	// including memory that is pointed at (even if shared between Datum
	// instances) but excluding allocation overhead.
	//
	// It holds for every Datum d that d.Size().
	Size() uintptr
}

Datum represents a SQL value.

func AdjustValueToType 

func AdjustValueToType(typ *types.T, inVal Datum) (outVal Datum, err error)

AdjustValueToType checks that the width (for strings, byte arrays, and bit strings) and scale (decimal). and, shape/srid (for geospatial types) fits the specified column type.

Additionally, some precision truncation may occur for the specified column type.

In case of decimals, it can truncate fractional digits in the input value in order to fit the target column. If the input value fits the target column, it is returned unchanged. If the input value can be truncated to fit, then a truncated copy is returned. Otherwise, an error is returned.

In the case of time, it can truncate fractional digits of time datums to its relevant rounding for the given type definition.

In the case of geospatial types, it will check whether the SRID and Shape in the datum matches the type definition.

This method is used by casts and parsing. It is important to note that this function will error if the given value is too wide for the given type. For explicit casts and parsing, inVal should be truncated before this function is called so that an error is not returned. For assignment casts, inVal should not be truncated before this function is called, so that an error is returned. The one exception for assignment casts is for the special "char" type. An assignment cast to "char" does not error and truncates a value if the width of the value is wider than a single character. For this exception, AdjustValueToType performs the truncation itself.

func AppendToMaybeNullArray 

func AppendToMaybeNullArray(typ *types.T, left Datum, right Datum) (Datum, error)

AppendToMaybeNullArray appends an element to an array. If the first argument is NULL, an array of one element is created.

func ConcatArrays 

func ConcatArrays(typ *types.T, left Datum, right Datum) (Datum, error)

ConcatArrays concatenates two arrays.

func EvalComparisonExprWithSubOperator 

func EvalComparisonExprWithSubOperator(
	ctx *EvalContext, expr *ComparisonExpr, left, right Datum,
) (Datum, error)

EvalComparisonExprWithSubOperator evaluates a comparison expression that has sub-operator.

func MakeAllDEnumsInType 

func MakeAllDEnumsInType(typ *types.T) []Datum

MakeAllDEnumsInType generates a slice of all values in an enum.

func MatchLikeEscape 

func MatchLikeEscape(
	ctx *EvalContext, unescaped, pattern, escape string, caseInsensitive bool,
) (Datum, error)

MatchLikeEscape matches 'unescaped' with 'pattern' using custom escape character 'escape' which must be either empty (which disables the escape mechanism) or a single unicode character.

func NewDIntVectorFromDArray 

func NewDIntVectorFromDArray(d *DArray) Datum

NewDIntVectorFromDArray is a helper routine to create a *DIntVector (implemented as a *DOidWrapper) initialized from an existing *DArray.

func NewDName 

func NewDName(d string) Datum

NewDName is a helper routine to create a *DName (implemented as a *DOidWrapper) initialized from a string.

func NewDNameFromDString 

func NewDNameFromDString(d *DString) Datum

NewDNameFromDString is a helper routine to create a *DName (implemented as a *DOidWrapper) initialized from an existing *DString.

func NewDOidVectorFromDArray 

func NewDOidVectorFromDArray(d *DArray) Datum

NewDOidVectorFromDArray is a helper routine to create a *DOidVector (implemented as a *DOidWrapper) initialized from an existing *DArray.

func NewDefaultDatum 

func NewDefaultDatum(evalCtx *EvalContext, t *types.T) (d Datum, err error)

NewDefaultDatum returns a default non-NULL datum value for the given type. This is used when updating non-NULL columns that are being added or dropped from a table, and there is no user-defined DEFAULT value available.

func ParseAndRequireString 

func ParseAndRequireString(
	t *types.T, s string, ctx ParseTimeContext,
) (d Datum, dependsOnContext bool, err error)

ParseAndRequireString parses s as type t for simple types. Collated strings are not handled.

The dependsOnContext return value indicates if we had to consult the ParseTimeContext (either for the time or the local timezone).

func ParseDatumPath 

func ParseDatumPath(evalCtx *EvalContext, str string, typs []types.Family) []Datum

ParseDatumPath parses a span key string like "/1/2/3". Only NULL and a subset of types are currently supported.

func PerformAssignmentCast 

func PerformAssignmentCast(ctx *EvalContext, d Datum, t *types.T) (Datum, error)

PerformAssignmentCast performs an assignment cast from the provided Datum to the specified type. The original datum is returned if its type is identical to the specified type.

It is similar to PerformCast, but differs because it errors when a bit-array or string values are too wide for the given type, rather than truncating the value. The one exception to this is casts to the special "char" type which are truncated.

func PerformCast 

func PerformCast(ctx *EvalContext, d Datum, t *types.T) (Datum, error)

PerformCast performs a cast from the provided Datum to the specified types.T. The original datum is returned if its type is identical to the specified type.

func PickFromTuple 

func PickFromTuple(ctx *EvalContext, greatest bool, args Datums) (Datum, error)

PickFromTuple picks the greatest (or least value) from a tuple.

func PrependToMaybeNullArray 

func PrependToMaybeNullArray(typ *types.T, left Datum, right Datum) (Datum, error)

PrependToMaybeNullArray prepends an element in the front of an arrray. If the argument is NULL, an array of one element is created.

func SampleDatum 

func SampleDatum(t *types.T) Datum

SampleDatum is intended to be a more lightweight version of RandDatum for when you just need one consistent example of a datum.

func SimilarPattern 

func SimilarPattern(pattern, escape string) (Datum, error)

SimilarPattern converts a SQL regexp 'pattern' to a POSIX regexp 'pattern' using custom escape token 'escape' which must be either empty (which disables the escape mechanism) or a single unicode character.

func SimilarToEscape 

func SimilarToEscape(ctx *EvalContext, unescaped, pattern, escape string) (Datum, error)

SimilarToEscape checks if 'unescaped' is SIMILAR TO 'pattern' using custom escape token 'escape' which must be either empty (which disables the escape mechanism) or a single unicode character.

func UnwrapDatum 

func UnwrapDatum(evalCtx *EvalContext, d Datum) Datum

UnwrapDatum returns the base Datum type for a provided datum, stripping an *DOidWrapper if present. This is useful for cases like type switches, where type aliases should be ignored.

type DatumAlloc 

type DatumAlloc struct {

	// AllocSize determines the number of objects allocated whenever we've used
	// up previously allocated ones. This field is exported so that the caller
	// could adjust it dynamically. If it is left unchanged by the caller, then
	// it will be set to defaultDatumAllocSize automatically.
	AllocSize int
	// contains filtered or unexported fields
}

DatumAlloc provides batch allocation of datum pointers, amortizing the cost of the allocations. NOTE: it *must* be passed in by a pointer.

func (*DatumAlloc) NewDBitArray 

func (a *DatumAlloc) NewDBitArray(v DBitArray) *DBitArray

NewDBitArray allocates a DBitArray.

func (*DatumAlloc) NewDBox2D 

func (a *DatumAlloc) NewDBox2D(v DBox2D) *DBox2D

NewDBox2D allocates a DBox2D.

func (*DatumAlloc) NewDBytes 

func (a *DatumAlloc) NewDBytes(v DBytes) *DBytes

NewDBytes allocates a DBytes.

func (*DatumAlloc) NewDCollatedString 

func (a *DatumAlloc) NewDCollatedString(contents string, locale string) (*DCollatedString, error)

NewDCollatedString allocates a DCollatedString.

func (*DatumAlloc) NewDDate 

func (a *DatumAlloc) NewDDate(v DDate) *DDate

NewDDate allocates a DDate.

func (*DatumAlloc) NewDDecimal 

func (a *DatumAlloc) NewDDecimal(v DDecimal) *DDecimal

NewDDecimal allocates a DDecimal.

func (*DatumAlloc) NewDEncodedKey 

func (a *DatumAlloc) NewDEncodedKey(v DEncodedKey) *DEncodedKey

NewDEncodedKey allocates a DEncodedKey.

func (*DatumAlloc) NewDEnum 

func (a *DatumAlloc) NewDEnum(v DEnum) *DEnum

NewDEnum allocates a DEnum.

func (*DatumAlloc) NewDFloat 

func (a *DatumAlloc) NewDFloat(v DFloat) *DFloat

NewDFloat allocates a DFloat.

func (*DatumAlloc) NewDGeography 

func (a *DatumAlloc) NewDGeography(v DGeography) *DGeography

NewDGeography allocates a DGeography.

func (*DatumAlloc) NewDGeographyEmpty 

func (a *DatumAlloc) NewDGeographyEmpty() *DGeography

NewDGeographyEmpty allocates a new empty DGeography for unmarshalling. After unmarshalling, DoneInitNewDGeo must be called to return unused pre-allocated space to the DatumAlloc.

func (*DatumAlloc) NewDGeometry 

func (a *DatumAlloc) NewDGeometry(v DGeometry) *DGeometry

NewDGeometry allocates a DGeometry.

func (*DatumAlloc) NewDGeometryEmpty 

func (a *DatumAlloc) NewDGeometryEmpty() *DGeometry

NewDGeometryEmpty allocates a new empty DGeometry for unmarshalling. After unmarshalling, DoneInitNewDGeo must be called to return unused pre-allocated space to the DatumAlloc.

func (*DatumAlloc) NewDIPAddr 

func (a *DatumAlloc) NewDIPAddr(v DIPAddr) *DIPAddr

NewDIPAddr allocates a DIPAddr.

func (*DatumAlloc) NewDInt 

func (a *DatumAlloc) NewDInt(v DInt) *DInt

NewDInt allocates a DInt.

func (*DatumAlloc) NewDInterval 

func (a *DatumAlloc) NewDInterval(v DInterval) *DInterval

NewDInterval allocates a DInterval.

func (*DatumAlloc) NewDName 

func (a *DatumAlloc) NewDName(v DString) Datum

NewDName allocates a DName.

func (*DatumAlloc) NewDOid 

func (a *DatumAlloc) NewDOid(v DOid) Datum

NewDOid allocates a DOid.

func (*DatumAlloc) NewDString 

func (a *DatumAlloc) NewDString(v DString) *DString

NewDString allocates a DString.

func (*DatumAlloc) NewDTime 

func (a *DatumAlloc) NewDTime(v DTime) *DTime

NewDTime allocates a DTime.

func (*DatumAlloc) NewDTimeTZ 

func (a *DatumAlloc) NewDTimeTZ(v DTimeTZ) *DTimeTZ

NewDTimeTZ allocates a DTimeTZ.

func (*DatumAlloc) NewDTimestamp 

func (a *DatumAlloc) NewDTimestamp(v DTimestamp) *DTimestamp

NewDTimestamp allocates a DTimestamp.

func (*DatumAlloc) NewDTimestampTZ 

func (a *DatumAlloc) NewDTimestampTZ(v DTimestampTZ) *DTimestampTZ

NewDTimestampTZ allocates a DTimestampTZ.

func (*DatumAlloc) NewDTuple 

func (a *DatumAlloc) NewDTuple(v DTuple) *DTuple

NewDTuple allocates a DTuple.

func (*DatumAlloc) NewDUuid 

func (a *DatumAlloc) NewDUuid(v DUuid) *DUuid

NewDUuid allocates a DUuid.

func (*DatumAlloc) NewDVoid 

func (a *DatumAlloc) NewDVoid() *DVoid

NewDVoid allocates a new DVoid.

func (*DatumAlloc) NewDatums 

func (a *DatumAlloc) NewDatums(num int) Datums

NewDatums allocates Datums of the specified size.

type Datums 

type Datums []Datum

Datums is a slice of Datum values.

func (Datums) Compare 

func (d Datums) Compare(evalCtx *EvalContext, other Datums) int

Compare does a lexicographical comparison and returns -1 if the receiver is less than other, 0 if receiver is equal to other and +1 if receiver is greater than other.

func (*Datums) Format 

func (d *Datums) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (Datums) IsDistinctFrom 

func (d Datums) IsDistinctFrom(evalCtx *EvalContext, other Datums) bool

IsDistinctFrom checks to see if two datums are distinct from each other. Any change in value is considered distinct, however, a NULL value is NOT considered distinct from another NULL value.

func (Datums) Len 

func (d Datums) Len() int

Len returns the number of Datum values.

func (*Datums) String 

func (node *Datums) String() string

type Deallocate 

type Deallocate struct {
	Name Name // empty for ALL
}

Deallocate represents a DEALLOCATE statement.

func (*Deallocate) Format 

func (node *Deallocate) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*Deallocate) StatementReturnType 

func (*Deallocate) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*Deallocate) StatementTag 

func (n *Deallocate) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*Deallocate) StatementType 

func (*Deallocate) StatementType() StatementType

StatementType implements the Statement interface.

func (*Deallocate) String 

func (n *Deallocate) String() string

type DeclareCursor 

type DeclareCursor struct {
	Name        Name
	Select      *Select
	Binary      bool
	Scroll      CursorScrollOption
	Sensitivity CursorSensitivity
	Hold        bool
}

DeclareCursor represents a DECLARE statement.

func (*DeclareCursor) Format 

func (node *DeclareCursor) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*DeclareCursor) StatementReturnType 

func (n *DeclareCursor) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*DeclareCursor) StatementTag 

func (*DeclareCursor) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*DeclareCursor) StatementType 

func (*DeclareCursor) StatementType() StatementType

StatementType implements the Statement interface.

func (*DeclareCursor) String 

func (n *DeclareCursor) String() string

type DefaultVal 

type DefaultVal struct{}

DefaultVal represents the DEFAULT expression.

func (DefaultVal) Eval 

func (expr DefaultVal) Eval(ctx *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (DefaultVal) Format 

func (node DefaultVal) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (DefaultVal) ResolvedType 

func (DefaultVal) ResolvedType() *types.T

ResolvedType implements the TypedExpr interface.

func (DefaultVal) String 

func (node DefaultVal) String() string

func (DefaultVal) TypeCheck 

func (expr DefaultVal) TypeCheck(
	_ context.Context, _ *SemaContext, desired *types.T,
) (TypedExpr, error)

TypeCheck implements the Expr interface.

func (DefaultVal) Walk 

func (expr DefaultVal) Walk(_ Visitor) Expr

Walk implements the Expr interface.

type DeferrableMode 

type DeferrableMode int

DeferrableMode holds the deferrable mode for a transaction. 

const (
	UnspecifiedDeferrableMode DeferrableMode = iota
	Deferrable
	NotDeferrable
)

DeferrableMode values.

func (DeferrableMode) String 

func (d DeferrableMode) String() string

type Delete 

type Delete struct {
	With      *With
	Table     TableExpr
	Where     *Where
	OrderBy   OrderBy
	Limit     *Limit
	Returning ReturningClause
}

Delete represents a DELETE statement.

func (*Delete) Format 

func (node *Delete) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*Delete) StatementReturnType 

func (n *Delete) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*Delete) StatementTag 

func (*Delete) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*Delete) StatementType 

func (*Delete) StatementType() StatementType

StatementType implements the Statement interface.

func (*Delete) String 

func (n *Delete) String() string

type DescriptorCoverage 

type DescriptorCoverage int32

DescriptorCoverage specifies whether or not a subset of descriptors were requested or if all the descriptors were requested, so all the descriptors are covered in a given backup. 

const (
	// RequestedDescriptors table coverage means that the backup is not
	// guaranteed to have all of the cluster data. This can be accomplished by
	// backing up a specific subset of tables/databases. Note that even if all
	// of the tables and databases have been included in the backup manually, a
	// backup is not said to have complete table coverage unless it was created
	// by a `BACKUP TO` command.
	RequestedDescriptors DescriptorCoverage = iota
	// AllDescriptors table coverage means that backup is guaranteed to have all the
	// relevant data in the cluster. These can only be created by running a
	// full cluster backup with `BACKUP TO`.
	AllDescriptors
)

type DesiredObjectKind 

type DesiredObjectKind int

DesiredObjectKind represents what kind of object is desired in a name resolution attempt. 

const (
	// TableObject is used when a table-like object is desired from resolution.
	TableObject DesiredObjectKind = iota
	// TypeObject is used when a type-like object is desired from resolution.
	TypeObject
)

type Direction 

type Direction int8

Direction for ordering results. 

const (
	DefaultDirection Direction = iota
	Ascending
	Descending
)

Direction values.

func (Direction) String 

func (d Direction) String() string

type Discard 

type Discard struct {
	Mode DiscardMode
}

Discard represents a DISCARD statement.

func (*Discard) Format 

func (node *Discard) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*Discard) StatementReturnType 

func (*Discard) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*Discard) StatementTag 

func (*Discard) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*Discard) StatementType 

func (*Discard) StatementType() StatementType

StatementType implements the Statement interface.

func (*Discard) String 

func (node *Discard) String() string

String implements the Statement interface.

type DiscardMode 

type DiscardMode int

DiscardMode is an enum of the various discard modes. 

const (
	// DiscardModeAll represents a DISCARD ALL statement.
	DiscardModeAll DiscardMode = iota
)

type DistinctOn 

type DistinctOn []Expr

DistinctOn represents a DISTINCT ON clause.

func (*DistinctOn) Format 

func (node *DistinctOn) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type DropBehavior 

type DropBehavior int

DropBehavior represents options for dropping schema elements. 

const (
	DropDefault DropBehavior = iota
	DropRestrict
	DropCascade
)

DropBehavior values.

func (DropBehavior) String 

func (d DropBehavior) String() string

type DropDatabase 

type DropDatabase struct {
	Name         Name
	IfExists     bool
	DropBehavior DropBehavior
}

DropDatabase represents a DROP DATABASE statement.

func (*DropDatabase) Format 

func (node *DropDatabase) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*DropDatabase) StatementReturnType 

func (*DropDatabase) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*DropDatabase) StatementTag 

func (*DropDatabase) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*DropDatabase) StatementType 

func (*DropDatabase) StatementType() StatementType

StatementType implements the Statement interface.

func (*DropDatabase) String 

func (n *DropDatabase) String() string

type DropIndex 

type DropIndex struct {
	IndexList    TableIndexNames
	IfExists     bool
	DropBehavior DropBehavior
	Concurrently bool
}

DropIndex represents a DROP INDEX statement.

func (*DropIndex) Format 

func (node *DropIndex) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*DropIndex) StatementReturnType 

func (*DropIndex) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*DropIndex) StatementTag 

func (*DropIndex) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*DropIndex) StatementType 

func (*DropIndex) StatementType() StatementType

StatementType implements the Statement interface.

func (*DropIndex) String 

func (n *DropIndex) String() string

type DropOwnedBy 

type DropOwnedBy struct {
	Roles        RoleSpecList
	DropBehavior DropBehavior
}

DropOwnedBy represents a DROP OWNED BY command.

func (*DropOwnedBy) Format 

func (node *DropOwnedBy) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*DropOwnedBy) StatementReturnType 

func (*DropOwnedBy) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*DropOwnedBy) StatementTag 

func (*DropOwnedBy) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*DropOwnedBy) StatementType 

func (*DropOwnedBy) StatementType() StatementType

StatementType implements the Statement interface.

func (*DropOwnedBy) String 

func (n *DropOwnedBy) String() string

type DropRole 

type DropRole struct {
	Names    RoleSpecList
	IsRole   bool
	IfExists bool
}

DropRole represents a DROP ROLE statement

func (*DropRole) Format 

func (node *DropRole) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*DropRole) StatementReturnType 

func (*DropRole) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*DropRole) StatementTag 

func (*DropRole) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*DropRole) StatementType 

func (*DropRole) StatementType() StatementType

StatementType implements the Statement interface.

func (*DropRole) String 

func (n *DropRole) String() string

type DropSchema 

type DropSchema struct {
	Names        ObjectNamePrefixList
	IfExists     bool
	DropBehavior DropBehavior
}

DropSchema represents a DROP SCHEMA command.

func (*DropSchema) Format 

func (node *DropSchema) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*DropSchema) StatementReturnType 

func (*DropSchema) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*DropSchema) StatementTag 

func (*DropSchema) StatementTag() string

StatementTag implements the Statement interface.

func (*DropSchema) StatementType 

func (*DropSchema) StatementType() StatementType

StatementType implements the Statement interface.

func (*DropSchema) String 

func (n *DropSchema) String() string

type DropSequence 

type DropSequence struct {
	Names        TableNames
	IfExists     bool
	DropBehavior DropBehavior
}

DropSequence represents a DROP SEQUENCE statement.

func (*DropSequence) Format 

func (node *DropSequence) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*DropSequence) StatementReturnType 

func (*DropSequence) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*DropSequence) StatementTag 

func (*DropSequence) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*DropSequence) StatementType 

func (*DropSequence) StatementType() StatementType

StatementType implements the Statement interface.

func (*DropSequence) String 

func (n *DropSequence) String() string

type DropTable 

type DropTable struct {
	Names        TableNames
	IfExists     bool
	DropBehavior DropBehavior
}

DropTable represents a DROP TABLE statement.

func (*DropTable) Format 

func (node *DropTable) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*DropTable) StatementReturnType 

func (*DropTable) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*DropTable) StatementTag 

func (*DropTable) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*DropTable) StatementType 

func (*DropTable) StatementType() StatementType

StatementType implements the Statement interface.

func (*DropTable) String 

func (n *DropTable) String() string

type DropType 

type DropType struct {
	Names        []*UnresolvedObjectName
	IfExists     bool
	DropBehavior DropBehavior
}

DropType represents a DROP TYPE command.

func (*DropType) Format 

func (node *DropType) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*DropType) StatementReturnType 

func (*DropType) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*DropType) StatementTag 

func (*DropType) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*DropType) StatementType 

func (*DropType) StatementType() StatementType

StatementType implements the Statement interface.

func (*DropType) String 

func (n *DropType) String() string

type DropView 

type DropView struct {
	Names          TableNames
	IfExists       bool
	DropBehavior   DropBehavior
	IsMaterialized bool
}

DropView represents a DROP VIEW statement.

func (*DropView) Format 

func (node *DropView) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*DropView) StatementReturnType 

func (*DropView) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*DropView) StatementTag 

func (*DropView) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*DropView) StatementType 

func (*DropView) StatementType() StatementType

StatementType implements the Statement interface.

func (*DropView) String 

func (n *DropView) String() string

type EnumValue 

type EnumValue string

EnumValue represents a single enum value.

func (*EnumValue) Format 

func (n *EnumValue) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type EnumValueList 

type EnumValueList []EnumValue

EnumValueList represents a list of enum values.

func (*EnumValueList) Format 

func (l *EnumValueList) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type EvalAsOfTimestampOption 

type EvalAsOfTimestampOption func(o evalAsOfTimestampOptions) evalAsOfTimestampOptions

EvalAsOfTimestampOption is an option to pass into EvalAsOfTimestamp. 

var EvalAsOfTimestampOptionAllowBoundedStaleness EvalAsOfTimestampOption = func(
	o evalAsOfTimestampOptions,
) evalAsOfTimestampOptions {
	o.allowBoundedStaleness = true
	return o
}

EvalAsOfTimestampOptionAllowBoundedStaleness signifies EvalAsOfTimestamp should not error if a bounded staleness query is found.

type EvalContext 

type EvalContext struct {
	// SessionDataStack stores the session variables accessible by the correct
	// context. Each element on the stack represents the beginning of a new
	// transaction or nested transaction (savepoints).
	SessionDataStack *sessiondata.Stack
	// TxnState is a string representation of the current transactional state.
	TxnState string
	// TxnReadOnly specifies if the current transaction is read-only.
	TxnReadOnly bool
	TxnImplicit bool

	//Settings    *cluster.Settings
	ClusterID   uuid.UUID
	ClusterName string

	// The statement timestamp. May be different for every statement.
	// Used for statement_timestamp().
	StmtTimestamp time.Time
	// The transaction timestamp. Needs to stay stable for the lifetime
	// of a transaction. Used for now(), current_timestamp(),
	// transaction_timestamp() and the like.
	TxnTimestamp time.Time

	// AsOfSystemTime denotes the explicit AS OF SYSTEM TIME timestamp for the
	// query, if any. If the query is not an AS OF SYSTEM TIME query,
	// AsOfSystemTime is nil.
	// TODO(knz): we may want to support table readers at arbitrary
	// timestamps, so that each FROM clause can have its own
	// timestamp. In that case, the timestamp would not be set
	// globally for the entire txn and this field would not be needed.
	AsOfSystemTime *AsOfSystemTime

	// Placeholders relates placeholder names to their type and, later, value.
	// This pointer should always be set to the location of the PlaceholderInfo
	// in the corresponding SemaContext during normal execution. Placeholders are
	// available during Eval to permit lookup of a particular placeholder's
	// underlying datum, if available.
	Placeholders *PlaceholderInfo

	// Annotations augments the AST with extra information. This pointer should
	// always be set to the location of the Annotations in the corresponding
	// SemaContext.
	Annotations *Annotations

	// IVarContainer is used to evaluate IndexedVars.
	IVarContainer IndexedVarContainer

	// Context holds the context in which the expression is evaluated.
	Context context.Context

	Planner EvalPlanner

	// Not using sql.JobExecContext type to avoid cycle dependency with sql package
	JobExecContext interface{}

	PrivilegedAccessor PrivilegedAccessor

	SessionAccessor EvalSessionAccessor

	ClientNoticeSender ClientNoticeSender

	Sequence SequenceOperators

	Tenant TenantOperator

	// Regions stores information about regions.
	Regions RegionOperator

	JoinTokenCreator JoinTokenCreator

	PreparedStatementState PreparedStatementState

	ReCache *RegexpCache

	// TODO(mjibson): remove prepareOnly in favor of a 2-step prepare-exec solution
	// that is also able to save the plan to skip work during the exec step.
	PrepareOnly bool

	// SkipNormalize indicates whether expressions should be normalized
	// (false) or not (true).  It is set to true conditionally by
	// EXPLAIN(TYPES[, NORMALIZE]).
	SkipNormalize bool

	CollationEnv CollationEnvironment

	TestingKnobs EvalContextTestingKnobs

	SQLStatsController SQLStatsController

	IndexUsageStatsController IndexUsageStatsController

	// CompactEngineSpan is used to force compaction of a span in a store.
	CompactEngineSpan CompactEngineSpanFunc
	// contains filtered or unexported fields
}

EvalContext defines the context in which to evaluate an expression, allowing the retrieval of state such as the node ID or statement start time.

ATTENTION: Some fields from this struct (particularly, but not exclusively, from SessionData) are also represented in execinfrapb.EvalContext. Whenever something that affects DistSQL execution is added, it needs to be marshaled through that proto too. TODO(andrei): remove or limit the duplication.

NOTE(andrei): EvalContext is dusty; it started as a collection of fields needed by expression evaluation, but it has grown quite large; some of the things in it don't seem to belong in this low-level package (e.g. Planner). In the sql package it is embedded by extendedEvalContext, which adds some more fields from the sql package. Through that extendedEvalContext, this struct now generally used by planNodes.

func (*EvalContext) Copy 

func (ctx *EvalContext) Copy() *EvalContext

Copy returns a deep copy of ctx.

func (*EvalContext) Ctx 

func (ctx *EvalContext) Ctx() context.Context

Ctx returns the session's context.

func (*EvalContext) FmtCtx 

func (ctx *EvalContext) FmtCtx(f FmtFlags, opts ...FmtCtxOption) *FmtCtx

FmtCtx creates a FmtCtx with the given options as well as the EvalContext's session data.

func (*EvalContext) GetDateStyle 

func (ctx *EvalContext) GetDateStyle() pgdate.DateStyle

GetDateStyle returns the session date style.

func (*EvalContext) GetIntervalStyle 

func (ctx *EvalContext) GetIntervalStyle() duration.IntervalStyle

GetIntervalStyle returns the session interval style.

func (*EvalContext) GetLocalRegion 

func (ctx *EvalContext) GetLocalRegion() (regionName string, ok bool)

GetLocalRegion returns the region name of the local processor on which we're executing.

func (*EvalContext) GetLocation 

func (ctx *EvalContext) GetLocation() *time.Location

GetLocation returns the session timezone.

func (*EvalContext) GetRelativeParseTime 

func (ctx *EvalContext) GetRelativeParseTime() time.Time

GetRelativeParseTime implements ParseTimeContext.

func (*EvalContext) GetStmtTimestamp 

func (ctx *EvalContext) GetStmtTimestamp() time.Time

GetStmtTimestamp retrieves the current statement timestamp as per the evaluation context. The timestamp is guaranteed to be nonzero.

func (*EvalContext) GetTxnTime 

func (ctx *EvalContext) GetTxnTime(precision time.Duration) *DTimeTZ

GetTxnTime retrieves the current transaction time as per the evaluation context.

func (*EvalContext) GetTxnTimeNoZone 

func (ctx *EvalContext) GetTxnTimeNoZone(precision time.Duration) *DTime

GetTxnTimeNoZone retrieves the current transaction time as per the evaluation context.

func (*EvalContext) GetTxnTimestamp 

func (ctx *EvalContext) GetTxnTimestamp(precision time.Duration) *DTimestampTZ

GetTxnTimestamp retrieves the current transaction timestamp as per the evaluation context. The timestamp is guaranteed to be nonzero.

func (*EvalContext) GetTxnTimestampNoZone 

func (ctx *EvalContext) GetTxnTimestampNoZone(precision time.Duration) *DTimestamp

GetTxnTimestampNoZone retrieves the current transaction timestamp as per the evaluation context. The timestamp is guaranteed to be nonzero.

func (*EvalContext) HasPlaceholders 

func (ctx *EvalContext) HasPlaceholders() bool

HasPlaceholders returns true if this EvalContext's placeholders have been assigned. Will be false during Prepare.

func (*EvalContext) NormalizeExpr 

func (ctx *EvalContext) NormalizeExpr(typedExpr TypedExpr) (TypedExpr, error)

NormalizeExpr normalizes a typed expression, simplifying where possible, but guaranteeing that the result of evaluating the expression is unchanged and that resulting expression tree is still well-typed. Example normalizations: 

(a)                   -> a
a = 1 + 1             -> a = 2
a + 1 = 2             -> a = 1
a BETWEEN b AND c     -> (a >= b) AND (a <= c)
a NOT BETWEEN b AND c -> (a < b) OR (a > c)

func (*EvalContext) PopIVarContainer 

func (ctx *EvalContext) PopIVarContainer()

PopIVarContainer discards the current IVarContainer on the EvalContext, replacing it with an older one.

func (*EvalContext) PushIVarContainer 

func (ctx *EvalContext) PushIVarContainer(c IndexedVarContainer)

PushIVarContainer replaces the current IVarContainer with a different one - pushing the current one onto a stack to be replaced later once PopIVarContainer is called.

func (*EvalContext) SessionData 

func (ctx *EvalContext) SessionData() *sessiondata.SessionData

SessionData returns the SessionData the current EvalCtx should use to eval.

func (*EvalContext) SetStmtTimestamp 

func (ctx *EvalContext) SetStmtTimestamp(ts time.Time)

SetStmtTimestamp sets the corresponding timestamp in the EvalContext.

func (*EvalContext) SetTxnTimestamp 

func (ctx *EvalContext) SetTxnTimestamp(ts time.Time)

SetTxnTimestamp sets the corresponding timestamp in the EvalContext.

type EvalContextTestingKnobs 

type EvalContextTestingKnobs struct {
	// AssertFuncExprReturnTypes indicates whether FuncExpr evaluations
	// should assert that the returned Datum matches the expected
	// ReturnType of the function.
	AssertFuncExprReturnTypes bool
	// AssertUnaryExprReturnTypes indicates whether UnaryExpr evaluations
	// should assert that the returned Datum matches the expected
	// ReturnType of the function.
	AssertUnaryExprReturnTypes bool
	// AssertBinaryExprReturnTypes indicates whether BinaryExpr
	// evaluations should assert that the returned Datum matches the
	// expected ReturnType of the function.
	AssertBinaryExprReturnTypes bool
	// DisableOptimizerRuleProbability is the probability that any given
	// transformation rule in the optimizer is disabled.
	DisableOptimizerRuleProbability float64
	// OptimizerCostPerturbation is used to randomly perturb the estimated
	// cost of each expression in the query tree for the purpose of creating
	// alternate query plans in the optimizer.
	OptimizerCostPerturbation float64
	// If set, mutations.MaxBatchSize and row.getKVBatchSize will be overridden
	// to use the non-test value.
	ForceProductionBatchSizes bool

	CallbackGenerators map[string]*CallbackValueGenerator
}

EvalContextTestingKnobs contains test knobs.

func (*EvalContextTestingKnobs) ModuleTestingKnobs 

func (*EvalContextTestingKnobs) ModuleTestingKnobs()

ModuleTestingKnobs is part of the base.ModuleTestingKnobs interface.

type EvalDatabase 

type EvalDatabase interface {

	// ParseQualifiedTableName parses a SQL string of the form
	// `[ database_name . ] [ schema_name . ] table_name`.
	// NB: this is deprecated! Use parser.ParseQualifiedTableName when possible.
	ParseQualifiedTableName(sql string) (*TableName, error)

	// ResolveTableName expands the given table name and
	// makes it point to a valid object.
	// If the database name is not given, it uses the search path to find it, and
	// sets it on the returned TableName.
	// It returns the ID of the resolved table, and an error if the table doesn't exist.
	ResolveTableName(ctx context.Context, tn *TableName) (ID, error)

	// SchemaExists looks up the schema with the given name and determines
	// whether it exists.
	SchemaExists(ctx context.Context, dbName, scName string) (found bool, err error)

	// IsTableVisible checks if the table with the given ID belongs to a schema
	// on the given sessiondata.SearchPath.
	IsTableVisible(
		ctx context.Context, curDB string, searchPath sessiondata.SearchPath, tableID oid.Oid,
	) (isVisible bool, exists bool, err error)

	// IsTypeVisible checks if the type with the given ID belongs to a schema
	// on the given sessiondata.SearchPath.
	IsTypeVisible(
		ctx context.Context, curDB string, searchPath sessiondata.SearchPath, typeID oid.Oid,
	) (isVisible bool, exists bool, err error)
}

EvalDatabase consists of functions that reference the session database and is to be used from EvalContext.

type EvalPlanner 

type EvalPlanner interface {
	EvalDatabase
	TypeResolver

	// ExecutorConfig returns *ExecutorConfig
	ExecutorConfig() interface{}

	// GetImmutableTableInterfaceByID returns an interface{} with
	// catalog.TableDescriptor to avoid a circular dependency.
	GetImmutableTableInterfaceByID(ctx context.Context, id int) (interface{}, error)

	// GetTypeFromValidSQLSyntax parses a column type when the input
	// string uses the parseable SQL representation of a type name, e.g.
	// `INT(13)`, `mytype`, `"mytype"`, `pg_catalog.int4` or `"public".mytype`.
	GetTypeFromValidSQLSyntax(sql string) (*types.T, error)

	// EvalSubquery returns the Datum for the given subquery node.
	EvalSubquery(expr *Subquery) (Datum, error)

	// UnsafeUpsertDescriptor is used to repair descriptors in dire
	// circumstances. See the comment on the planner implementation.
	UnsafeUpsertDescriptor(
		ctx context.Context, descID int64, encodedDescriptor []byte, force bool,
	) error

	// UnsafeDeleteDescriptor is used to repair descriptors in dire
	// circumstances. See the comment on the planner implementation.
	UnsafeDeleteDescriptor(ctx context.Context, descID int64, force bool) error

	// ForceDeleteTableData cleans up underlying data for a table
	// descriptor ID. See the comment on the planner implementation.
	ForceDeleteTableData(ctx context.Context, descID int64) error

	// UnsafeUpsertNamespaceEntry is used to repair namespace entries in dire
	// circumstances. See the comment on the planner implementation.
	UnsafeUpsertNamespaceEntry(
		ctx context.Context,
		parentID, parentSchemaID int64,
		name string,
		descID int64,
		force bool,
	) error

	// UnsafeDeleteNamespaceEntry is used to repair namespace entries in dire
	// circumstances. See the comment on the planner implementation.
	UnsafeDeleteNamespaceEntry(
		ctx context.Context,
		parentID, parentSchemaID int64,
		name string,
		descID int64,
		force bool,
	) error

	// ExternalReadFile reads the content from an external file URI.
	ExternalReadFile(ctx context.Context, uri string) ([]byte, error)

	// ExternalWriteFile writes the content to an external file URI.
	ExternalWriteFile(ctx context.Context, uri string, content []byte) error

	// DecodeGist exposes gist functionality to the builtin functions.
	DecodeGist(gist string) ([]string, error)

	// SerializeSessionState serializes the variables in the current session
	// and returns a state, in bytes form.
	SerializeSessionState() (*DBytes, error)

	// DeserializeSessionState deserializes the state as serialized variables
	// into the current session.
	DeserializeSessionState(state *DBytes) (*DBool, error)

	// CreateSessionRevivalToken creates a token that can be used to log in
	// as the current user, in bytes form.
	CreateSessionRevivalToken() (*DBytes, error)

	// ValidateSessionRevivalToken checks if the given bytes are a valid
	// session revival token.
	ValidateSessionRevivalToken(token *DBytes) (*DBool, error)

	// RevalidateUniqueConstraintsInCurrentDB verifies that all unique constraints
	// defined on tables in the current database are valid. In other words, it
	// verifies that for every table in the database with one or more unique
	// constraints, all rows in the table have unique values for every unique
	// constraint defined on the table.
	RevalidateUniqueConstraintsInCurrentDB(ctx context.Context) error

	// RevalidateUniqueConstraintsInTable verifies that all unique constraints
	// defined on the given table are valid. In other words, it verifies that all
	// rows in the table have unique values for every unique constraint defined on
	// the table.
	RevalidateUniqueConstraintsInTable(ctx context.Context, tableID int) error

	// RevalidateUniqueConstraint verifies that the given unique constraint on the
	// given table is valid. In other words, it verifies that all rows in the
	// table have unique values for the columns in the constraint. Returns an
	// error if validation fails or if constraintName is not actually a unique
	// constraint on the table.
	RevalidateUniqueConstraint(ctx context.Context, tableID int, constraintName string) error
}

EvalPlanner is a limited planner that can be used from EvalContext.

type EvalSessionAccessor 

type EvalSessionAccessor interface {
	// SetSessionVar sets a session variable to a new value. If isLocal is true,
	// the setting change is scoped to the current transaction (as in SET LOCAL).
	//
	// This interface only supports strings as this is sufficient for
	// pg_catalog.set_config().
	SetSessionVar(ctx context.Context, settingName, newValue string, isLocal bool) error

	// GetSessionVar retrieves the current value of a session variable.
	GetSessionVar(ctx context.Context, settingName string, missingOk bool) (bool, string, error)

	// HasAdminRole returns true iff the current session user has the admin role.
	HasAdminRole(ctx context.Context) (bool, error)

	// HasRoleOption returns nil iff the current session user has the specified
	// role option.
	HasRoleOption(ctx context.Context, roleOption roleoption.Option) (bool, error)
}

EvalSessionAccessor is a limited interface to access session variables.

type Execute 

type Execute struct {
	Name   Name
	Params Exprs
	// DiscardRows is set when we want to throw away all the rows rather than
	// returning for client (used for testing and benchmarking).
	DiscardRows bool
}

Execute represents an EXECUTE statement.

func (*Execute) Format 

func (node *Execute) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*Execute) StatementReturnType 

func (*Execute) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*Execute) StatementTag 

func (*Execute) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*Execute) StatementType 

func (*Execute) StatementType() StatementType

StatementType implements the Statement interface.

func (*Execute) String 

func (n *Execute) String() string

type Explain 

type Explain struct {
	ExplainOptions

	// Statement is the statement being EXPLAINed.
	Statement Statement
}

Explain represents an EXPLAIN statement.

func (*Explain) Format 

func (node *Explain) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*Explain) StatementReturnType 

func (*Explain) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*Explain) StatementTag 

func (*Explain) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*Explain) StatementType 

func (*Explain) StatementType() StatementType

StatementType implements the Statement interface.

func (*Explain) String 

func (n *Explain) String() string

type ExplainAnalyze 

type ExplainAnalyze struct {
	ExplainOptions

	// Statement is the statement being EXPLAINed.
	Statement Statement
}

ExplainAnalyze represents an EXPLAIN ANALYZE statement.

func (*ExplainAnalyze) Format 

func (node *ExplainAnalyze) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ExplainAnalyze) StatementReturnType 

func (*ExplainAnalyze) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ExplainAnalyze) StatementTag 

func (*ExplainAnalyze) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ExplainAnalyze) StatementType 

func (*ExplainAnalyze) StatementType() StatementType

StatementType implements the Statement interface.

func (*ExplainAnalyze) String 

func (n *ExplainAnalyze) String() string

type ExplainFlag 

type ExplainFlag uint8

ExplainFlag is a modifier in an EXPLAIN statement (like VERBOSE). 

const (
	ExplainFlagVerbose ExplainFlag = 1 + iota
	ExplainFlagTypes
	ExplainFlagEnv
	ExplainFlagCatalog
	ExplainFlagJSON
	ExplainFlagStages
	ExplainFlagDeps
	ExplainFlagMemo
	ExplainFlagShape
)

Explain flags.

func (ExplainFlag) String 

func (f ExplainFlag) String() string

type ExplainMode 

type ExplainMode uint8

ExplainMode indicates the mode of the explain. The default is ExplainPlan. 

const (
	// ExplainPlan shows information about the planNode tree for a query.
	ExplainPlan ExplainMode = 1 + iota

	// ExplainDistSQL shows the physical distsql plan for a query and whether a
	// query would be run in "auto" DISTSQL mode. See sql/explain_distsql.go for
	// details. If the ANALYZE option is included, the plan is also executed and
	// execution statistics are collected and shown in the diagram.
	ExplainDistSQL

	// ExplainOpt shows the optimized relational expression (from the cost-based
	// optimizer).
	ExplainOpt

	// ExplainVec shows the physical vectorized plan for a query and whether a
	// query would be run in "auto" vectorized mode.
	ExplainVec

	// ExplainDebug generates a statement diagnostics bundle; only used with
	// EXPLAIN ANALYZE.
	ExplainDebug

	// ExplainDDL generates a DDL plan diagram for the statement. Not allowed with
	//
	ExplainDDL

	// ExplainGist generates a plan "gist".
	ExplainGist
)

func (ExplainMode) String 

func (m ExplainMode) String() string

type ExplainOptions 

type ExplainOptions struct {
	Mode  ExplainMode
	Flags [numExplainFlags + 1]bool
}

ExplainOptions contains information about the options passed to an EXPLAIN statement.

type Export 

type Export struct {
	Query      *Select
	FileFormat string
	File       Expr
	Options    KVOptions
}

Export represents a EXPORT statement.

func (*Export) Format 

func (node *Export) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*Export) StatementReturnType 

func (*Export) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*Export) StatementTag 

func (*Export) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*Export) StatementType 

func (*Export) StatementType() StatementType

StatementType implements the Statement interface.

func (*Export) String 

func (n *Export) String() string

type Expr 

type Expr interface {
	fmt.Stringer
	NodeFormatter
	// Walk recursively walks all children using WalkExpr. If any children are changed, it returns a
	// copy of this node updated to point to the new children. Otherwise the receiver is returned.
	// For childless (leaf) Exprs, its implementation is empty.
	Walk(Visitor) Expr
	// TypeCheck transforms the Expr into a well-typed TypedExpr, which further permits
	// evaluation and type introspection, or an error if the expression cannot be well-typed.
	// When type checking is complete, if no error was reported, the expression and all
	// sub-expressions will be guaranteed to be well-typed, meaning that the method effectively
	// maps the Expr tree into a TypedExpr tree.
	//
	// The semaCtx parameter defines the context in which to perform type checking.
	// The desired parameter hints the desired type that the method's caller wants from
	// the resulting TypedExpr. It is not valid to call TypeCheck with a nil desired
	// type. Instead, call it with wildcard type types.Any if no specific type is
	// desired. This restriction is also true of most methods and functions related
	// to type checking.
	TypeCheck(ctx context.Context, semaCtx *SemaContext, desired *types.T) (TypedExpr, error)
}

Expr represents an expression.

func SimpleVisit 

func SimpleVisit(expr Expr, preFn SimpleVisitFn) (Expr, error)

SimpleVisit is a convenience wrapper for visitors that only have VisitPre code and don't return any results except an error. The given function is called in VisitPre for every node. The visitor stops as soon as an error is returned.

func StripMemoizedFuncs 

func StripMemoizedFuncs(expr Expr) Expr

StripMemoizedFuncs strips memoized function references from expression trees. This is necessary to permit equality checks using reflect.DeepEqual. Used in testing.

func StripParens 

func StripParens(expr Expr) Expr

StripParens strips any parentheses surrounding an expression and returns the inner expression. For instance: 

 1   -> 1
(1)  -> 1

((1)) -> 1

func WalkExpr 

func WalkExpr(v Visitor, expr Expr) (newExpr Expr, changed bool)

WalkExpr traverses the nodes in an expression.

NOTE: Do not count on the walkStmt/WalkExpr machinery to visit all expressions contained in a query. Only a sub-set of all expressions are found by walkStmt and subsequently traversed. See the comment below on walkStmt for details.

type Exprs 

type Exprs []Expr

Exprs represents a list of value expressions. It's not a valid expression because it's not parenthesized.

func (*Exprs) Format 

func (node *Exprs) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*Exprs) String 

func (node *Exprs) String() string

type FamilyTableDef 

type FamilyTableDef struct {
	Name    Name
	Columns NameList
}

FamilyTableDef represents a family definition within a CREATE TABLE statement.

func (*FamilyTableDef) Format 

func (node *FamilyTableDef) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type FetchCursor 

type FetchCursor struct {
	CursorStmt
}

FetchCursor represents a FETCH statement.

func (FetchCursor) Format 

func (f FetchCursor) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*FetchCursor) StatementReturnType 

func (n *FetchCursor) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*FetchCursor) StatementTag 

func (*FetchCursor) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*FetchCursor) StatementType 

func (*FetchCursor) StatementType() StatementType

StatementType implements the Statement interface.

func (*FetchCursor) String 

func (n *FetchCursor) String() string

type FetchType 

type FetchType int

FetchType represents the type of a FETCH (or MOVE) statement. 

const (
	// FetchNormal represents a FETCH statement that doesn't have a special
	// qualifier. It's used for FORWARD, BACKWARD, NEXT, and PRIOR.
	FetchNormal FetchType = iota
	// FetchRelative represents a FETCH RELATIVE statement.
	FetchRelative
	// FetchAbsolute represents a FETCH ABSOLUTE statement.
	FetchAbsolute
	// FetchFirst represents a FETCH FIRST statement.
	FetchFirst
	// FetchLast represents a FETCH LAST statement.
	FetchLast
	// FetchAll represents a FETCH ALL statement.
	FetchAll
	// FetchBackwardAll represents a FETCH BACKWARD ALL statement.
	FetchBackwardAll
)

func (FetchType) HasCount 

func (o FetchType) HasCount() bool

HasCount returns true if the given fetch type should be printed with an associated count.

func (FetchType) String 

func (o FetchType) String() string

type FmtCtx 

type FmtCtx struct {
	bytes.Buffer
	// contains filtered or unexported fields
}

FmtCtx is suitable for passing to Format() methods. It also exposes the underlying bytes.Buffer interface for convenience.

FmtCtx cannot be copied by value.

func NewFmtCtx 

func NewFmtCtx(f FmtFlags, opts ...FmtCtxOption) *FmtCtx

NewFmtCtx creates a FmtCtx; only flags that don't require Annotations can be used.

func (*FmtCtx) Close 

func (ctx *FmtCtx) Close()

Close releases a FmtCtx for reuse. Closing a FmtCtx is not required, but is recommended for performance-sensitive paths.

func (*FmtCtx) CloseAndGetString 

func (ctx *FmtCtx) CloseAndGetString() string

CloseAndGetString combines Close() and String().

func (*FmtCtx) FormatName 

func (ctx *FmtCtx) FormatName(s string)

FormatName formats a string as a name.

Note: prefer FormatNameP below when the string is already on the heap.

func (*FmtCtx) FormatNameP 

func (ctx *FmtCtx) FormatNameP(s *string)

FormatNameP formats a string reference as a name.

func (*FmtCtx) FormatNode 

func (ctx *FmtCtx) FormatNode(n NodeFormatter)

FormatNode recurses into a node for pretty-printing. Flag-driven special cases can hook into this.

func (*FmtCtx) FormatNodeSummary 

func (ctx *FmtCtx) FormatNodeSummary(n NodeFormatter)

FormatNodeSummary recurses into a node for pretty-printing a summarized version.

func (*FmtCtx) FormatTypeReference 

func (ctx *FmtCtx) FormatTypeReference(ref ResolvableTypeReference)

FormatTypeReference formats a ResolvableTypeReference.

func (*FmtCtx) HasFlags 

func (ctx *FmtCtx) HasFlags(f FmtFlags) bool

HasFlags returns true iff the given flags are set in the formatter context.

func (*FmtCtx) Printf 

func (ctx *FmtCtx) Printf(f string, args ...interface{})

Printf calls fmt.Fprintf on the linked bytes.Buffer. It is provided for convenience, to avoid having to call fmt.Fprintf(&ctx.Buffer, ...).

Note: DO NOT USE THIS TO INTERPOLATE %s ON NodeFormatter OBJECTS. This would call the String() method on them and would fail to reuse the same bytes buffer (and waste allocations). Instead use ctx.FormatNode().

func (*FmtCtx) SetDataConversionConfig 

func (ctx *FmtCtx) SetDataConversionConfig(
	dcc sessiondatapb.DataConversionConfig,
) sessiondatapb.DataConversionConfig

SetDataConversionConfig sets the DataConversionConfig on ctx and returns the old one.

func (*FmtCtx) WithFlags 

func (ctx *FmtCtx) WithFlags(flags FmtFlags, fn func())

WithFlags changes the flags in the FmtCtx, runs the given function, then restores the old flags.

func (*FmtCtx) WithReformatTableNames 

func (ctx *FmtCtx) WithReformatTableNames(tableNameFmt func(*FmtCtx, *TableName), fn func())

WithReformatTableNames modifies FmtCtx to to substitute the printing of table names using the provided function, calls fn, then restores the original table formatting.

type FmtCtxOption 

type FmtCtxOption func(*FmtCtx)

FmtCtxOption is an option to pass into NewFmtCtx.

func FmtAnnotations 

func FmtAnnotations(ann *Annotations) FmtCtxOption

FmtAnnotations adds annotations to the FmtCtx.

func FmtDataConversionConfig 

func FmtDataConversionConfig(dcc sessiondatapb.DataConversionConfig) FmtCtxOption

FmtDataConversionConfig modifies FmtCtx to contain items relevant for the given DataConversionConfig.

func FmtIndexedTypeFormat 

func FmtIndexedTypeFormat(fn func(*FmtCtx, *OIDTypeReference)) FmtCtxOption

FmtIndexedTypeFormat modifies FmtCtx to customize the printing of IDTypeReferences using the provided function.

func FmtIndexedVarFormat 

func FmtIndexedVarFormat(fn func(ctx *FmtCtx, idx int)) FmtCtxOption

FmtIndexedVarFormat modifies FmtCtx to customize the printing of IndexedVars using the provided function.

func FmtPlaceholderFormat 

func FmtPlaceholderFormat(placeholderFn func(_ *FmtCtx, _ *Placeholder)) FmtCtxOption

FmtPlaceholderFormat modifies FmtCtx to customize the printing of StarDatums using the provided function.

func FmtReformatTableNames 

func FmtReformatTableNames(tableNameFmt func(*FmtCtx, *TableName)) FmtCtxOption

FmtReformatTableNames modifies FmtCtx to to substitute the printing of table naFmtParsable using the provided function.

type FmtFlags 

type FmtFlags int

FmtFlags carries options for the pretty-printer. 

const (
	// FmtSimple instructs the pretty-printer to produce
	// a straightforward representation.
	FmtSimple FmtFlags = 0

	// FmtBareStrings instructs the pretty-printer to print strings and
	// other values without wrapping quotes. If the value is a SQL
	// string, the quotes will only be omitted if the string contains no
	// special characters. If it does contain special characters, the
	// string will be escaped and enclosed in e'...' regardless of
	// whether FmtBareStrings is specified. See FmtRawStrings below for
	// an alternative.
	FmtBareStrings FmtFlags = FmtFlags(lexbase.EncBareStrings)

	// FmtBareIdentifiers instructs the pretty-printer to print
	// identifiers without wrapping quotes in any case.
	FmtBareIdentifiers FmtFlags = FmtFlags(lexbase.EncBareIdentifiers)

	// FmtShowPasswords instructs the pretty-printer to not suppress passwords.
	// If not set, passwords are replaced by *****.
	FmtShowPasswords FmtFlags = FmtFlags(lexbase.EncFirstFreeFlagBit) << iota

	// FmtShowTypes instructs the pretty-printer to
	// annotate expressions with their resolved types.
	FmtShowTypes

	// FmtHideConstants instructs the pretty-printer to produce a
	// representation that does not disclose query-specific data. It
	// also shorten long lists in tuples, VALUES and array expressions.
	FmtHideConstants

	// FmtAnonymize instructs the pretty-printer to remove
	// any name but function names.
	// TODO(knz): temporary until a better solution is found for #13968
	FmtAnonymize

	// FmtAlwaysQualifyTableNames instructs the pretty-printer to
	// qualify table names, even if originally omitted.
	// Requires Annotations in the formatting context.
	FmtAlwaysQualifyTableNames

	// FmtAlwaysGroupExprs instructs the pretty-printer to enclose
	// sub-expressions between parentheses.
	// Used for testing.
	FmtAlwaysGroupExprs

	// FmtShowTableAliases reveals the table aliases.
	FmtShowTableAliases

	// FmtSymbolicSubqueries indicates that subqueries must be pretty-printed
	// using numeric notation (@S123).
	FmtSymbolicSubqueries

	// FmtParsableNumerics produces decimal and float representations
	// that are always parsable, even if they require a string
	// representation like -Inf. Negative values are preserved "inside"
	// the numeric by enclosing them within parentheses.
	FmtParsableNumerics

	// FmtPGCatalog is used to produce expressions formatted in a way that's as
	// close as possible to what clients expect to live in pg_catalog (e.g.
	// pg_attrdef.adbin, pg_constraint.condef and pg_indexes.indexdef columns).
	// Specifically, this strips type annotations (Postgres doesn't know what
	// those are), adds cast expressions for non-numeric constants, and formats
	// indexes in Postgres-specific syntax.
	FmtPGCatalog

	// FmtMarkRedactionNode instructs the pretty printer to redact datums,
	// constants, and simple names (i.e. Name, UnrestrictedName) from statements.
	FmtMarkRedactionNode

	// FmtSummary instructs the pretty printer to produced a summarized version
	// of the query, to pass to the frontend.
	//
	// Here are the following formats we support:
	// SELECT: SELECT {columns} FROM {tables}
	// - Show columns up to 15 characters.
	// - Show tables up to 30 characters.
	// - Hide column names in nested select queries.
	// INSERT/UPSERT: INSERT/UPSERT INTO {table} {columns}
	// - Show table up to 30 characters.
	// - Show columns up to 15 characters.
	// INSERT SELECT: INSERT INTO {table} SELECT {columns} FROM {table}
	// - Show table up to 30 characters.
	// - Show columns up to 15 characters.
	// UPDATE: UPDATE {table} SET {columns} WHERE {condition}
	// - Show table up to 30 characters.
	// - Show columns up to 15 characters.
	// - Show condition up to 15 characters.
	FmtSummary

	// FmtOmitNameRedaction instructs the pretty printer to omit redaction
	// for simple names (i.e. Name, UnrestrictedName) from statements.
	// This flag *overrides* `FmtMarkRedactionNode` above.
	FmtOmitNameRedaction
)

Basic bit definitions for the FmtFlags bitmask. 

const (
	// FmtPgwireText instructs the pretty-printer to use
	// a pg-compatible conversion to strings. See comments
	// in pgwire_encode.go.
	FmtPgwireText FmtFlags = fmtPgwireFormat | FmtFlags(lexbase.EncBareStrings)

	// FmtParsable instructs the pretty-printer to produce a representation that
	// can be parsed into an equivalent expression. If there is a chance that the
	// formatted data will be stored durably on disk or sent to other nodes,
	// then this formatting directive is not appropriate, and FmtSerializable
	// should be used instead.
	FmtParsable FmtFlags = fmtDisambiguateDatumTypes | FmtParsableNumerics

	// FmtSerializable instructs the pretty-printer to produce a representation
	// for expressions that can be serialized to disk. It serializes user defined
	// types using representations that are stable across changes of the type
	// itself. This should be used when serializing expressions that will be
	// stored on disk, like DEFAULT expressions of columns.
	FmtSerializable FmtFlags = FmtParsable | fmtStaticallyFormatUserDefinedTypes

	// FmtCheckEquivalence instructs the pretty-printer to produce a representation
	// that can be used to check equivalence of expressions. Specifically:
	//  - IndexedVars are formatted using symbolic notation (to disambiguate
	//    columns).
	//  - datum types are disambiguated with explicit type
	//    annotations. This is necessary because datums of different types
	//    can otherwise be formatted to the same string: (for example the
	//    DDecimal 1 and the DInt 1).
	//  - user defined types and datums of user defined types are formatted
	//    using static representations to avoid name resolution and invalidation
	//    due to changes in the underlying type.
	FmtCheckEquivalence FmtFlags = fmtSymbolicVars |
		fmtDisambiguateDatumTypes |
		FmtParsableNumerics |
		fmtStaticallyFormatUserDefinedTypes

	// FmtArrayToString is a special composite flag suitable
	// for the output of array_to_string(). This de-quotes
	// the strings enclosed in the array and skips the normal escaping
	// of strings. Special characters are hex-escaped.
	FmtArrayToString FmtFlags = FmtBareStrings | fmtRawStrings

	// FmtExport, if set, formats datums in a raw form suitable for
	// EXPORT, e.g. suitable for output into a CSV file. The intended
	// goal for this flag is to ensure values can be read back using the
	// ParseDatumStringAs() / ParseStringas() functions (IMPORT).
	//
	// We do not use FmtParsable for this purpose because FmtParsable
	// intends to preserve all the information useful to CockroachDB
	// internally, at the expense of readability by 3rd party tools.
	//
	// We also separate this set of flag from fmtArrayToString
	// because the behavior of array_to_string() is fixed for compatibility
	// with PostgreSQL, whereas EXPORT may evolve over time to support
	// other things (eg. fixing #33429).
	FmtExport FmtFlags = FmtBareStrings | fmtRawStrings
)

Composite/derived flag definitions follow.

func (FmtFlags) EncodeFlags 

func (f FmtFlags) EncodeFlags() lexbase.EncodeFlags

EncodeFlags returns the subset of the flags that are also lex encode flags.

func (FmtFlags) HasAnyFlags 

func (f FmtFlags) HasAnyFlags(subset FmtFlags) bool

HasAnyFlags tests whether any of the given flags are all set.

func (FmtFlags) HasFlags 

func (f FmtFlags) HasFlags(subset FmtFlags) bool

HasFlags tests whether the given flags are all set.

type ForeignKeyConstraintTableDef 

type ForeignKeyConstraintTableDef struct {
	Name        Name
	Table       TableName
	FromCols    NameList
	ToCols      NameList
	Actions     ReferenceActions
	Match       CompositeKeyMatchMethod
	IfNotExists bool
}

ForeignKeyConstraintTableDef represents a FOREIGN KEY constraint in the AST.

func (*ForeignKeyConstraintTableDef) Format 

func (node *ForeignKeyConstraintTableDef) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ForeignKeyConstraintTableDef) SetIfNotExists 

func (node *ForeignKeyConstraintTableDef) SetIfNotExists()

SetIfNotExists implements the ConstraintTableDef interface.

func (*ForeignKeyConstraintTableDef) SetName 

func (node *ForeignKeyConstraintTableDef) SetName(name Name)

SetName implements the ConstraintTableDef interface.

type From 

type From struct {
	Tables TableExprs
	AsOf   AsOfClause
}

From represents a FROM clause.

func (*From) Format 

func (node *From) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type FullBackupClause 

type FullBackupClause struct {
	AlwaysFull bool
	Recurrence Expr
}

FullBackupClause describes the frequency of full backups.

type FuncExpr 

type FuncExpr struct {
	Func  ResolvableFunctionReference
	Type  funcType
	Exprs Exprs
	// Filter is used for filters on aggregates: SUM(k) FILTER (WHERE k > 0)
	Filter    Expr
	WindowDef *WindowDef

	// AggType is used to specify the type of aggregation.
	AggType AggType
	// OrderBy is used for aggregations which specify an order. This same field
	// is used for any type of aggregation.
	OrderBy OrderBy
	// contains filtered or unexported fields
}

FuncExpr represents a function call.

func NewTypedFuncExpr 

func NewTypedFuncExpr(
	ref ResolvableFunctionReference,
	aggQualifier funcType,
	exprs TypedExprs,
	filter TypedExpr,
	windowDef *WindowDef,
	typ *types.T,
	props *FunctionProperties,
	overload *Overload,
) *FuncExpr

NewTypedFuncExpr returns a FuncExpr that is already well-typed and resolved.

func (*FuncExpr) CanHandleNulls 

func (node *FuncExpr) CanHandleNulls() bool

CanHandleNulls returns whether or not the function can handle null arguments.

func (*FuncExpr) Eval 

func (expr *FuncExpr) Eval(ctx *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*FuncExpr) EvalArgsAndGetGenerator 

func (expr *FuncExpr) EvalArgsAndGetGenerator(ctx *EvalContext) (ValueGenerator, error)

EvalArgsAndGetGenerator evaluates the arguments and instantiates a ValueGenerator for use by set projections.

func (*FuncExpr) Format 

func (node *FuncExpr) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*FuncExpr) IsDistSQLBlocklist 

func (node *FuncExpr) IsDistSQLBlocklist() bool

IsDistSQLBlocklist returns whether the function is not supported by DistSQL.

func (*FuncExpr) IsGeneratorApplication 

func (node *FuncExpr) IsGeneratorApplication() bool

IsGeneratorApplication returns true iff the function applied is a generator (SRF).

func (*FuncExpr) IsWindowFunctionApplication 

func (node *FuncExpr) IsWindowFunctionApplication() bool

IsWindowFunctionApplication returns true iff the function is being applied as a window function.

func (*FuncExpr) MaybeWrapError 

func (expr *FuncExpr) MaybeWrapError(err error) error

MaybeWrapError updates non-nil error depending on the FuncExpr to provide more context.

func (*FuncExpr) ResolvedOverload 

func (node *FuncExpr) ResolvedOverload() *Overload

ResolvedOverload returns the builtin definition; can only be called after Resolve (which happens during TypeCheck).

func (FuncExpr) ResolvedType 

func (ta FuncExpr) ResolvedType() *types.T

func (*FuncExpr) String 

func (node *FuncExpr) String() string

func (*FuncExpr) TypeCheck 

func (expr *FuncExpr) TypeCheck(
	ctx context.Context, semaCtx *SemaContext, desired *types.T,
) (TypedExpr, error)

TypeCheck implements the Expr interface.

func (*FuncExpr) Walk 

func (expr *FuncExpr) Walk(v Visitor) Expr

Walk implements the Expr interface.

type FunctionClass 

type FunctionClass int

FunctionClass specifies the class of the builtin function. 

const (
	// NormalClass is a standard builtin function.
	NormalClass FunctionClass = iota
	// AggregateClass is a builtin aggregate function.
	AggregateClass
	// WindowClass is a builtin window function.
	WindowClass
	// GeneratorClass is a builtin generator function.
	GeneratorClass
	// SQLClass is a builtin function that executes a SQL statement as a side
	// effect of the function call.
	//
	// For example, AddGeometryColumn is a SQLClass function that executes an
	// ALTER TABLE ... ADD COLUMN statement to add a geometry column to an
	// existing table. It returns metadata about the column added.
	//
	// All builtin functions of this class should include a definition for
	// Overload.SQLFn, which returns the SQL statement to be executed. They
	// should also include a definition for Overload.Fn, which is executed
	// like a NormalClass function and returns a Datum.
	SQLClass
)

type FunctionDefinition 

type FunctionDefinition struct {
	// Name is the short name of the function.
	Name string

	// Definition is the set of overloads for this function name.
	// We use []overloadImpl here although all the uses of this struct
	// could actually write a []Overload, because we want to share
	// the code with typeCheckOverloadedExprs().
	Definition []overloadImpl

	// FunctionProperties are the properties common to all overloads.
	FunctionProperties
}

FunctionDefinition implements a reference to the (possibly several) overloads for a built-in function.

func NewFunctionDefinition 

func NewFunctionDefinition(
	name string, props *FunctionProperties, def []Overload,
) *FunctionDefinition

NewFunctionDefinition allocates a function definition corresponding to the given built-in definition.

func (*FunctionDefinition) Format 

func (fd *FunctionDefinition) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*FunctionDefinition) String 

func (fd *FunctionDefinition) String() string

type FunctionProperties 

type FunctionProperties struct {
	// UnsupportedWithIssue, if non-zero indicates the built-in is not
	// really supported; the name is a placeholder. Value -1 just says
	// "not supported" without an issue to link; values > 0 provide an
	// issue number to link.
	UnsupportedWithIssue int

	// Undocumented, when set to true, indicates that the built-in function is
	// hidden from documentation. This is currently used to hide experimental
	// functionality as it is being developed.
	Undocumented bool

	// Private, when set to true, indicates the built-in function is not
	// available for use by user queries. This is currently used by some
	// aggregates due to issue #10495. Private functions are implicitly
	// considered undocumented.
	Private bool

	// NullableArgs is set to true when a function's definition can handle NULL
	// arguments. When set to true, the function will be given the chance to see NULL
	// arguments.
	//
	// When set to false, the function will directly result in NULL in the
	// presence of any NULL arguments without evaluating the function's
	// implementation defined in Overload.Fn. Therefore, if the function is
	// expected to produce side-effects with a NULL argument, NullableArgs must
	// be true. Note that if this behavior changes so that NullableArgs=false
	// functions can produce side-effects, the FoldFunctionWithNullArg optimizer
	// rule must be changed to avoid folding those functions.
	//
	// NOTE: when set, a function should be prepared for any of its arguments to
	// be NULL and should act accordingly.
	NullableArgs bool

	// DistsqlBlocklist is set to true when a function depends on
	// members of the EvalContext that are not marshaled by DistSQL
	// (e.g. planner). Currently used for DistSQL to determine if
	// expressions can be evaluated on a different node without sending
	// over the EvalContext.
	//
	// TODO(andrei): Get rid of the planner from the EvalContext and then we can
	// get rid of this blocklist.
	DistsqlBlocklist bool

	// Class is the kind of built-in function (normal/aggregate/window/etc.)
	Class FunctionClass

	// Category is used to generate documentation strings.
	Category string

	// AvailableOnPublicSchema indicates whether the function can be resolved
	// if it is found on the public schema.
	AvailableOnPublicSchema bool

	// ReturnLabels can be used to override the return column name of a
	// function in a FROM clause.
	// This satisfies a Postgres quirk where some json functions have
	// different return labels when used in SELECT or FROM clause.
	ReturnLabels []string

	// AmbiguousReturnType is true if the builtin's return type can't be
	// determined without extra context. This is used for formatting builtins
	// with the FmtParsable directive.
	AmbiguousReturnType bool

	// HasSequenceArguments is true if the builtin function takes in a sequence
	// name (string) and can be used in a scalar expression.
	// TODO(richardjcai): When implicit casting is supported, these builtins
	// should take RegClass as the arg type for the sequence name instead of
	// string, we will add a dependency on all RegClass types used in a view.
	HasSequenceArguments bool

	// CompositeInsensitive indicates that this function returns equal results
	// when evaluated on equal inputs. This is a non-trivial property for
	// composite types which can be equal but not identical
	// (e.g. decimals 1.0 and 1.00). For example, converting a decimal to string
	// is not CompositeInsensitive.
	//
	// See memo.CanBeCompositeSensitive.
	CompositeInsensitive bool
}

FunctionProperties defines the properties of the built-in functions that are common across all overloads.

func (*FunctionProperties) ShouldDocument 

func (fp *FunctionProperties) ShouldDocument() bool

ShouldDocument returns whether the built-in function should be included in external-facing documentation.

type FunctionReference 

type FunctionReference interface {
	fmt.Stringer
	NodeFormatter
	// contains filtered or unexported methods
}

FunctionReference is the common interface to UnresolvedName and QualifiedFunctionName.

type GeneratedAlwaysAsIdentity 

type GeneratedAlwaysAsIdentity struct {
	SeqOptions SequenceOptions
}

GeneratedAlwaysAsIdentity represents a column generated always as identity.

type GeneratedByDefAsIdentity 

type GeneratedByDefAsIdentity struct {
	SeqOptions SequenceOptions
}

GeneratedByDefAsIdentity represents a column generated by default as identity.

type GeneratedIdentityType 

type GeneratedIdentityType int

GeneratedIdentityType represents either GENERATED ALWAYS AS IDENTITY or GENERATED BY DEFAULT AS IDENTITY. 

const (
	GeneratedAlways GeneratedIdentityType = iota
	GeneratedByDefault
)

The values of GeneratedIdentity.GeneratedAsIdentityType.

type GeneratorFactory 

type GeneratorFactory func(ctx *EvalContext, args Datums) (ValueGenerator, error)

GeneratorFactory is the type of constructor functions for ValueGenerator objects.

type GeneratorWithExprsFactory 

type GeneratorWithExprsFactory func(ctx *EvalContext, args Exprs) (ValueGenerator, error)

GeneratorWithExprsFactory is an alternative constructor function type for ValueGenerators that gives implementations the ability to see the builtin's arguments before evaluation, as Exprs.

type Grant 

type Grant struct {
	Privileges      privilege.List
	Targets         TargetList
	Grantees        RoleSpecList
	WithGrantOption bool
}

Grant represents a GRANT statement.

func (*Grant) Format 

func (node *Grant) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*Grant) StatementReturnType 

func (*Grant) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*Grant) StatementTag 

func (*Grant) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*Grant) StatementType 

func (*Grant) StatementType() StatementType

StatementType implements the Statement interface.

func (*Grant) String 

func (n *Grant) String() string

type GrantRole 

type GrantRole struct {
	Roles       NameList
	Members     RoleSpecList
	AdminOption bool
}

GrantRole represents a GRANT <role> statement.

func (*GrantRole) Format 

func (node *GrantRole) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*GrantRole) StatementReturnType 

func (*GrantRole) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*GrantRole) StatementTag 

func (*GrantRole) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*GrantRole) StatementType 

func (*GrantRole) StatementType() StatementType

StatementType implements the Statement interface.

func (*GrantRole) String 

func (n *GrantRole) String() string

type GroupBy 

type GroupBy []Expr

GroupBy represents a GROUP BY clause.

func (*GroupBy) Format 

func (node *GroupBy) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type HasAnyPrivilegeResult 

type HasAnyPrivilegeResult = int8

HasAnyPrivilegeResult represents the non-error results of calling HasAnyPrivilege 

const (
	// HasPrivilege means at least one of the specified privileges is granted.
	HasPrivilege HasAnyPrivilegeResult = 1
	// HasNoPrivilege means no privileges are granted.
	HasNoPrivilege HasAnyPrivilegeResult = 0
	// ObjectNotFound means the object that privileges are being checked on was not found.
	ObjectNotFound HasAnyPrivilegeResult = -1
)

type HasPrivilegeSpecifier 

type HasPrivilegeSpecifier struct {

	// Database privilege
	DatabaseName *string
	DatabaseOID  *oid.Oid

	// Schema privilege
	// Schema OID must be converted to name before using HasPrivilegeSpecifier.
	SchemaName *string
	// SchemaDatabaseName is required when SchemaName is used.
	SchemaDatabaseName *string
	// Because schemas cannot be looked up by OID directly,
	// this controls whether the result is nil (originally queried by OID) or an error (originally queried by name).
	SchemaIsRequired *bool

	// Table privilege
	TableName *string
	TableOID  *oid.Oid
	// Sequences are stored internally as a table.
	IsSequence *bool

	// Column privilege
	// Requires TableName or TableOID.
	// Only one of ColumnName, ColumnAttNum is filled.
	ColumnName   *Name
	ColumnAttNum *uint32
}

HasPrivilegeSpecifier specifies an object to lookup privilege for. Only one of { DatabaseName, DatabaseOID, SchemaName, TableName, TableOID } is filled.

type HiddenConstraint 

type HiddenConstraint struct{}

HiddenConstraint represents HIDDEN on a column.

type HiddenFromShowQueries 

type HiddenFromShowQueries interface {
	// contains filtered or unexported methods
}

HiddenFromShowQueries is a pseudo-interface to be implemented by statements that should not show up in SHOW QUERIES (and are hence not cancellable using CANCEL QUERIES either). Usually implemented by statements that spawn jobs.

type HomogeneousType 

type HomogeneousType struct{}

HomogeneousType is a TypeList implementation that accepts any arguments, as long as all are the same type or NULL. The homogeneous constraint is enforced in typeCheckOverloadedExprs.

func (HomogeneousType) GetAt 

func (HomogeneousType) GetAt(i int) *types.T

GetAt is part of the TypeList interface.

func (HomogeneousType) Length 

func (HomogeneousType) Length() int

Length is part of the TypeList interface.

func (HomogeneousType) Match 

func (HomogeneousType) Match(types []*types.T) bool

Match is part of the TypeList interface.

func (HomogeneousType) MatchAt 

func (HomogeneousType) MatchAt(typ *types.T, i int) bool

MatchAt is part of the TypeList interface.

func (HomogeneousType) MatchLen 

func (HomogeneousType) MatchLen(l int) bool

MatchLen is part of the TypeList interface.

func (HomogeneousType) String 

func (HomogeneousType) String() string

func (HomogeneousType) Types 

func (HomogeneousType) Types() []*types.T

Types is part of the TypeList interface.

type ID 

type ID = catid.ColumnID

ID is a custom type for {Database,Table}Descriptor IDs.

type IfErrExpr 

type IfErrExpr struct {
	Cond    Expr
	Else    Expr
	ErrCode Expr
	// contains filtered or unexported fields
}

IfErrExpr represents an IFERROR expression.

func NewTypedIfErrExpr 

func NewTypedIfErrExpr(cond, orElse, errCode TypedExpr) *IfErrExpr

NewTypedIfErrExpr returns a new IfErrExpr that is verified to be well-typed.

func (*IfErrExpr) Eval 

func (expr *IfErrExpr) Eval(ctx *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*IfErrExpr) Format 

func (node *IfErrExpr) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (IfErrExpr) ResolvedType 

func (ta IfErrExpr) ResolvedType() *types.T

func (*IfErrExpr) String 

func (node *IfErrExpr) String() string

func (*IfErrExpr) TypeCheck 

func (expr *IfErrExpr) TypeCheck(
	ctx context.Context, semaCtx *SemaContext, desired *types.T,
) (TypedExpr, error)

TypeCheck implements the Expr interface.

func (*IfErrExpr) Walk 

func (expr *IfErrExpr) Walk(v Visitor) Expr

Walk implements the Expr interface.

type IfExpr 

type IfExpr struct {
	Cond Expr
	True Expr
	Else Expr
	// contains filtered or unexported fields
}

IfExpr represents an IF expression.

func (*IfExpr) Eval 

func (expr *IfExpr) Eval(ctx *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*IfExpr) Format 

func (node *IfExpr) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (IfExpr) ResolvedType 

func (ta IfExpr) ResolvedType() *types.T

func (*IfExpr) String 

func (node *IfExpr) String() string

func (*IfExpr) TypeCheck 

func (expr *IfExpr) TypeCheck(
	ctx context.Context, semaCtx *SemaContext, desired *types.T,
) (TypedExpr, error)

TypeCheck implements the Expr interface.

func (*IfExpr) TypedCondExpr 

func (node *IfExpr) TypedCondExpr() TypedExpr

TypedCondExpr returns the IfExpr's Cond expression as a TypedExpr.

func (*IfExpr) TypedElseExpr 

func (node *IfExpr) TypedElseExpr() TypedExpr

TypedElseExpr returns the IfExpr's Else expression as a TypedExpr.

func (*IfExpr) TypedTrueExpr 

func (node *IfExpr) TypedTrueExpr() TypedExpr

TypedTrueExpr returns the IfExpr's True expression as a TypedExpr.

func (*IfExpr) Walk 

func (expr *IfExpr) Walk(v Visitor) Expr

Walk implements the Expr interface.

type Import 

type Import struct {
	Table      *TableName
	Into       bool
	IntoCols   NameList
	FileFormat string
	Files      Exprs
	Bundle     bool
	Options    KVOptions
}

Import represents a IMPORT statement.

func (*Import) Format 

func (node *Import) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*Import) StatementReturnType 

func (*Import) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*Import) StatementTag 

func (*Import) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*Import) StatementType 

func (*Import) StatementType() StatementType

StatementType implements the Statement interface.

func (*Import) String 

func (n *Import) String() string

type IndexElem 

type IndexElem struct {
	// Column is set if this is a simple column reference (the common case).
	Column Name
	// Expr is set if the index element is an expression (part of an expression
	// index). If set, Column is empty.
	Expr       Expr
	Direction  Direction
	NullsOrder NullsOrder
}

IndexElem represents a column with a direction in a CREATE INDEX statement.

func (*IndexElem) Format 

func (node *IndexElem) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type IndexElemList 

type IndexElemList []IndexElem

IndexElemList is list of IndexElem.

func (*IndexElemList) Format 

func (l *IndexElemList) Format(ctx *FmtCtx)

Format pretty-prints the contained names separated by commas. Format implements the NodeFormatter interface.

type IndexFlags 

type IndexFlags struct {
	Index   UnrestrictedName
	IndexID IndexID
	// Direction of the scan, if provided. Can only be set if
	// one of Index or IndexID is set.
	Direction Direction
	// NoIndexJoin cannot be specified together with an index.
	NoIndexJoin bool
	// NoZigzagJoin indicates we should not plan a zigzag join for this scan.
	NoZigzagJoin bool
	// NoFullScan indicates we should constrain this scan.
	NoFullScan bool
	// IgnoreForeignKeys disables optimizations based on outbound foreign key
	// references from this table. This is useful in particular for scrub queries
	// used to verify the consistency of foreign key relations.
	IgnoreForeignKeys bool
	// IgnoreUniqueWithoutIndexKeys disables optimizations based on unique without
	// index constraints.
	IgnoreUniqueWithoutIndexKeys bool
	// Zigzag hinting fields are distinct:
	// ForceZigzag means we saw a TABLE@{FORCE_ZIGZAG}
	// ZigzagIndexes means we saw TABLE@{FORCE_ZIGZAG=name}
	// ZigzagIndexIDs means we saw TABLE@{FORCE_ZIGZAG=[ID]}
	// The only allowable combinations are when a valid id and name are combined.
	ForceZigzag    bool
	ZigzagIndexes  []UnrestrictedName
	ZigzagIndexIDs []IndexID
}

IndexFlags represents "@<index_name|index_id>" or "@{param[,param]}" where param is one of:

  • FORCE_INDEX=<index_name|index_id>
  • ASC / DESC
  • NO_INDEX_JOIN
  • NO_ZIGZAG_JOIN
  • NO_FULL_SCAN
  • IGNORE_FOREIGN_KEYS
  • FORCE_ZIGZAG
  • FORCE_ZIGZAG=<index_name|index_id>*

It is used optionally after a table name in SELECT statements.

func (*IndexFlags) Check 

func (ih *IndexFlags) Check() error

Check verifies if the flags are valid:

  • ascending/descending is not specified without an index;
  • no_index_join isn't specified with an index.

func (*IndexFlags) CombineWith 

func (ih *IndexFlags) CombineWith(other *IndexFlags) error

CombineWith combines two IndexFlags structures, returning an error if they conflict with one another.

func (*IndexFlags) ForceIndex 

func (ih *IndexFlags) ForceIndex() bool

ForceIndex returns true if a forced index was specified, either using a name or an IndexID.

func (*IndexFlags) Format 

func (ih *IndexFlags) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type IndexID 

type IndexID = catid.IndexID

IndexID is a custom type for IndexDescriptor IDs.

type IndexTableDef 

type IndexTableDef struct {
	Name             Name
	Columns          IndexElemList
	Sharded          *ShardedIndexDef
	Storing          NameList
	Inverted         bool
	PartitionByIndex *PartitionByIndex
	StorageParams    StorageParams
	Predicate        Expr
}

IndexTableDef represents an index definition within a CREATE TABLE statement.

func (*IndexTableDef) Format 

func (node *IndexTableDef) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type IndexUsageStatsController 

type IndexUsageStatsController interface {
	ResetIndexUsageStats(ctx context.Context) error
}

IndexUsageStatsController is an interface embedded in EvalCtx which can be used by the builtins to reset index usage stats in the cluster. This interface is introduced to avoid circular dependency.

type IndexedRow 

type IndexedRow interface {
	GetIdx() int                                    // returns index of the row
	GetDatum(idx int) (Datum, error)                // returns a datum at the given index
	GetDatums(startIdx, endIdx int) (Datums, error) // returns datums at indices [startIdx, endIdx)
}

IndexedRow is a row with a corresponding index.

type IndexedRows 

type IndexedRows interface {
	Len() int                                                // returns number of rows
	GetRow(ctx context.Context, idx int) (IndexedRow, error) // returns a row at the given index or an error
}

IndexedRows are rows with the corresponding indices.

type IndexedVar 

type IndexedVar struct {
	Idx  int
	Used bool
	// contains filtered or unexported fields
}

IndexedVar is a VariableExpr that can be used as a leaf in expressions; it represents a dynamic value. It defers calls to TypeCheck, Eval, String to an IndexedVarContainer.

func NewOrdinalReference 

func NewOrdinalReference(r int) *IndexedVar

NewOrdinalReference is a helper routine to create a standalone IndexedVar with the given index value. This needs to undergo BindIfUnbound() below before it can be fully used.

func NewTypedOrdinalReference 

func NewTypedOrdinalReference(r int, typ *types.T) *IndexedVar

NewTypedOrdinalReference returns a new IndexedVar with the given index value that is verified to be well-typed.

func (*IndexedVar) Eval 

func (v *IndexedVar) Eval(ctx *EvalContext) (Datum, error)

Eval is part of the TypedExpr interface.

func (*IndexedVar) Format 

func (v *IndexedVar) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*IndexedVar) ResolvedType 

func (v *IndexedVar) ResolvedType() *types.T

ResolvedType is part of the TypedExpr interface.

func (*IndexedVar) String 

func (node *IndexedVar) String() string

func (*IndexedVar) TypeCheck 

func (v *IndexedVar) TypeCheck(
	_ context.Context, semaCtx *SemaContext, desired *types.T,
) (TypedExpr, error)

TypeCheck is part of the Expr interface.

func (*IndexedVar) Variable 

func (*IndexedVar) Variable()

Variable is a dummy function part of the VariableExpr interface.

func (*IndexedVar) Walk 

func (v *IndexedVar) Walk(_ Visitor) Expr

Walk is part of the Expr interface.

type IndexedVarContainer 

type IndexedVarContainer interface {
	IndexedVarEval(idx int, ctx *EvalContext) (Datum, error)
	IndexedVarResolvedType(idx int) *types.T
	// IndexedVarNodeFormatter returns a NodeFormatter; if an object that
	// wishes to implement this interface has lost the textual name that an
	// IndexedVar originates from, this function can return nil (and the
	// ordinal syntax "@1, @2, .." will be used).
	IndexedVarNodeFormatter(idx int) NodeFormatter
}

IndexedVarContainer provides the implementation of TypeCheck, Eval, and String for IndexedVars.

type IndexedVarHelper 

type IndexedVarHelper struct {
	// contains filtered or unexported fields
}

IndexedVarHelper wraps an IndexedVarContainer (an interface) and creates IndexedVars bound to that container.

It also keeps track of which indexes from the container are used by expressions.

func MakeIndexedVarHelper 

func MakeIndexedVarHelper(container IndexedVarContainer, numVars int) IndexedVarHelper

MakeIndexedVarHelper initializes an IndexedVarHelper structure.

func MakeTypesOnlyIndexedVarHelper 

func MakeTypesOnlyIndexedVarHelper(types []*types.T) IndexedVarHelper

MakeTypesOnlyIndexedVarHelper creates an IndexedVarHelper which provides the given types for indexed vars. It does not support evaluation, unless Rebind is used with another container which supports evaluation.

func (*IndexedVarHelper) AppendSlot 

func (h *IndexedVarHelper) AppendSlot() int

AppendSlot expands the capacity of this IndexedVarHelper by one and returns the index of the new slot.

func (*IndexedVarHelper) BindIfUnbound 

func (h *IndexedVarHelper) BindIfUnbound(ivar *IndexedVar) (*IndexedVar, error)

BindIfUnbound ensures the IndexedVar is attached to this helper's container. - for freshly created IndexedVars (with a nil container) this will bind in-place. - for already bound IndexedVar, bound to this container, this will return the same ivar unchanged. - for ordinal references (with an explicit unboundContainer) this will return a new var. - for already bound IndexedVars, bound to another container, this will error out.

func (*IndexedVarHelper) Container 

func (h *IndexedVarHelper) Container() IndexedVarContainer

Container returns the container associated with the helper.

func (*IndexedVarHelper) GetIndexedVars 

func (h *IndexedVarHelper) GetIndexedVars() []IndexedVar

GetIndexedVars returns the indexed var array of this helper. IndexedVars to the caller; unused vars are guaranteed to have a false Used field.

func (*IndexedVarHelper) IndexedVar 

func (h *IndexedVarHelper) IndexedVar(idx int) *IndexedVar

IndexedVar returns an IndexedVar for the given index. The index must be valid.

func (*IndexedVarHelper) IndexedVarUsed 

func (h *IndexedVarHelper) IndexedVarUsed(idx int) bool

IndexedVarUsed returns true if IndexedVar() was called for the given index. The index must be valid.

func (*IndexedVarHelper) IndexedVarWithType 

func (h *IndexedVarHelper) IndexedVarWithType(idx int, typ *types.T) *IndexedVar

IndexedVarWithType returns an IndexedVar for the given index, with the given type. The index must be valid. This should be used in the case where an indexed var is being added before its container has a corresponding entry for it.

func (*IndexedVarHelper) Rebind 

func (h *IndexedVarHelper) Rebind(expr TypedExpr) TypedExpr

Rebind collects all the IndexedVars in the given expression and re-binds them to this helper.

func (*IndexedVarHelper) VisitPost 

func (*IndexedVarHelper) VisitPost(expr Expr) Expr

VisitPost implements the Visitor interface.

func (*IndexedVarHelper) VisitPre 

func (h *IndexedVarHelper) VisitPre(expr Expr) (recurse bool, newExpr Expr)

VisitPre implements the Visitor interface.

type IndirectionExpr 

type IndirectionExpr struct {
	Expr        Expr
	Indirection ArraySubscripts
	// contains filtered or unexported fields
}

IndirectionExpr represents a subscript expression.

func NewTypedIndirectionExpr 

func NewTypedIndirectionExpr(expr, index TypedExpr, typ *types.T) *IndirectionExpr

NewTypedIndirectionExpr returns a new IndirectionExpr that is verified to be well-typed.

func (*IndirectionExpr) Eval 

func (expr *IndirectionExpr) Eval(ctx *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*IndirectionExpr) Format 

func (node *IndirectionExpr) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (IndirectionExpr) ResolvedType 

func (ta IndirectionExpr) ResolvedType() *types.T

func (*IndirectionExpr) String 

func (node *IndirectionExpr) String() string

func (*IndirectionExpr) TypeCheck 

func (expr *IndirectionExpr) TypeCheck(
	ctx context.Context, semaCtx *SemaContext, desired *types.T,
) (TypedExpr, error)

TypeCheck implements the Expr interface.

func (*IndirectionExpr) Walk 

func (expr *IndirectionExpr) Walk(v Visitor) Expr

Walk implements the Expr interface.

type Insert 

type Insert struct {
	With       *With
	Table      TableExpr
	Columns    NameList
	Rows       *Select
	OnConflict *OnConflict
	Returning  ReturningClause
}

Insert represents an INSERT statement.

func (*Insert) DefaultValues 

func (node *Insert) DefaultValues() bool

DefaultValues returns true iff only default values are being inserted.

func (*Insert) Format 

func (node *Insert) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*Insert) StatementReturnType 

func (n *Insert) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*Insert) StatementTag 

func (*Insert) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*Insert) StatementType 

func (*Insert) StatementType() StatementType

StatementType implements the Statement interface.

func (*Insert) String 

func (n *Insert) String() string

type InternalRows 

type InternalRows interface {
	// Next advances the iterator by one row, returning false if there are no
	// more rows in this iterator or if an error is encountered (the latter is
	// then returned).
	//
	// The iterator is automatically closed when false is returned, consequent
	// calls to Next will return the same values as when the iterator was
	// closed.
	Next(context.Context) (bool, error)

	// Cur returns the row at the current position of the iterator. The row is
	// safe to hold onto (meaning that calling Next() or Close() will not
	// invalidate it).
	Cur() Datums

	// Close closes this iterator, releasing any resources it held open. Close
	// is idempotent and *must* be called once the caller is done with the
	// iterator.
	Close() error
}

InternalRows is an iterator interface that's exposed by the internal executor. It provides access to the rows from a query. InternalRows is a copy of the one in sql/internal.go excluding the Types function - we don't need the Types function for use cases where QueryIteratorEx is used from the InternalExecutor on the EvalPlanner. Furthermore, we cannot include the Types function due to a cyclic dependency on colinfo.ResultColumns - we cannot import colinfo in tree.

type IsNotNullExpr 

type IsNotNullExpr struct {
	Expr Expr
	// contains filtered or unexported fields
}

IsNotNullExpr represents an IS NOT NULL expression. This is equivalent to IS DISTINCT FROM NULL, except when the input is a tuple.

func NewTypedIsNotNullExpr 

func NewTypedIsNotNullExpr(expr TypedExpr) *IsNotNullExpr

NewTypedIsNotNullExpr returns a new IsNotNullExpr that is verified to be well-typed.

func (*IsNotNullExpr) Eval 

func (expr *IsNotNullExpr) Eval(ctx *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*IsNotNullExpr) Format 

func (node *IsNotNullExpr) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (IsNotNullExpr) ResolvedType 

func (ta IsNotNullExpr) ResolvedType() *types.T

func (*IsNotNullExpr) String 

func (node *IsNotNullExpr) String() string

func (*IsNotNullExpr) TypeCheck 

func (expr *IsNotNullExpr) TypeCheck(
	ctx context.Context, semaCtx *SemaContext, desired *types.T,
) (TypedExpr, error)

TypeCheck implements the Expr interface.

func (*IsNotNullExpr) TypedInnerExpr 

func (node *IsNotNullExpr) TypedInnerExpr() TypedExpr

TypedInnerExpr returns the IsNotNullExpr's inner expression as a TypedExpr.

func (*IsNotNullExpr) Walk 

func (expr *IsNotNullExpr) Walk(v Visitor) Expr

Walk implements the Expr interface.

type IsNullExpr 

type IsNullExpr struct {
	Expr Expr
	// contains filtered or unexported fields
}

IsNullExpr represents an IS NULL expression. This is equivalent to IS NOT DISTINCT FROM NULL, except when the input is a tuple.

func NewTypedIsNullExpr 

func NewTypedIsNullExpr(expr TypedExpr) *IsNullExpr

NewTypedIsNullExpr returns a new IsNullExpr that is verified to be well-typed.

func (*IsNullExpr) Eval 

func (expr *IsNullExpr) Eval(ctx *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*IsNullExpr) Format 

func (node *IsNullExpr) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (IsNullExpr) ResolvedType 

func (ta IsNullExpr) ResolvedType() *types.T

func (*IsNullExpr) String 

func (node *IsNullExpr) String() string

func (*IsNullExpr) TypeCheck 

func (expr *IsNullExpr) TypeCheck(
	ctx context.Context, semaCtx *SemaContext, desired *types.T,
) (TypedExpr, error)

TypeCheck implements the Expr interface.

func (*IsNullExpr) TypedInnerExpr 

func (node *IsNullExpr) TypedInnerExpr() TypedExpr

TypedInnerExpr returns the IsNullExpr's inner expression as a TypedExpr.

func (*IsNullExpr) Walk 

func (expr *IsNullExpr) Walk(v Visitor) Expr

Walk implements the Expr interface.

type IsOfTypeExpr 

type IsOfTypeExpr struct {
	Not   bool
	Expr  Expr
	Types []ResolvableTypeReference
	// contains filtered or unexported fields
}

IsOfTypeExpr represents an IS {,NOT} OF (type_list) expression.

func (*IsOfTypeExpr) Eval 

func (expr *IsOfTypeExpr) Eval(ctx *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*IsOfTypeExpr) Format 

func (node *IsOfTypeExpr) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (IsOfTypeExpr) ResolvedType 

func (ta IsOfTypeExpr) ResolvedType() *types.T

func (*IsOfTypeExpr) ResolvedTypes 

func (node *IsOfTypeExpr) ResolvedTypes() []*types.T

ResolvedTypes returns a slice of resolved types corresponding to the Types slice of unresolved types. It may only be accessed after typechecking.

func (*IsOfTypeExpr) String 

func (node *IsOfTypeExpr) String() string

func (*IsOfTypeExpr) TypeCheck 

func (expr *IsOfTypeExpr) TypeCheck(
	ctx context.Context, semaCtx *SemaContext, desired *types.T,
) (TypedExpr, error)

TypeCheck implements the Expr interface.

func (*IsOfTypeExpr) Walk 

func (expr *IsOfTypeExpr) Walk(v Visitor) Expr

Walk implements the Expr interface.

type IsolationLevel 

type IsolationLevel int

IsolationLevel holds the isolation level for a transaction. 

const (
	UnspecifiedIsolation IsolationLevel = iota
	SerializableIsolation
)

IsolationLevel values

func (IsolationLevel) String 

func (i IsolationLevel) String() string

type JobCommand 

type JobCommand int

JobCommand determines which type of action to effect on the selected job(s). 

const (
	PauseJob JobCommand = iota
	CancelJob
	ResumeJob
)

JobCommand values

type JoinCond 

type JoinCond interface {
	NodeFormatter
	// contains filtered or unexported methods
}

JoinCond represents a join condition.

type JoinTableExpr 

type JoinTableExpr struct {
	JoinType string
	Left     TableExpr
	Right    TableExpr
	Cond     JoinCond
	Hint     string
}

JoinTableExpr represents a TableExpr that's a JOIN operation.

func (*JoinTableExpr) Format 

func (node *JoinTableExpr) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*JoinTableExpr) String 

func (node *JoinTableExpr) String() string

func (*JoinTableExpr) WalkTableExpr 

func (expr *JoinTableExpr) WalkTableExpr(v Visitor) TableExpr

WalkTableExpr implements the TableExpr interface.

type JoinTokenCreator 

type JoinTokenCreator interface {
	// CreateJoinToken creates a new ephemeral join token and persists it
	// across the cluster. This join token can then be used to have new nodes
	// join the cluster and exchange certificates securely.
	CreateJoinToken(ctx context.Context) (string, error)
}

JoinTokenCreator is capable of creating and persisting join tokens, allowing SQL builtin functions to create join tokens. The methods will return errors when run on multi-tenant clusters or with this functionality unavailable.

type KVOption 

type KVOption struct {
	Key   Name
	Value Expr
}

KVOption is a key-value option.

type KVOptions 

type KVOptions []KVOption

KVOptions is a list of KVOptions.

func (*KVOptions) Format 

func (o *KVOptions) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (KVOptions) ToRoleOptions 

func (o KVOptions) ToRoleOptions(
	typeAsStringOrNull func(e Expr, op string) (func() (bool, string, error), error), op string,
) (roleoption.List, error)

ToRoleOptions converts KVOptions to a roleoption.List using typeAsString to convert exprs to strings.

type LikeTableDef 

type LikeTableDef struct {
	Name    TableName
	Options []LikeTableOption
}

LikeTableDef represents a LIKE table declaration on a CREATE TABLE statement.

func (*LikeTableDef) Format 

func (def *LikeTableDef) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type LikeTableOpt 

type LikeTableOpt int

LikeTableOpt represents one of the types of things that can be included or excluded in a LIKE table declaration. It's a bitmap, where each of the Opt values is a single enabled bit in the map. 

const (
	LikeTableOptConstraints LikeTableOpt = 1 << iota
	LikeTableOptDefaults
	LikeTableOptGenerated
	LikeTableOptIndexes
)

The values for LikeTableOpt.

func (LikeTableOpt) Has 

func (o LikeTableOpt) Has(other LikeTableOpt) bool

Has returns true if the receiver has the other options bits set.

func (LikeTableOpt) String 

func (o LikeTableOpt) String() string

type LikeTableOption 

type LikeTableOption struct {
	Excluded bool
	Opt      LikeTableOpt
}

LikeTableOption represents an individual INCLUDING / EXCLUDING statement on a LIKE table declaration.

func (LikeTableOption) Format 

func (l LikeTableOption) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type Limit 

type Limit struct {
	Offset, Count Expr
	LimitAll      bool
}

Limit represents a LIMIT clause.

func (*Limit) Format 

func (node *Limit) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type LineWidthMode 

type LineWidthMode int

LineWidthMode directs which mode of line width to use.

type ListPartition 

type ListPartition struct {
	Name         UnrestrictedName
	Exprs        Exprs
	Subpartition *PartitionBy
}

ListPartition represents a PARTITION definition within a PARTITION BY LIST.

func (*ListPartition) Format 

func (node *ListPartition) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type Locality 

type Locality struct {
	LocalityLevel LocalityLevel
	// TableRegion is set if is LocalityLevelTable and a non-primary region is set.
	TableRegion Name
	// RegionalByRowColumn is set if col_name on REGIONAL BY ROW ON <col_name> is
	// set.
	RegionalByRowColumn Name
}

Locality defines the locality for a given table.

func (*Locality) Format 

func (node *Locality) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*Locality) TelemetryName 

func (node *Locality) TelemetryName() string

TelemetryName returns the telemetry name for a given locality level.

type LocalityLevel 

type LocalityLevel int

LocalityLevel is a defined locality. 

const (
	// LocalityLevelGlobal distributes a table across
	// a global cluster.
	LocalityLevelGlobal LocalityLevel = iota
	// LocalityLevelTable implies a table is homed
	// in a fixed region.
	LocalityLevelTable
	// LocalityLevelRow implies a table's rows are
	// homed depending on values within the row.
	LocalityLevelRow
)

type LockingClause 

type LockingClause []*LockingItem

LockingClause represents a locking clause, like FOR UPDATE.

func (*LockingClause) Format 

func (node *LockingClause) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type LockingItem 

type LockingItem struct {
	Strength   LockingStrength
	Targets    TableNames
	WaitPolicy LockingWaitPolicy
}

LockingItem represents a single locking item in a locking clause.

NOTE: if this struct changes, HashLockingItem and IsLockingItemEqual in opt/memo/interner.go will need to be updated accordingly.

func (*LockingItem) Format 

func (f *LockingItem) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type LockingStrength 

type LockingStrength byte

LockingStrength represents the possible row-level lock modes for a SELECT statement. 

const (
	// ForNone represents the default - no for statement at all.
	// LockingItem AST nodes are never created with this strength.
	ForNone LockingStrength = iota
	// ForKeyShare represents FOR KEY SHARE.
	ForKeyShare
	// ForShare represents FOR SHARE.
	ForShare
	// ForNoKeyUpdate represents FOR NO KEY UPDATE.
	ForNoKeyUpdate
	// ForUpdate represents FOR UPDATE.
	ForUpdate
)

The ordering of the variants is important, because the highest numerical value takes precedence when row-level locking is specified multiple ways.

func (LockingStrength) Format 

func (s LockingStrength) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (LockingStrength) Max 

func (s LockingStrength) Max(s2 LockingStrength) LockingStrength

Max returns the maximum of the two locking strengths.

func (LockingStrength) String 

func (s LockingStrength) String() string

type LockingWaitPolicy 

type LockingWaitPolicy byte

LockingWaitPolicy represents the possible policies for handling conflicting locks held by other active transactions when attempting to lock rows due to FOR UPDATE/SHARE clauses (i.e. it represents the NOWAIT and SKIP LOCKED options). 

const (
	// LockWaitBlock represents the default - wait for the lock to become
	// available.
	LockWaitBlock LockingWaitPolicy = iota
	// LockWaitSkip represents SKIP LOCKED - skip rows that can't be locked.
	LockWaitSkip
	// LockWaitError represents NOWAIT - raise an error if a row cannot be
	// locked.
	LockWaitError
)

The ordering of the variants is important, because the highest numerical value takes precedence when row-level locking is specified multiple ways.

func (LockingWaitPolicy) Format 

func (p LockingWaitPolicy) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (LockingWaitPolicy) Max 

func (p LockingWaitPolicy) Max(p2 LockingWaitPolicy) LockingWaitPolicy

Max returns the maximum of the two locking wait policies.

func (LockingWaitPolicy) String 

func (p LockingWaitPolicy) String() string

type MaterializeClause 

type MaterializeClause struct {
	// Set controls whether to use the Materialize bool instead of the default.
	Set bool

	// Materialize overrides the default materialization behavior.
	Materialize bool
}

MaterializeClause represents a materialize clause inside of a WITH clause.

type MoveCursor 

type MoveCursor struct {
	CursorStmt
}

MoveCursor represents a MOVE statement.

func (MoveCursor) Format 

func (m MoveCursor) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*MoveCursor) StatementReturnType 

func (n *MoveCursor) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*MoveCursor) StatementTag 

func (*MoveCursor) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*MoveCursor) StatementType 

func (*MoveCursor) StatementType() StatementType

StatementType implements the Statement interface.

func (*MoveCursor) String 

func (n *MoveCursor) String() string

type MultipleResultsError 

type MultipleResultsError struct {
	SQL string // the query that produced this error
}

MultipleResultsError is returned by QueryRow when more than one result is encountered.

func (*MultipleResultsError) Error 

func (e *MultipleResultsError) Error() string

type Name 

type Name string

A Name is an SQL identifier.

In general, a Name is the result of parsing a name nonterminal, which is used in the grammar where reserved keywords cannot be distinguished from identifiers. A Name that matches a reserved keyword must thus be quoted when formatted. (Names also need quoting for a variety of other reasons; see isBareIdentifier.)

For historical reasons, some Names are instead the result of parsing `unrestricted_name` nonterminals. See UnrestrictedName for details.

func (*Name) Format 

func (n *Name) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (Name) Normalize 

func (n Name) Normalize() string

Normalize normalizes to lowercase and Unicode Normalization Form C (NFC).

func (*Name) String 

func (node *Name) String() string

type NameList 

type NameList []Name

A NameList is a list of identifiers.

func (*NameList) Format 

func (l *NameList) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*NameList) String 

func (list *NameList) String() string

func (NameList) ToStrings 

func (l NameList) ToStrings() []string

ToStrings converts the name list to an array of regular strings.

type NameParts 

type NameParts = [4]string

NameParts is the array of strings that composes the path in an UnresolvedName.

type NamedColumnQualification 

type NamedColumnQualification struct {
	Name          Name
	Qualification ColumnQualification
}

NamedColumnQualification wraps a NamedColumnQualification with a name.

type NaturalJoinCond 

type NaturalJoinCond struct{}

NaturalJoinCond represents a NATURAL join condition

func (NaturalJoinCond) Format 

func (NaturalJoinCond) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type NewParseTimeContextOption 

type NewParseTimeContextOption func(ret *simpleParseTimeContext)

NewParseTimeContextOption is an option to NewParseTimeContext.

func NewParseTimeContextOptionDateStyle 

func NewParseTimeContextOptionDateStyle(dateStyle pgdate.DateStyle) NewParseTimeContextOption

NewParseTimeContextOptionDateStyle sets the DateStyle for the context.

type NoReturningClause 

type NoReturningClause struct{}

NoReturningClause represents the absence of a RETURNING clause.

func (*NoReturningClause) Format 

func (*NoReturningClause) Format(_ *FmtCtx)

Format implements the NodeFormatter interface.

type NodeFormatter 

type NodeFormatter interface {
	// Format performs pretty-printing towards a bytes buffer. The flags member
	// of ctx influences the results. Most callers should use FormatNode instead.
	Format(ctx *FmtCtx)
}

NodeFormatter is implemented by nodes that can be pretty-printed.

type NormalizeVisitor 

type NormalizeVisitor struct {
	// contains filtered or unexported fields
}

NormalizeVisitor supports the execution of NormalizeExpr.

func MakeNormalizeVisitor 

func MakeNormalizeVisitor(ctx *EvalContext) NormalizeVisitor

MakeNormalizeVisitor creates a NormalizeVisitor instance.

func (*NormalizeVisitor) Err 

func (v *NormalizeVisitor) Err() error

Err retrieves the error field in the NormalizeVisitor.

func (*NormalizeVisitor) VisitPost 

func (v *NormalizeVisitor) VisitPost(expr Expr) Expr

VisitPost implements the Visitor interface.

func (*NormalizeVisitor) VisitPre 

func (v *NormalizeVisitor) VisitPre(expr Expr) (recurse bool, newExpr Expr)

VisitPre implements the Visitor interface.

type NotExpr 

type NotExpr struct {
	Expr Expr
	// contains filtered or unexported fields
}

NotExpr represents a NOT expression.

func NewTypedNotExpr 

func NewTypedNotExpr(expr TypedExpr) *NotExpr

NewTypedNotExpr returns a new NotExpr that is verified to be well-typed.

func (*NotExpr) Eval 

func (expr *NotExpr) Eval(ctx *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*NotExpr) Format 

func (node *NotExpr) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (NotExpr) ResolvedType 

func (ta NotExpr) ResolvedType() *types.T

func (*NotExpr) String 

func (node *NotExpr) String() string

func (*NotExpr) TypeCheck 

func (expr *NotExpr) TypeCheck(
	ctx context.Context, semaCtx *SemaContext, desired *types.T,
) (TypedExpr, error)

TypeCheck implements the Expr interface.

func (*NotExpr) TypedInnerExpr 

func (node *NotExpr) TypedInnerExpr() TypedExpr

TypedInnerExpr returns the NotExpr's inner expression as a TypedExpr.

func (*NotExpr) Walk 

func (expr *NotExpr) Walk(v Visitor) Expr

Walk implements the Expr interface.

type NotNullConstraint 

type NotNullConstraint struct{}

NotNullConstraint represents NOT NULL on a column.

type NullConstraint 

type NullConstraint struct{}

NullConstraint represents NULL on a column.

type NullIfExpr 

type NullIfExpr struct {
	Expr1 Expr
	Expr2 Expr
	// contains filtered or unexported fields
}

NullIfExpr represents a NULLIF expression.

func (*NullIfExpr) Eval 

func (expr *NullIfExpr) Eval(ctx *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*NullIfExpr) Format 

func (node *NullIfExpr) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (NullIfExpr) ResolvedType 

func (ta NullIfExpr) ResolvedType() *types.T

func (*NullIfExpr) String 

func (node *NullIfExpr) String() string

func (*NullIfExpr) TypeCheck 

func (expr *NullIfExpr) TypeCheck(
	ctx context.Context, semaCtx *SemaContext, desired *types.T,
) (TypedExpr, error)

TypeCheck implements the Expr interface.

func (*NullIfExpr) Walk 

func (expr *NullIfExpr) Walk(v Visitor) Expr

Walk implements the Expr interface.

type Nullability 

type Nullability int

Nullability represents either NULL, NOT NULL or an unspecified value (silent NULL). 

const (
	NotNull Nullability = iota
	Null
	SilentNull
)

The values for NullType.

type NullsOrder 

type NullsOrder int8

NullsOrder for specifying ordering of NULLs. 

const (
	DefaultNullsOrder NullsOrder = iota
	NullsFirst
	NullsLast
)

Null order values.

func (NullsOrder) String 

func (n NullsOrder) String() string

type NumVal 

type NumVal struct {
	// contains filtered or unexported fields
}

NumVal represents a constant numeric value.

func NewNumVal 

func NewNumVal(value constant.Value, origString string, negative bool) *NumVal

NewNumVal constructs a new NumVal instance. This is used during parsing and in tests.

func (*NumVal) AsConstantInt 

func (expr *NumVal) AsConstantInt() (constant.Value, bool)

AsConstantInt returns the value as an constant.Int if possible, along with a flag indicating whether the conversion was possible. The result contains the proper sign as per expr.negative.

func (*NumVal) AsConstantValue 

func (expr *NumVal) AsConstantValue() constant.Value

AsConstantValue returns the value as a constant numerical value, with the proper sign as given by expr.negative.

func (*NumVal) AsInt32 

func (expr *NumVal) AsInt32() (int32, error)

AsInt32 returns the value as 32-bit integer if possible, or returns an error if not possible. The method will set expr.resInt to the value of this int32 if it is successful, avoiding the need to call the method again.

func (*NumVal) AsInt64 

func (expr *NumVal) AsInt64() (int64, error)

AsInt64 returns the value as a 64-bit integer if possible, or returns an error if not possible. The method will set expr.resInt to the value of this int64 if it is successful, avoiding the need to call the method again.

func (*NumVal) AvailableTypes 

func (expr *NumVal) AvailableTypes() []*types.T

AvailableTypes implements the Constant interface.

func (*NumVal) DesirableTypes 

func (expr *NumVal) DesirableTypes() []*types.T

DesirableTypes implements the Constant interface.

func (*NumVal) ExactString 

func (expr *NumVal) ExactString() string

ExactString implements the constant.Value interface.

func (*NumVal) Format 

func (expr *NumVal) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*NumVal) Kind 

func (expr *NumVal) Kind() constant.Kind

Kind implements the constant.Value interface.

func (*NumVal) Negate 

func (expr *NumVal) Negate()

Negate sets the negative field to the opposite of its current value. The parser calls this to simplify unary negation expressions.

func (*NumVal) OrigString 

func (expr *NumVal) OrigString() string

OrigString returns the origString field.

func (*NumVal) ResolveAsType 

func (expr *NumVal) ResolveAsType(
	ctx context.Context, semaCtx *SemaContext, typ *types.T,
) (TypedExpr, error)

ResolveAsType implements the Constant interface.

func (*NumVal) SetNegative 

func (expr *NumVal) SetNegative()

SetNegative sets the negative field to true. The parser calls this when it identifies a negative constant.

func (*NumVal) ShouldBeInt64 

func (expr *NumVal) ShouldBeInt64() bool

ShouldBeInt64 checks if the value naturally is an int64: 

1   = yes
1.0 = no
1.1 = no
123...overflow...456 = no

func (*NumVal) String 

func (node *NumVal) String() string

func (*NumVal) TypeCheck 

func (expr *NumVal) TypeCheck(
	ctx context.Context, semaCtx *SemaContext, desired *types.T,
) (TypedExpr, error)

TypeCheck implements the Expr interface.

func (*NumVal) Walk 

func (expr *NumVal) Walk(_ Visitor) Expr

Walk implements the Expr interface.

type OIDTypeReference 

type OIDTypeReference struct {
	OID oid.Oid
}

OIDTypeReference is a reference to a type directly by its stable ID.

func (*OIDTypeReference) SQLString 

func (node *OIDTypeReference) SQLString() string

SQLString implements the ResolvableTypeReference interface.

type ObjectLookupFlags 

type ObjectLookupFlags struct {
	CommonLookupFlags
	AllowWithoutPrimaryKey bool
	// Control what type of object is being requested.
	DesiredObjectKind DesiredObjectKind
	// Control what kind of table object is being requested. This field is
	// only respected when DesiredObjectKind is TableObject.
	DesiredTableDescKind RequiredTableKind
}

ObjectLookupFlags is the flag struct suitable for GetObjectDesc().

func ObjectLookupFlagsWithRequired 

func ObjectLookupFlagsWithRequired() ObjectLookupFlags

ObjectLookupFlagsWithRequired returns a default ObjectLookupFlags object with just the Required flag true. This is a common configuration of the flags.

func ObjectLookupFlagsWithRequiredTableKind 

func ObjectLookupFlagsWithRequiredTableKind(kind RequiredTableKind) ObjectLookupFlags

ObjectLookupFlagsWithRequiredTableKind returns an ObjectLookupFlags with Required set to true, and the DesiredTableDescKind set to the input kind.

type ObjectName 

type ObjectName interface {
	NodeFormatter
	Object() string
	Schema() string
	Catalog() string
	FQString() string
	// contains filtered or unexported methods
}

ObjectName is a common interface for qualified object names.

func NewQualifiedObjectName 

func NewQualifiedObjectName(catalog, schema, object string, kind DesiredObjectKind) ObjectName

NewQualifiedObjectName returns an ObjectName of the corresponding kind. It is used mainly for constructing appropriate error messages depending on what kind of object was requested.

type ObjectNamePrefix 

type ObjectNamePrefix struct {
	CatalogName Name
	SchemaName  Name

	// ExplicitCatalog is true iff the catalog was explicitly specified
	// or it needs to be rendered during pretty-printing.
	ExplicitCatalog bool
	// ExplicitSchema is true iff the schema was explicitly specified
	// or it needs to be rendered during pretty-printing.
	ExplicitSchema bool
}

ObjectNamePrefix corresponds to the path prefix of an object name.

func (*ObjectNamePrefix) Catalog 

func (tp *ObjectNamePrefix) Catalog() string

Catalog retrieves the unqualified catalog name.

func (*ObjectNamePrefix) Format 

func (tp *ObjectNamePrefix) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ObjectNamePrefix) Schema 

func (tp *ObjectNamePrefix) Schema() string

Schema retrieves the unqualified schema name.

func (*ObjectNamePrefix) String 

func (tp *ObjectNamePrefix) String() string

type ObjectNamePrefixList 

type ObjectNamePrefixList []ObjectNamePrefix

ObjectNamePrefixList is a list of ObjectNamePrefix

func (ObjectNamePrefixList) Format 

func (tp ObjectNamePrefixList) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type ObserverStatement 

type ObserverStatement interface {
	// contains filtered or unexported methods
}

ObserverStatement is a marker interface for statements which are allowed to run regardless of the current transaction state: statements other than rollback are generally rejected if the session is in a failed transaction state, but it's convenient to allow some statements (e.g. "show syntax; set tracing"). Such statements are not expected to modify the database, the transaction or session state (other than special cases such as enabling/disabling tracing).

These statements short-circuit the regular execution - they don't get planned (there are no corresponding planNodes). The connExecutor recognizes them and handles them.

type OnConflict 

type OnConflict struct {
	// At most one of Columns and Constraint will be set at once.
	// Columns is the list of arbiter columns, if set, that the user specified
	// in the ON CONFLICT (columns) list.
	Columns NameList
	// Constraint is the name of a table constraint that the user specified to
	// get the list of arbiter columns from, in the ON CONFLICT ON CONSTRAINT
	// form.
	Constraint       Name
	ArbiterPredicate Expr
	Exprs            UpdateExprs
	Where            *Where
	DoNothing        bool
}

OnConflict represents an `ON CONFLICT (columns) WHERE arbiter DO UPDATE SET exprs WHERE where` clause.

The zero value for OnConflict is used to signal the UPSERT short form, which uses the primary key for as the conflict index and the values being inserted for Exprs.

func (*OnConflict) IsUpsertAlias 

func (oc *OnConflict) IsUpsertAlias() bool

IsUpsertAlias returns true if the UPSERT syntactic sugar was used.

type OnJoinCond 

type OnJoinCond struct {
	Expr Expr
}

OnJoinCond represents an ON join condition.

func (*OnJoinCond) Format 

func (node *OnJoinCond) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type Operator 

type Operator interface {
	Operator()
}

Operator is used to identify Operators; used in sql.y.

type OrExpr 

type OrExpr struct {
	Left, Right Expr
	// contains filtered or unexported fields
}

OrExpr represents an OR expression.

func NewTypedOrExpr 

func NewTypedOrExpr(left, right TypedExpr) *OrExpr

NewTypedOrExpr returns a new OrExpr that is verified to be well-typed.

func (*OrExpr) Eval 

func (expr *OrExpr) Eval(ctx *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*OrExpr) Format 

func (node *OrExpr) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (OrExpr) ResolvedType 

func (ta OrExpr) ResolvedType() *types.T

func (*OrExpr) String 

func (node *OrExpr) String() string

func (*OrExpr) TypeCheck 

func (expr *OrExpr) TypeCheck(
	ctx context.Context, semaCtx *SemaContext, desired *types.T,
) (TypedExpr, error)

TypeCheck implements the Expr interface.

func (*OrExpr) TypedLeft 

func (node *OrExpr) TypedLeft() TypedExpr

TypedLeft returns the OrExpr's left expression as a TypedExpr.

func (*OrExpr) TypedRight 

func (node *OrExpr) TypedRight() TypedExpr

TypedRight returns the OrExpr's right expression as a TypedExpr.

func (*OrExpr) Walk 

func (expr *OrExpr) Walk(v Visitor) Expr

Walk implements the Expr interface.

type Order 

type Order struct {
	OrderType  OrderType
	Expr       Expr
	Direction  Direction
	NullsOrder NullsOrder
	// Table/Index replaces Expr when OrderType = OrderByIndex.
	Table TableName
	// If Index is empty, then the order should use the primary key.
	Index UnrestrictedName
}

Order represents an ordering expression.

func (*Order) Equal 

func (node *Order) Equal(other *Order) bool

Equal checks if the node ordering is equivalent to other.

func (*Order) Format 

func (node *Order) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type OrderBy 

type OrderBy []*Order

OrderBy represents an ORDER BY clause.

func (*OrderBy) Format 

func (node *OrderBy) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type OrderType 

type OrderType int

OrderType indicates which type of expression is used in ORDER BY. 

const (
	// OrderByColumn is the regular "by expression/column" ORDER BY specification.
	OrderByColumn OrderType = iota
	// OrderByIndex enables the user to specify a given index' columns implicitly.
	OrderByIndex
)

type Overload 

type Overload struct {
	Types      TypeList
	ReturnType ReturnTyper
	Volatility Volatility

	// PreferredOverload determines overload resolution as follows.
	// When multiple overloads are eligible based on types even after all of of
	// the heuristics to pick one have been used, if one of the overloads is a
	// Overload with the `PreferredOverload` flag set to true it can be selected
	// rather than returning a no-such-method error.
	// This should generally be avoided -- avoiding introducing ambiguous
	// overloads in the first place is a much better solution -- and only done
	// after consultation with @knz @nvanbenschoten.
	PreferredOverload bool

	// Info is a description of the function, which is surfaced on the CockroachDB
	// docs site on the "Functions and Operators" page. Descriptions typically use
	// third-person with the function as an implicit subject (e.g. "Calculates
	// infinity"), but should focus more on ease of understanding so other structures
	// might be more appropriate.
	Info string

	AggregateFunc func([]*types.T, *EvalContext, Datums) AggregateFunc
	WindowFunc    func([]*types.T, *EvalContext) WindowFunc

	// Fn is the normal builtin implementation function. It's for functions that
	// take in Datums and return a Datum.
	Fn func(*EvalContext, Datums) (Datum, error)

	// FnWithExprs is for builtins that need access to their arguments as Exprs
	// and not pre-evaluated Datums, but is otherwise identical to Fn.
	FnWithExprs func(*EvalContext, Exprs) (Datum, error)

	// Generator is for SRFs. SRFs take Datums and return multiple rows of Datums.
	Generator GeneratorFactory

	// GeneratorWithExprs is for SRFs that need access to their arguments as Exprs
	// and not pre-evaluated Datums, but is otherwise identical to Generator.
	GeneratorWithExprs GeneratorWithExprsFactory

	// SQLFn must be set for overloads of type SQLClass. It should return a SQL
	// statement which will be executed as a common table expression in the query.
	SQLFn func(*EvalContext, Datums) (string, error)

	// SpecializedVecBuiltin is used to let the vectorized engine
	// know when an Overload has a specialized vectorized operator.
	SpecializedVecBuiltin SpecializedVectorizedBuiltin

	// IgnoreVolatilityCheck ignores checking the functions overload's
	// volatility against Postgres's volatility at test time.
	// This should be used with caution.
	IgnoreVolatilityCheck bool

	// Oid is the cached oidHasher.BuiltinOid result for this Overload. It's
	// populated at init-time.
	Oid oid.Oid

	// DistsqlBlocklist is set to true when a function cannot be evaluated in
	// DistSQL. One example is when the type information for function arguments
	// cannot be recovered.
	DistsqlBlocklist bool
}

Overload is one of the overloads of a built-in function. Each FunctionDefinition may contain one or more overloads.

func (Overload) FixedReturnType 

func (b Overload) FixedReturnType() *types.T

FixedReturnType returns a fixed type that the function returns, returning Any if the return type is based on the function's arguments.

func (Overload) InferReturnTypeFromInputArgTypes 

func (b Overload) InferReturnTypeFromInputArgTypes(inputTypes []*types.T) *types.T

InferReturnTypeFromInputArgTypes returns the type that the function returns, inferring the type based on the function's inputTypes if necessary.

func (Overload) IsGenerator 

func (b Overload) IsGenerator() bool

IsGenerator returns true if the function is a set returning function (SRF).

func (Overload) Signature 

func (b Overload) Signature(simplify bool) string

Signature returns a human-readable signature. If simplify is bool, tuple-returning functions with just 1 tuple element unwrap the return type in the signature.

type ParenExpr 

type ParenExpr struct {
	Expr Expr
	// contains filtered or unexported fields
}

ParenExpr represents a parenthesized expression.

func (*ParenExpr) Eval 

func (expr *ParenExpr) Eval(ctx *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*ParenExpr) Format 

func (node *ParenExpr) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (ParenExpr) ResolvedType 

func (ta ParenExpr) ResolvedType() *types.T

func (*ParenExpr) String 

func (node *ParenExpr) String() string

func (*ParenExpr) TypeCheck 

func (expr *ParenExpr) TypeCheck(
	ctx context.Context, semaCtx *SemaContext, desired *types.T,
) (TypedExpr, error)

TypeCheck implements the Expr interface.

func (*ParenExpr) TypedInnerExpr 

func (node *ParenExpr) TypedInnerExpr() TypedExpr

TypedInnerExpr returns the ParenExpr's inner expression as a TypedExpr.

func (*ParenExpr) Walk 

func (expr *ParenExpr) Walk(v Visitor) Expr

Walk implements the Expr interface.

type ParenSelect 

type ParenSelect struct {
	Select *Select
}

ParenSelect represents a parenthesized SELECT/UNION/VALUES statement.

func (*ParenSelect) Format 

func (node *ParenSelect) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ParenSelect) StatementReturnType 

func (*ParenSelect) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ParenSelect) StatementTag 

func (*ParenSelect) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ParenSelect) StatementType 

func (*ParenSelect) StatementType() StatementType

StatementType implements the Statement interface.

func (*ParenSelect) String 

func (n *ParenSelect) String() string

type ParenTableExpr 

type ParenTableExpr struct {
	Expr TableExpr
}

ParenTableExpr represents a parenthesized TableExpr.

func (*ParenTableExpr) Format 

func (node *ParenTableExpr) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ParenTableExpr) String 

func (node *ParenTableExpr) String() string

func (*ParenTableExpr) WalkTableExpr 

func (expr *ParenTableExpr) WalkTableExpr(v Visitor) TableExpr

WalkTableExpr implements the TableExpr interface.

type ParseTimeContext 

type ParseTimeContext interface {
	// GetRelativeParseTime returns the transaction time in the session's
	// timezone (i.e. now()). This is used to calculate relative dates,
	// like "tomorrow", and also provides a default time.Location for
	// parsed times.
	GetRelativeParseTime() time.Time
	// GetIntervalStyle returns the interval style in the session.
	GetIntervalStyle() duration.IntervalStyle
	// GetDateStyle returns the date style in the session.
	GetDateStyle() pgdate.DateStyle
}

ParseTimeContext provides the information necessary for parsing dates, intervals times, and timestamps. A nil value is generally acceptable and will result in reasonable defaults being applied.

func NewParseTimeContext 

func NewParseTimeContext(
	relativeParseTime time.Time, opts ...NewParseTimeContextOption,
) ParseTimeContext

NewParseTimeContext constructs a ParseTimeContext that returns the given values.

type PartitionBy 

type PartitionBy struct {
	Fields NameList
	// Exactly one of List or Range is required to be non-empty.
	List  []ListPartition
	Range []RangePartition
}

PartitionBy represents an PARTITION BY definition within a CREATE/ALTER TABLE/INDEX statement or within a subpartition statement. This is wrapped by top level PartitionByTable/PartitionByIndex structs for table and index definitions respectively.

func (*PartitionBy) Format 

func (node *PartitionBy) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type PartitionByIndex 

type PartitionByIndex struct {
	*PartitionBy
}

PartitionByIndex represents a PARTITION BY definition within a CREATE/ALTER INDEX statement.

func (*PartitionByIndex) ContainsPartitioningClause 

func (node *PartitionByIndex) ContainsPartitioningClause() bool

ContainsPartitioningClause determines if the partition by table contains a partitioning clause, including PARTITION BY NOTHING.

func (*PartitionByIndex) ContainsPartitions 

func (node *PartitionByIndex) ContainsPartitions() bool

ContainsPartitions determines if the partition by table contains a partition clause which is not PARTITION BY NOTHING.

type PartitionByTable 

type PartitionByTable struct {
	// All denotes PARTITION ALL BY.
	All bool

	*PartitionBy
}

PartitionByTable represents a PARTITION [ALL] BY definition within a CREATE/ALTER TABLE statement.

func (*PartitionByTable) ContainsPartitioningClause 

func (node *PartitionByTable) ContainsPartitioningClause() bool

ContainsPartitioningClause determines if the partition by table contains a partitioning clause, including PARTITION BY NOTHING.

func (*PartitionByTable) ContainsPartitions 

func (node *PartitionByTable) ContainsPartitions() bool

ContainsPartitions determines if the partition by table contains a partition clause which is not PARTITION BY NOTHING.

func (*PartitionByTable) Format 

func (node *PartitionByTable) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type PartitionByType 

type PartitionByType string

PartitionByType is an enum of each type of partitioning (LIST/RANGE). 

const (
	// PartitionByList indicates a PARTITION BY LIST clause.
	PartitionByList PartitionByType = "LIST"
	// PartitionByRange indicates a PARTITION BY LIST clause.
	PartitionByRange PartitionByType = "RANGE"
)

type PartitionMaxVal 

type PartitionMaxVal struct{}

PartitionMaxVal represents the MAXVALUE expression.

func (PartitionMaxVal) Format 

func (node PartitionMaxVal) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (PartitionMaxVal) String 

func (node PartitionMaxVal) String() string

func (PartitionMaxVal) TypeCheck 

func (expr PartitionMaxVal) TypeCheck(
	_ context.Context, _ *SemaContext, desired *types.T,
) (TypedExpr, error)

TypeCheck implements the Expr interface.

func (PartitionMaxVal) Walk 

func (expr PartitionMaxVal) Walk(_ Visitor) Expr

Walk implements the Expr interface.

type PartitionMinVal 

type PartitionMinVal struct{}

PartitionMinVal represents the MINVALUE expression.

func (PartitionMinVal) Format 

func (node PartitionMinVal) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (PartitionMinVal) String 

func (node PartitionMinVal) String() string

func (PartitionMinVal) TypeCheck 

func (expr PartitionMinVal) TypeCheck(
	_ context.Context, _ *SemaContext, desired *types.T,
) (TypedExpr, error)

TypeCheck implements the Expr interface.

func (PartitionMinVal) Walk 

func (expr PartitionMinVal) Walk(_ Visitor) Expr

Walk implements the Expr interface.

type PeerGroupChecker 

type PeerGroupChecker interface {
	InSameGroup(i, j int) (bool, error)
}

PeerGroupChecker can check if a pair of row indices within a partition are in the same peer group. It also returns an error if it occurs while checking the peer groups.

type PeerGroupsIndicesHelper 

type PeerGroupsIndicesHelper struct {
	// contains filtered or unexported fields
}

PeerGroupsIndicesHelper computes peer groups using the given PeerGroupChecker. In ROWS and RANGE modes, it processes one peer group at a time and stores information only about single peer group. In GROUPS mode, it's behavior depends on the frame bounds; in the worst case, it stores max(F, O) peer groups at the same time, where F is the maximum number of peer groups within the frame at any point and O is the maximum of two offsets if we have OFFSET_FOLLOWING type of bound (both F and O are upper-bounded by total number of peer groups).

func (*PeerGroupsIndicesHelper) GetFirstPeerIdx 

func (p *PeerGroupsIndicesHelper) GetFirstPeerIdx(peerGroupNum int) int

GetFirstPeerIdx returns index of the first peer within peer group of number peerGroupNum (counting from 0).

func (*PeerGroupsIndicesHelper) GetLastPeerGroupNum 

func (p *PeerGroupsIndicesHelper) GetLastPeerGroupNum() int

GetLastPeerGroupNum returns the number of the last peer group in the queue.

func (*PeerGroupsIndicesHelper) GetRowCount 

func (p *PeerGroupsIndicesHelper) GetRowCount(peerGroupNum int) int

GetRowCount returns the number of rows within peer group of number peerGroupNum (counting from 0).

func (*PeerGroupsIndicesHelper) Init 

func (p *PeerGroupsIndicesHelper) Init(wfr *WindowFrameRun, peerGrouper PeerGroupChecker) error

Init computes all peer groups necessary to perform calculations of a window function over the first row of the partition. It returns any error if it occurs.

func (*PeerGroupsIndicesHelper) Update 

func (p *PeerGroupsIndicesHelper) Update(wfr *WindowFrameRun) error

Update should be called after a window function has been computed over all rows in wfr.CurRowPeerGroupNum peer group. If not all rows have been already processed, it computes the next peer group. It returns any error if it occurs.

type Persistence 

type Persistence int

Persistence defines the persistence strategy for a given table. 

const (
	// PersistencePermanent indicates a permanent table.
	PersistencePermanent Persistence = iota
	// PersistenceTemporary indicates a temporary table.
	PersistenceTemporary
	// PersistenceUnlogged indicates an unlogged table.
	// Note this state is not persisted on disk and is used at parse time only.
	PersistenceUnlogged
)

func (Persistence) IsTemporary 

func (p Persistence) IsTemporary() bool

IsTemporary returns whether the Persistence value is Temporary.

func (Persistence) IsUnlogged 

func (p Persistence) IsUnlogged() bool

IsUnlogged returns whether the Persistence value is Unlogged.

type Placeholder 

type Placeholder struct {
	Idx PlaceholderIdx
	// contains filtered or unexported fields
}

Placeholder represents a named placeholder.

func NewPlaceholder 

func NewPlaceholder(name string) (*Placeholder, error)

NewPlaceholder allocates a Placeholder.

func (*Placeholder) AmbiguousFormat 

func (d *Placeholder) AmbiguousFormat() bool

AmbiguousFormat implements the Datum interface.

func (*Placeholder) Compare 

func (d *Placeholder) Compare(ctx *EvalContext, other Datum) int

Compare implements the Datum interface.

func (*Placeholder) CompareError 

func (d *Placeholder) CompareError(ctx *EvalContext, other Datum) (int, error)

CompareError implements the Datum interface.

func (*Placeholder) Eval 

func (t *Placeholder) Eval(ctx *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*Placeholder) Format 

func (node *Placeholder) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*Placeholder) IsMax 

func (d *Placeholder) IsMax(ctx *EvalContext) bool

IsMax implements the Datum interface.

func (*Placeholder) IsMin 

func (d *Placeholder) IsMin(ctx *EvalContext) bool

IsMin implements the Datum interface.

func (*Placeholder) Max 

func (d *Placeholder) Max(ctx *EvalContext) (Datum, bool)

Max implements the Datum interface.

func (*Placeholder) Min 

func (d *Placeholder) Min(ctx *EvalContext) (Datum, bool)

Min implements the Datum interface.

func (*Placeholder) Next 

func (d *Placeholder) Next(ctx *EvalContext) (Datum, bool)

Next implements the Datum interface.

func (*Placeholder) Prev 

func (d *Placeholder) Prev(ctx *EvalContext) (Datum, bool)

Prev implements the Datum interface.

func (*Placeholder) ResolvedType 

func (node *Placeholder) ResolvedType() *types.T

ResolvedType implements the TypedExpr interface.

func (*Placeholder) Size 

func (d *Placeholder) Size() uintptr

Size implements the Datum interface.

func (*Placeholder) String 

func (node *Placeholder) String() string

func (*Placeholder) TypeCheck 

func (expr *Placeholder) TypeCheck(
	ctx context.Context, semaCtx *SemaContext, desired *types.T,
) (TypedExpr, error)

TypeCheck implements the Expr interface.

func (*Placeholder) Walk 

func (expr *Placeholder) Walk(_ Visitor) Expr

Walk implements the Expr interface.

type PlaceholderIdx 

type PlaceholderIdx uint16

PlaceholderIdx is the 0-based index of a placeholder. Placeholder "$1" has PlaceholderIdx=0.

func (PlaceholderIdx) String 

func (idx PlaceholderIdx) String() string

String returns the index as a placeholder string representation ($1, $2 etc).

type PlaceholderInfo 

type PlaceholderInfo struct {
	PlaceholderTypesInfo

	Values QueryArguments
}

PlaceholderInfo defines the interface to SQL placeholders.

func (*PlaceholderInfo) Assign 

func (p *PlaceholderInfo) Assign(src *PlaceholderInfo, numPlaceholders int) error

Assign resets the PlaceholderInfo to the contents of src. If src is nil, a new structure is initialized.

func (*PlaceholderInfo) Init 

func (p *PlaceholderInfo) Init(numPlaceholders int, typeHints PlaceholderTypes) error

Init initializes a PlaceholderInfo structure appropriate for the given number of placeholders, and with the given (optional) type hints.

func (*PlaceholderInfo) IsUnresolvedPlaceholder 

func (p *PlaceholderInfo) IsUnresolvedPlaceholder(expr Expr) bool

IsUnresolvedPlaceholder returns whether expr is an unresolved placeholder. In other words, it returns whether the provided expression is a placeholder expression or a placeholder expression within nested parentheses, and if so, whether the placeholder's type remains unset in the PlaceholderInfo.

func (*PlaceholderInfo) Value 

func (p *PlaceholderInfo) Value(idx PlaceholderIdx) (TypedExpr, bool)

Value returns the known value of a placeholder. Returns false in the 2nd value if the placeholder does not have a value.

type PlaceholderTypes 

type PlaceholderTypes []*types.T

PlaceholderTypes stores placeholder types (or type hints), one per PlaceholderIdx. The slice is always pre-allocated to the number of placeholders in the statement. Entries that don't yet have a type are nil.

func (PlaceholderTypes) AssertAllSet 

func (pt PlaceholderTypes) AssertAllSet() error

AssertAllSet verifies that all types have been set and returns an error otherwise.

func (PlaceholderTypes) Identical 

func (pt PlaceholderTypes) Identical(other PlaceholderTypes) bool

Identical returns true if two PlaceholderTypes contain the same types.

type PlaceholderTypesInfo 

type PlaceholderTypesInfo struct {
	// TypeHints contains the initially set type hints for each placeholder if
	// present. It is not changed during query type checking.
	TypeHints PlaceholderTypes
	// Types contains the final types set for each placeholder after type
	// checking.
	Types PlaceholderTypes
}

PlaceholderTypesInfo encapsulates typing information for placeholders.

func (*PlaceholderTypesInfo) SetType 

func (p *PlaceholderTypesInfo) SetType(idx PlaceholderIdx, typ *types.T) error

SetType assigns a known type to a placeholder. Reports an error if another type was previously assigned.

func (*PlaceholderTypesInfo) Type 

func (p *PlaceholderTypesInfo) Type(idx PlaceholderIdx) (_ *types.T, ok bool, _ error)

Type returns the known type of a placeholder. If there is no known type yet but there is a type hint, returns the type hint.

func (*PlaceholderTypesInfo) ValueType 

func (p *PlaceholderTypesInfo) ValueType(idx PlaceholderIdx) (_ *types.T, ok bool)

ValueType returns the type of the value that must be supplied for a placeholder. This is the type hint given by the client if there is one, or the placeholder type if there isn't one. This can differ from Type(idx) when a client hint is overridden (see Placeholder.Eval).

type Prepare 

type Prepare struct {
	Name      Name
	Types     []ResolvableTypeReference
	Statement Statement
}

Prepare represents a PREPARE statement.

func (*Prepare) Format 

func (node *Prepare) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*Prepare) StatementReturnType 

func (*Prepare) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*Prepare) StatementTag 

func (*Prepare) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*Prepare) StatementType 

func (*Prepare) StatementType() StatementType

StatementType implements the Statement interface.

func (*Prepare) String 

func (n *Prepare) String() string

type PreparedStatementState 

type PreparedStatementState interface {
	HasActivePortals() bool
	MigratablePreparedStatements() []sessiondatapb.MigratableSession_PreparedStatement
}

PreparedStatementState is a limited interface that exposes metadata about prepared statements.

type PrettyAlignMode 

type PrettyAlignMode int

PrettyAlignMode directs which alignment mode to use.

TODO(knz/mjibson): this variety of options currently exists so as to enable comparisons and gauging individual preferences. We should aim to remove some or all of these options in the future.

type PrettyCfg 

type PrettyCfg struct {
	// LineWidth is the desired maximum line width.
	LineWidth int
	// TabWidth is the amount of spaces to use for tabs when UseTabs is
	// false.
	TabWidth int
	// Align, when set to another value than PrettyNoAlign, uses
	// alignment for some constructs as a first choice. If not set or if
	// the line width is insufficient, nesting is used instead.
	Align PrettyAlignMode
	// UseTabs indicates whether to use tab chars to signal indentation.
	UseTabs bool
	// Simplify, when set, removes extraneous parentheses.
	Simplify bool
	// Case, if set, transforms case-insensitive strings (like SQL keywords).
	Case func(string) string
	// JSONFmt, when set, pretty-prints strings that are asserted or cast
	// to JSON.
	JSONFmt bool
}

PrettyCfg holds configuration for pretty printing statements.

func DefaultPrettyCfg 

func DefaultPrettyCfg() PrettyCfg

DefaultPrettyCfg returns a PrettyCfg with the default configuration.

func (*PrettyCfg) Doc 

func (p *PrettyCfg) Doc(f NodeFormatter) pretty.Doc

Doc converts f (generally a Statement) to a pretty.Doc. If f does not have a native conversion, its .Format representation is used as a simple Text Doc.

func (*PrettyCfg) Pretty 

func (p *PrettyCfg) Pretty(stmt NodeFormatter) string

Pretty pretty prints stmt with specified options.

type PrimaryKeyConstraint 

type PrimaryKeyConstraint struct {
	StorageParams StorageParams
}

PrimaryKeyConstraint represents PRIMARY KEY on a column.

type PrivilegedAccessor 

type PrivilegedAccessor interface {
	// LookupNamespaceID returns the id of the namespace given it's parent id and name.
	// It is meant as a replacement for looking up the system.namespace directly.
	// Returns the id, a bool representing whether the namespace exists, and an error
	// if there is one.
	LookupNamespaceID(
		ctx context.Context, parentID int64, parentSchemaID int64, name string,
	) (DInt, bool, error)

	// LookupZoneConfigByNamespaceID returns the zone config given a namespace id.
	// It is meant as a replacement for looking up system.zones directly.
	// Returns the config byte array, a bool representing whether the namespace exists,
	// and an error if there is one.
	LookupZoneConfigByNamespaceID(ctx context.Context, id int64) (DBytes, bool, error)
}

PrivilegedAccessor gives access to certain queries that would otherwise require someone with RootUser access to query a given data source. It is defined independently to prevent a circular dependency on sql, tree and sqlbase.

type QualifiedNameResolver 

type QualifiedNameResolver interface {
	GetQualifiedTableNameByID(ctx context.Context, id int64, requiredType RequiredTableKind) (*TableName, error)
	CurrentDatabase() string
}

QualifiedNameResolver is the helper interface to resolve qualified table names given an ID and the required table kind, as well as the current database to determine whether or not to include the database in the qualification.

type QueryArguments 

type QueryArguments []TypedExpr

QueryArguments stores query arguments, one per PlaceholderIdx.

A nil value represents a NULL argument.

func (QueryArguments) String 

func (qa QueryArguments) String() string

type RangeCond 

type RangeCond struct {
	Not       bool
	Symmetric bool
	Left      Expr
	From, To  Expr
	// contains filtered or unexported fields
}

RangeCond represents a BETWEEN [SYMMETRIC] or a NOT BETWEEN [SYMMETRIC] expression.

func (*RangeCond) Eval 

func (expr *RangeCond) Eval(ctx *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*RangeCond) Format 

func (node *RangeCond) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (RangeCond) ResolvedType 

func (ta RangeCond) ResolvedType() *types.T

func (*RangeCond) String 

func (node *RangeCond) String() string

func (*RangeCond) TypeCheck 

func (expr *RangeCond) TypeCheck(
	ctx context.Context, semaCtx *SemaContext, desired *types.T,
) (TypedExpr, error)

TypeCheck implements the Expr interface.

func (*RangeCond) TypedFrom 

func (node *RangeCond) TypedFrom() TypedExpr

TypedFrom returns the RangeCond's from expression as a TypedExpr.

func (*RangeCond) TypedLeftFrom 

func (node *RangeCond) TypedLeftFrom() TypedExpr

TypedLeftFrom returns the RangeCond's left expression as a TypedExpr, in the context of a comparison with TypedFrom().

func (*RangeCond) TypedLeftTo 

func (node *RangeCond) TypedLeftTo() TypedExpr

TypedLeftTo returns the RangeCond's left expression as a TypedExpr, in the context of a comparison with TypedTo().

func (*RangeCond) TypedTo 

func (node *RangeCond) TypedTo() TypedExpr

TypedTo returns the RangeCond's to expression as a TypedExpr.

func (*RangeCond) Walk 

func (expr *RangeCond) Walk(v Visitor) Expr

Walk implements the Expr interface.

type RangePartition 

type RangePartition struct {
	Name         UnrestrictedName
	From         Exprs
	To           Exprs
	Subpartition *PartitionBy
}

RangePartition represents a PARTITION definition within a PARTITION BY RANGE.

func (*RangePartition) Format 

func (node *RangePartition) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type ReadWriteMode 

type ReadWriteMode int

ReadWriteMode holds the read write mode for a transaction. 

const (
	UnspecifiedReadWriteMode ReadWriteMode = iota
	ReadOnly
	ReadWrite
)

ReadWriteMode values

func (ReadWriteMode) String 

func (ro ReadWriteMode) String() string

type ReassignOwnedBy 

type ReassignOwnedBy struct {
	OldRoles RoleSpecList
	NewRole  RoleSpec
}

ReassignOwnedBy represents a REASSIGN OWNED BY <name> TO <name> statement.

func (*ReassignOwnedBy) Format 

func (node *ReassignOwnedBy) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ReassignOwnedBy) StatementReturnType 

func (*ReassignOwnedBy) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ReassignOwnedBy) StatementTag 

func (*ReassignOwnedBy) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ReassignOwnedBy) StatementType 

func (*ReassignOwnedBy) StatementType() StatementType

StatementType implements the Statement interface.

func (*ReassignOwnedBy) String 

func (n *ReassignOwnedBy) String() string

type ReferenceAction 

type ReferenceAction int

ReferenceAction is the method used to maintain referential integrity through foreign keys. 

const (
	NoAction ReferenceAction = iota
	Restrict
	SetNull
	SetDefault
	Cascade
)

The values for ReferenceAction.

func (ReferenceAction) String 

func (ra ReferenceAction) String() string

type ReferenceActions 

type ReferenceActions struct {
	Delete ReferenceAction
	Update ReferenceAction
}

ReferenceActions contains the actions specified to maintain referential integrity through foreign keys for different operations.

func (*ReferenceActions) Format 

func (node *ReferenceActions) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type RefreshDataOption 

type RefreshDataOption int

RefreshDataOption corresponds to arguments for the REFRESH MATERIALIZED VIEW statement. 

const (
	// RefreshDataDefault refers to no option provided to the REFRESH MATERIALIZED
	// VIEW statement.
	RefreshDataDefault RefreshDataOption = iota
	// RefreshDataWithData refers to the WITH DATA option provided to the REFRESH
	// MATERIALIZED VIEW statement.
	RefreshDataWithData
	// RefreshDataClear refers to the WITH NO DATA option provided to the REFRESH
	// MATERIALIZED VIEW statement.
	RefreshDataClear
)

type RefreshMaterializedView 

type RefreshMaterializedView struct {
	Name              *UnresolvedObjectName
	Concurrently      bool
	RefreshDataOption RefreshDataOption
}

RefreshMaterializedView represents a REFRESH MATERIALIZED VIEW statement.

func (*RefreshMaterializedView) Format 

func (node *RefreshMaterializedView) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*RefreshMaterializedView) StatementReturnType 

func (*RefreshMaterializedView) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*RefreshMaterializedView) StatementTag 

func (*RefreshMaterializedView) StatementTag() string

StatementTag implements the Statement interface.

func (*RefreshMaterializedView) StatementType 

func (*RefreshMaterializedView) StatementType() StatementType

StatementType implements the Statement interface.

func (*RefreshMaterializedView) String 

func (n *RefreshMaterializedView) String() string

type RegexpCache 

type RegexpCache struct {
	// contains filtered or unexported fields
}

A RegexpCache is a cache used to store compiled regular expressions. The cache is safe for concurrent use by multiple goroutines. It is also safe to use the cache through a nil reference, where it will act like a valid cache with no capacity.

func (*RegexpCache) GetRegexp 

func (rc *RegexpCache) GetRegexp(key RegexpCacheKey) (*regexp.Regexp, error)

GetRegexp consults the cache for the regular expressions stored for the given key, compiling the key's pattern if it is not already in the cache.

func (*RegexpCache) Len 

func (rc *RegexpCache) Len() int

Len returns the number of compiled regular expressions in the cache.

type RegexpCacheKey 

type RegexpCacheKey interface {
	Pattern() (string, error)
}

RegexpCacheKey allows cache keys to take the form of different types, as long as they are comparable and can produce a pattern when needed for regexp compilation. The pattern method will not be called until after a cache lookup is performed and the result is a miss.

type RegionOperator 

type RegionOperator interface {

	// CurrentDatabaseRegionConfig returns the RegionConfig of the current
	// session database.
	CurrentDatabaseRegionConfig(ctx context.Context) (DatabaseRegionConfig, error)

	// ValidateAllMultiRegionZoneConfigsInCurrentDatabase validates whether the current
	// database's multi-region zone configs are correctly setup. This includes
	// all tables within the database.
	ValidateAllMultiRegionZoneConfigsInCurrentDatabase(ctx context.Context) error

	// ResetMultiRegionZoneConfigsForTable resets the given table's zone
	// configuration to its multi-region default.
	ResetMultiRegionZoneConfigsForTable(ctx context.Context, id int64) error

	// ResetMultiRegionZoneConfigsForDatabase resets the given database's zone
	// configuration to its multi-region default.
	ResetMultiRegionZoneConfigsForDatabase(ctx context.Context, id int64) error
}

RegionOperator gives access to the current region, validation for all regions, and the ability to reset the zone configurations for tables or databases.

type ReleaseSavepoint 

type ReleaseSavepoint struct {
	Savepoint Name
}

ReleaseSavepoint represents a RELEASE SAVEPOINT <name> statement.

func (*ReleaseSavepoint) Format 

func (node *ReleaseSavepoint) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ReleaseSavepoint) StatementReturnType 

func (*ReleaseSavepoint) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ReleaseSavepoint) StatementTag 

func (*ReleaseSavepoint) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ReleaseSavepoint) StatementType 

func (*ReleaseSavepoint) StatementType() StatementType

StatementType implements the Statement interface.

func (*ReleaseSavepoint) String 

func (n *ReleaseSavepoint) String() string

type Relocate 

type Relocate struct {
	// TODO(a-robinson): It's not great that this can only work on ranges that
	// are part of a currently valid table or index.
	TableOrIndex TableIndexName
	// Each row contains an array with store ids and values for the columns in the
	// PK or index (or a prefix of the columns).
	// See docs/RFCS/sql_split_syntax.md.
	Rows            *Select
	SubjectReplicas RelocateSubject
}

Relocate represents an `ALTER TABLE/INDEX .. EXPERIMENTAL_RELOCATE ..` statement.

func (*Relocate) Format 

func (node *Relocate) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*Relocate) StatementReturnType 

func (*Relocate) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*Relocate) StatementTag 

func (n *Relocate) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*Relocate) StatementType 

func (*Relocate) StatementType() StatementType

StatementType implements the Statement interface.

func (*Relocate) String 

func (n *Relocate) String() string

type RelocateRange 

type RelocateRange struct {
	Rows            *Select
	ToStoreID       Expr
	FromStoreID     Expr
	SubjectReplicas RelocateSubject
}

RelocateRange represents an `ALTER RANGE .. RELOCATE ..` statement.

func (*RelocateRange) Format 

func (n *RelocateRange) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*RelocateRange) StatementReturnType 

func (*RelocateRange) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*RelocateRange) StatementTag 

func (n *RelocateRange) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*RelocateRange) StatementType 

func (*RelocateRange) StatementType() StatementType

StatementType implements the Statement interface.

func (*RelocateRange) String 

func (n *RelocateRange) String() string

type RelocateSubject 

type RelocateSubject int8

RelocateSubject indicates what replicas of a range should be relocated. 

const (
	// RelocateLease indicates that leases should be relocated.
	RelocateLease RelocateSubject = iota
	// RelocateVoters indicates what voter replicas should be relocated.
	RelocateVoters
	// RelocateNonVoters indicates that non-voter replicas should be relocated.
	RelocateNonVoters
)

func (*RelocateSubject) Format 

func (n *RelocateSubject) Format(ctx *FmtCtx)

Format implementsthe NodeFormatter interface.

func (RelocateSubject) String 

func (n RelocateSubject) String() string

type RenameColumn 

type RenameColumn struct {
	Table   TableName
	Name    Name
	NewName Name
	// IfExists refers to the table, not the column.
	IfExists bool
}

RenameColumn represents a RENAME COLUMN statement.

func (*RenameColumn) Format 

func (node *RenameColumn) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*RenameColumn) StatementReturnType 

func (*RenameColumn) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*RenameColumn) StatementTag 

func (*RenameColumn) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*RenameColumn) StatementType 

func (*RenameColumn) StatementType() StatementType

StatementType implements the Statement interface.

func (*RenameColumn) String 

func (n *RenameColumn) String() string

type RenameDatabase 

type RenameDatabase struct {
	Name    Name
	NewName Name
}

RenameDatabase represents a RENAME DATABASE statement.

func (*RenameDatabase) Format 

func (node *RenameDatabase) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*RenameDatabase) StatementReturnType 

func (*RenameDatabase) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*RenameDatabase) StatementTag 

func (*RenameDatabase) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*RenameDatabase) StatementType 

func (*RenameDatabase) StatementType() StatementType

StatementType implements the Statement interface.

func (*RenameDatabase) String 

func (n *RenameDatabase) String() string

type RenameIndex 

type RenameIndex struct {
	Index    *TableIndexName
	NewName  UnrestrictedName
	IfExists bool
}

RenameIndex represents a RENAME INDEX statement.

func (*RenameIndex) Format 

func (node *RenameIndex) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*RenameIndex) StatementReturnType 

func (*RenameIndex) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*RenameIndex) StatementTag 

func (*RenameIndex) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*RenameIndex) StatementType 

func (*RenameIndex) StatementType() StatementType

StatementType implements the Statement interface.

func (*RenameIndex) String 

func (n *RenameIndex) String() string

type RenameTable 

type RenameTable struct {
	Name           *UnresolvedObjectName
	NewName        *UnresolvedObjectName
	IfExists       bool
	IsView         bool
	IsMaterialized bool
	IsSequence     bool
}

RenameTable represents a RENAME TABLE or RENAME VIEW or RENAME SEQUENCE statement. Whether the user has asked to rename a view or a sequence is indicated by the IsView and IsSequence fields.

func (*RenameTable) Format 

func (node *RenameTable) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*RenameTable) StatementReturnType 

func (*RenameTable) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*RenameTable) StatementTag 

func (n *RenameTable) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*RenameTable) StatementType 

func (*RenameTable) StatementType() StatementType

StatementType implements the Statement interface.

func (*RenameTable) String 

func (n *RenameTable) String() string

type ReparentDatabase 

type ReparentDatabase struct {
	Name   Name
	Parent Name
}

ReparentDatabase represents a database reparenting as a schema operation.

func (*ReparentDatabase) Format 

func (node *ReparentDatabase) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ReparentDatabase) StatementReturnType 

func (*ReparentDatabase) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ReparentDatabase) StatementTag 

func (*ReparentDatabase) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ReparentDatabase) StatementType 

func (*ReparentDatabase) StatementType() StatementType

StatementType implements the Statement interface.

func (*ReparentDatabase) String 

func (n *ReparentDatabase) String() string

type ReplicationOptions 

type ReplicationOptions struct {
	Cursor   Expr
	Detached bool
}

ReplicationOptions describes options for streaming replication.

func (*ReplicationOptions) CombineWith 

func (o *ReplicationOptions) CombineWith(other *ReplicationOptions) error

CombineWith merges other backup options into this backup options struct. An error is returned if the same option merged multiple times.

func (*ReplicationOptions) Format 

func (o *ReplicationOptions) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface

func (ReplicationOptions) IsDefault 

func (o ReplicationOptions) IsDefault() bool

IsDefault returns true if this backup options struct has default value.

type ReplicationStream 

type ReplicationStream struct {
	Targets TargetList
	SinkURI Expr
	Options ReplicationOptions
}

ReplicationStream represents a CREATE REPLICATION STREAM statement.

func (*ReplicationStream) Format 

func (n *ReplicationStream) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ReplicationStream) StatementReturnType 

func (*ReplicationStream) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ReplicationStream) StatementTag 

func (*ReplicationStream) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ReplicationStream) StatementType 

func (*ReplicationStream) StatementType() StatementType

StatementType implements the Statement interface.

func (*ReplicationStream) String 

func (n *ReplicationStream) String() string

type RequiredTableKind 

type RequiredTableKind int

RequiredTableKind controls what kind of TableDescriptor backed object is requested to be resolved. 

const (
	ResolveAnyTableKind RequiredTableKind = iota
	ResolveRequireTableDesc
	ResolveRequireViewDesc
	ResolveRequireTableOrViewDesc
	ResolveRequireSequenceDesc
)

RequiredTableKind options have descriptive names.

func (RequiredTableKind) String 

func (r RequiredTableKind) String() string

type ResolvableFunctionReference 

type ResolvableFunctionReference struct {
	FunctionReference
}

ResolvableFunctionReference implements the editable reference cell of a FuncExpr. The FunctionRerence is updated by the Normalize() method.

func WrapFunction 

func WrapFunction(n string) ResolvableFunctionReference

WrapFunction creates a new ResolvableFunctionReference holding a pre-resolved function. Helper for grammar rules.

func (*ResolvableFunctionReference) Format 

func (fn *ResolvableFunctionReference) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ResolvableFunctionReference) Resolve 

func (fn *ResolvableFunctionReference) Resolve(
	searchPath sessiondata.SearchPath,
) (*FunctionDefinition, error)

Resolve checks if the function name is already resolved and resolves it as necessary.

func (*ResolvableFunctionReference) String 

func (fn *ResolvableFunctionReference) String() string

type ResolvableTypeReference 

type ResolvableTypeReference interface {
	SQLString() string
}

ResolvableTypeReference represents a type that is possibly unknown until type-checking/type name resolution is performed. N.B. ResolvableTypeReferences in expressions must be formatted with FormatTypeReference instead of SQLString.

type Restore 

type Restore struct {
	Targets TargetList
	// Whether this is the RESTORE SYSTEM USERS variant of RESTORE statement.
	SystemUsers        bool
	DescriptorCoverage DescriptorCoverage

	// From contains the URIs for the backup(s) we seek to restore.
	//   - len(From)>1 implies the user explicitly passed incremental backup paths,
	//     which is only allowed using the old syntax, `RESTORE <targets> FROM <destination>.
	//     In this case, From[0] contains the URI(s) for the full backup.
	//   - len(From)==1 implies we'll have to look for incremental backups in planning
	//   - len(From[0]) > 1 implies the backups are locality aware
	//   - From[i][0] must be the default locality.
	From    []StringOrPlaceholderOptList
	AsOf    AsOfClause
	Options RestoreOptions

	// Subdir may be set by the parser when the SQL query is of the form `RESTORE
	// ... FROM 'from' IN 'subdir'...`. Alternatively, restore_planning.go will set
	// it for the query `RESTORE ... FROM 'from' IN LATEST...`
	Subdir Expr
}

Restore represents a RESTORE statement.

func (*Restore) Format 

func (node *Restore) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*Restore) StatementReturnType 

func (*Restore) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*Restore) StatementTag 

func (*Restore) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*Restore) StatementType 

func (*Restore) StatementType() StatementType

StatementType implements the Statement interface.

func (*Restore) String 

func (n *Restore) String() string

type RestoreOptions 

type RestoreOptions struct {
	EncryptionPassphrase      Expr
	DecryptionKMSURI          StringOrPlaceholderOptList
	IntoDB                    Expr
	SkipMissingFKs            bool
	SkipMissingSequences      bool
	SkipMissingSequenceOwners bool
	SkipMissingViews          bool
	Detached                  bool
	SkipLocalitiesCheck       bool
	DebugPauseOn              Expr
	NewDBName                 Expr
	IncrementalStorage        StringOrPlaceholderOptList
	AsTenant                  Expr
}

RestoreOptions describes options for the RESTORE execution.

func (*RestoreOptions) CombineWith 

func (o *RestoreOptions) CombineWith(other *RestoreOptions) error

CombineWith merges other backup options into this backup options struct. An error is returned if the same option merged multiple times.

func (*RestoreOptions) Format 

func (o *RestoreOptions) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (RestoreOptions) IsDefault 

func (o RestoreOptions) IsDefault() bool

IsDefault returns true if this backup options struct has default value.

type ReturnTyper 

type ReturnTyper func(args []TypedExpr) *types.T

ReturnTyper defines the type-level function in which a builtin function's return type is determined. ReturnTypers should make sure to return unknownReturnType when necessary.

func ArrayOfFirstNonNullReturnType 

func ArrayOfFirstNonNullReturnType() ReturnTyper

ArrayOfFirstNonNullReturnType returns an array type from the first non-null type in the argument list.

func FirstNonNullReturnType 

func FirstNonNullReturnType() ReturnTyper

FirstNonNullReturnType returns the type of the first non-null argument, or types.Unknown if all arguments are null. There must be at least one argument, or else FirstNonNullReturnType returns UnknownReturnType. This method is used with HomogeneousType functions, in which all arguments have been checked to have the same type (or be null).

func FixedReturnType 

func FixedReturnType(typ *types.T) ReturnTyper

FixedReturnType functions simply return a fixed type, independent of argument types.

func IdentityReturnType 

func IdentityReturnType(idx int) ReturnTyper

IdentityReturnType creates a returnType that is a projection of the idx'th argument type.

type ReturningClause 

type ReturningClause interface {
	NodeFormatter
	// contains filtered or unexported methods
}

ReturningClause represents the returning clause on a statement.

type ReturningExprs 

type ReturningExprs SelectExprs

ReturningExprs represents RETURNING expressions.

func (*ReturningExprs) Format 

func (r *ReturningExprs) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type ReturningNothing 

type ReturningNothing struct{}

ReturningNothing represents RETURNING NOTHING.

func (*ReturningNothing) Format 

func (*ReturningNothing) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type Revoke 

type Revoke struct {
	Privileges     privilege.List
	Targets        TargetList
	Grantees       RoleSpecList
	GrantOptionFor bool
}

Revoke represents a REVOKE statement. PrivilegeList and TargetList are defined in grant.go

func (*Revoke) Format 

func (node *Revoke) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*Revoke) StatementReturnType 

func (*Revoke) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*Revoke) StatementTag 

func (*Revoke) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*Revoke) StatementType 

func (*Revoke) StatementType() StatementType

StatementType implements the Statement interface.

func (*Revoke) String 

func (n *Revoke) String() string

type RevokeRole 

type RevokeRole struct {
	Roles       NameList
	Members     RoleSpecList
	AdminOption bool
}

RevokeRole represents a REVOKE <role> statement.

func (*RevokeRole) Format 

func (node *RevokeRole) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*RevokeRole) StatementReturnType 

func (*RevokeRole) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*RevokeRole) StatementTag 

func (*RevokeRole) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*RevokeRole) StatementType 

func (*RevokeRole) StatementType() StatementType

StatementType implements the Statement interface.

func (*RevokeRole) String 

func (n *RevokeRole) String() string

type RoleSpec 

type RoleSpec struct {
	RoleSpecType RoleSpecType
	Name         string
}

RoleSpec represents a role. Name should only be populated if RoleSpecType is RoleName.

func MakeRoleSpecWithRoleName 

func MakeRoleSpecWithRoleName(name string) RoleSpec

MakeRoleSpecWithRoleName creates a RoleSpec using a RoleName.

func (*RoleSpec) Format 

func (r *RoleSpec) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (RoleSpec) Undefined 

func (r RoleSpec) Undefined() bool

Undefined returns if RoleSpec is undefined.

type RoleSpecList 

type RoleSpecList []RoleSpec

RoleSpecList is a list of RoleSpec.

func (*RoleSpecList) Format 

func (l *RoleSpecList) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type RoleSpecType 

type RoleSpecType int

RoleSpecType represents whether the RoleSpec is represented by string name or if the spec is CURRENT_USER or SESSION_USER. 

const (
	// RoleName represents if a RoleSpec is defined using an IDENT or
	// unreserved_keyword in the grammar.
	RoleName RoleSpecType = iota
	// CurrentUser represents if a RoleSpec is defined using CURRENT_USER.
	CurrentUser
	// SessionUser represents if a RoleSpec is defined using SESSION_USER.
	SessionUser
)

func (RoleSpecType) String 

func (r RoleSpecType) String() string

type RollbackToSavepoint 

type RollbackToSavepoint struct {
	Savepoint Name
}

RollbackToSavepoint represents a ROLLBACK TO SAVEPOINT <name> statement.

func (*RollbackToSavepoint) Format 

func (node *RollbackToSavepoint) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*RollbackToSavepoint) StatementReturnType 

func (*RollbackToSavepoint) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*RollbackToSavepoint) StatementTag 

func (*RollbackToSavepoint) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*RollbackToSavepoint) StatementType 

func (*RollbackToSavepoint) StatementType() StatementType

StatementType implements the Statement interface.

func (*RollbackToSavepoint) String 

func (n *RollbackToSavepoint) String() string

type RollbackTransaction 

type RollbackTransaction struct{}

RollbackTransaction represents a ROLLBACK statement.

func (*RollbackTransaction) Format 

func (node *RollbackTransaction) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*RollbackTransaction) StatementReturnType 

func (*RollbackTransaction) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*RollbackTransaction) StatementTag 

func (*RollbackTransaction) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*RollbackTransaction) StatementType 

func (*RollbackTransaction) StatementType() StatementType

StatementType implements the Statement interface.

func (*RollbackTransaction) String 

func (n *RollbackTransaction) String() string

type RowsFromExpr 

type RowsFromExpr struct {
	Items Exprs
}

RowsFromExpr represents a ROWS FROM(...) expression.

func (*RowsFromExpr) Format 

func (node *RowsFromExpr) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*RowsFromExpr) WalkTableExpr 

func (expr *RowsFromExpr) WalkTableExpr(v Visitor) TableExpr

WalkTableExpr implements the TableExpr interface.

type SQLStatsController 

type SQLStatsController interface {
	ResetClusterSQLStats(ctx context.Context) error
	CreateSQLStatsCompactionSchedule(ctx context.Context) error
}

SQLStatsController is an interface embedded in EvalCtx which can be used by the builtins to reset SQL stats in the cluster. This interface is introduced to avoid circular dependency.

type Savepoint 

type Savepoint struct {
	Name Name
}

Savepoint represents a SAVEPOINT <name> statement.

func (*Savepoint) Format 

func (node *Savepoint) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*Savepoint) StatementReturnType 

func (*Savepoint) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*Savepoint) StatementTag 

func (*Savepoint) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*Savepoint) StatementType 

func (*Savepoint) StatementType() StatementType

StatementType implements the Statement interface.

func (*Savepoint) String 

func (n *Savepoint) String() string

type ScalarProperties 

type ScalarProperties struct {
	// SeenAggregate is set to true if the expression originally
	// contained an aggregation.
	SeenAggregate bool

	// SeenWindowApplication is set to true if the expression originally
	// contained a window function.
	SeenWindowApplication bool

	// SeenGenerator is set to true if the expression originally
	// contained a SRF.
	SeenGenerator bool

	// InWindowFunc is temporarily set to true while type checking the
	// parameters of a window function in order to reject nested window
	// functions.
	InWindowFunc bool
	// contains filtered or unexported fields
}

ScalarProperties contains the properties of the current scalar expression discovered during semantic analysis. The properties are collected prior to simplification, so some of the properties may not hold anymore by the time semantic analysis completes.

func (*ScalarProperties) Clear 

func (sp *ScalarProperties) Clear()

Clear resets the scalar properties to defaults.

type Scatter 

type Scatter struct {
	TableOrIndex TableIndexName
	// Optional from and to values for the columns in the PK or index (or a prefix
	// of the columns).
	// See docs/RFCS/sql_split_syntax.md.
	From, To Exprs
}

Scatter represents an `ALTER TABLE/INDEX .. SCATTER ..` statement.

func (*Scatter) Format 

func (node *Scatter) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*Scatter) StatementReturnType 

func (*Scatter) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*Scatter) StatementTag 

func (*Scatter) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*Scatter) StatementType 

func (*Scatter) StatementType() StatementType

StatementType implements the Statement interface.

func (*Scatter) String 

func (n *Scatter) String() string

type ScheduleCommand 

type ScheduleCommand int

ScheduleCommand determines which type of action to effect on the selected job(s). 

const (
	PauseSchedule ScheduleCommand = iota
	ResumeSchedule
	DropSchedule
)

ScheduleCommand values

func (ScheduleCommand) String 

func (c ScheduleCommand) String() string

type ScheduleLabelSpec 

type ScheduleLabelSpec struct {
	IfNotExists bool
	Label       Expr
}

ScheduleLabelSpec describes the labeling specification for a scheduled job.

type ScheduleState 

type ScheduleState int

ScheduleState describes what kind of schedules to display 

const (
	// SpecifiedSchedules indicates that show schedules should
	// only show subset of schedules.
	SpecifiedSchedules ScheduleState = iota

	// ActiveSchedules indicates that show schedules should
	// only show those schedules that are currently active.
	ActiveSchedules

	// PausedSchedules indicates that show schedules should
	// only show those schedules that are currently paused.
	PausedSchedules
)

func (ScheduleState) Format 

func (s ScheduleState) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type ScheduledBackup 

type ScheduledBackup struct {
	ScheduleLabelSpec ScheduleLabelSpec
	Recurrence        Expr
	FullBackup        *FullBackupClause /* nil implies choose default */
	Targets           *TargetList       /* nil implies tree.AllDescriptors coverage */
	To                StringOrPlaceholderOptList
	BackupOptions     BackupOptions
	ScheduleOptions   KVOptions
}

ScheduledBackup represents scheduled backup job.

func (ScheduledBackup) Coverage 

func (node ScheduledBackup) Coverage() DescriptorCoverage

Coverage return the coverage (all vs requested).

func (*ScheduledBackup) Format 

func (node *ScheduledBackup) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ScheduledBackup) StatementReturnType 

func (*ScheduledBackup) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ScheduledBackup) StatementTag 

func (*ScheduledBackup) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ScheduledBackup) StatementType 

func (*ScheduledBackup) StatementType() StatementType

StatementType implements the Statement interface.

func (*ScheduledBackup) String 

func (n *ScheduledBackup) String() string

type ScheduledJobExecutorType 

type ScheduledJobExecutorType int

ScheduledJobExecutorType is a type identifying the names of the supported scheduled job executors. 

const (
	// InvalidExecutor is a placeholder for an invalid executor type.
	InvalidExecutor ScheduledJobExecutorType = iota

	// ScheduledBackupExecutor is an executor responsible for
	// the execution of the scheduled backups.
	ScheduledBackupExecutor

	// ScheduledSQLStatsCompactionExecutor is an executor responsible for the
	// execution of the scheduled SQL Stats compaction.
	ScheduledSQLStatsCompactionExecutor

	// ScheduledRowLevelTTLExecutor is an executor responsible for the cleanup
	// of rows on row level TTL tables.
	ScheduledRowLevelTTLExecutor
)

func (ScheduledJobExecutorType) InternalName 

func (t ScheduledJobExecutorType) InternalName() string

InternalName returns an internal executor name. This name can be used to filter matching schedules.

func (ScheduledJobExecutorType) UserName 

func (t ScheduledJobExecutorType) UserName() string

UserName returns a user friendly executor name.

type SchemaFeatureName 

type SchemaFeatureName string

SchemaFeatureName feature name for a given statement, which can be used to detect via the feature check functions if the schema change is allowed.

func GetSchemaFeatureNameFromStmt 

func GetSchemaFeatureNameFromStmt(stmt Statement) SchemaFeatureName

GetSchemaFeatureNameFromStmt takes a statement and converts it to a schema feature name, which can be enabled or disabled via a feature flag.

type SchemaLookupFlags 

type SchemaLookupFlags = CommonLookupFlags

SchemaLookupFlags is the flag struct suitable for GetSchemaByName().

type Scrub 

type Scrub struct {
	Typ     ScrubType
	Options ScrubOptions
	// Table is only set during SCRUB TABLE statements.
	Table *UnresolvedObjectName
	// Database is only set during SCRUB DATABASE statements.
	Database Name
	AsOf     AsOfClause
}

Scrub represents a SCRUB statement.

func (*Scrub) Format 

func (n *Scrub) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*Scrub) StatementReturnType 

func (*Scrub) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*Scrub) StatementTag 

func (n *Scrub) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*Scrub) StatementType 

func (*Scrub) StatementType() StatementType

StatementType implements the Statement interface.

func (*Scrub) String 

func (n *Scrub) String() string

type ScrubOption 

type ScrubOption interface {
	fmt.Stringer
	NodeFormatter
	// contains filtered or unexported methods
}

ScrubOption represents a scrub option.

type ScrubOptionConstraint 

type ScrubOptionConstraint struct {
	ConstraintNames NameList
}

ScrubOptionConstraint represents a CONSTRAINT scrub check.

func (*ScrubOptionConstraint) Format 

func (n *ScrubOptionConstraint) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ScrubOptionConstraint) String 

func (n *ScrubOptionConstraint) String() string

type ScrubOptionIndex 

type ScrubOptionIndex struct {
	IndexNames NameList
}

ScrubOptionIndex represents an INDEX scrub check.

func (*ScrubOptionIndex) Format 

func (n *ScrubOptionIndex) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ScrubOptionIndex) String 

func (n *ScrubOptionIndex) String() string

type ScrubOptionPhysical 

type ScrubOptionPhysical struct{}

ScrubOptionPhysical represents a PHYSICAL scrub check.

func (*ScrubOptionPhysical) Format 

func (n *ScrubOptionPhysical) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ScrubOptionPhysical) String 

func (n *ScrubOptionPhysical) String() string

type ScrubOptions 

type ScrubOptions []ScrubOption

ScrubOptions corresponds to a comma-delimited list of scrub options.

func (*ScrubOptions) Format 

func (n *ScrubOptions) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ScrubOptions) String 

func (n *ScrubOptions) String() string

type ScrubType 

type ScrubType int

ScrubType describes the SCRUB statement operation.

type Select 

type Select struct {
	With    *With
	Select  SelectStatement
	OrderBy OrderBy
	Limit   *Limit
	Locking LockingClause
}

Select represents a SelectStatement with an ORDER and/or LIMIT.

func (*Select) Format 

func (node *Select) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*Select) StatementReturnType 

func (*Select) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*Select) StatementTag 

func (*Select) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*Select) StatementType 

func (*Select) StatementType() StatementType

StatementType implements the Statement interface.

func (*Select) String 

func (n *Select) String() string

type SelectClause 

type SelectClause struct {
	From        From
	DistinctOn  DistinctOn
	Exprs       SelectExprs
	GroupBy     GroupBy
	Window      Window
	Having      *Where
	Where       *Where
	Distinct    bool
	TableSelect bool
}

SelectClause represents a SELECT statement.

func (*SelectClause) Format 

func (node *SelectClause) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*SelectClause) StatementReturnType 

func (*SelectClause) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*SelectClause) StatementTag 

func (*SelectClause) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*SelectClause) StatementType 

func (*SelectClause) StatementType() StatementType

StatementType implements the Statement interface.

func (*SelectClause) String 

func (n *SelectClause) String() string

type SelectExpr 

type SelectExpr struct {
	Expr Expr
	As   UnrestrictedName
}

SelectExpr represents a SELECT expression.

func StarSelectExpr 

func StarSelectExpr() SelectExpr

StarSelectExpr is a convenience function that represents an unqualified "*" in a select expression.

func (*SelectExpr) Format 

func (node *SelectExpr) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*SelectExpr) NormalizeTopLevelVarName 

func (node *SelectExpr) NormalizeTopLevelVarName() error

NormalizeTopLevelVarName preemptively expands any UnresolvedName at the top level of the expression into a VarName. This is meant to catch stars so that sql.checkRenderStar() can see it prior to other expression transformations.

type SelectExprs 

type SelectExprs []SelectExpr

SelectExprs represents SELECT expressions.

func (*SelectExprs) Format 

func (node *SelectExprs) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type SelectStatement 

type SelectStatement interface {
	Statement
	// contains filtered or unexported methods
}

SelectStatement represents any SELECT statement.

type SemaContext 

type SemaContext struct {
	// Annotations augments the AST with extra information.
	Annotations Annotations

	// Placeholders relates placeholder names to their type and, later, value.
	Placeholders PlaceholderInfo

	// IVarContainer is used to resolve the types of IndexedVars.
	IVarContainer IndexedVarContainer

	// SearchPath indicates where to search for unqualified function
	// names. The path elements must be normalized via Name.Normalize()
	// already.
	SearchPath sessiondata.SearchPath

	// TypeResolver manages resolving type names into *types.T's.
	TypeResolver TypeReferenceResolver

	// TableNameResolver is used to resolve the fully qualified
	// name of a table given its ID.
	TableNameResolver QualifiedNameResolver

	// IntervalStyleEnabled determines whether IntervalStyle is enabled.
	IntervalStyleEnabled bool
	// DateStyleEnabled determines whether DateStyle is enabled.
	DateStyleEnabled bool

	Properties SemaProperties

	// DateStyle refers to the DateStyle to parse as.
	DateStyle pgdate.DateStyle
	// IntervalStyle refers to the IntervalStyle to parse as.
	IntervalStyle duration.IntervalStyle
}

SemaContext defines the context in which to perform semantic analysis on an expression syntax tree.

func MakeSemaContext 

func MakeSemaContext() SemaContext

MakeSemaContext initializes a simple SemaContext suitable for "lightweight" type checking such as the one performed for default expressions. Note: if queries with placeholders are going to be used, SemaContext.Placeholders.Init must be called separately.

func (*SemaContext) GetTypeResolver 

func (sc *SemaContext) GetTypeResolver() TypeReferenceResolver

GetTypeResolver returns the TypeReferenceResolver.

type SemaProperties 

type SemaProperties struct {

	// Derived is populated during semantic analysis with properties
	// from the expression being analyzed.  The caller is responsible
	// for re-initializing this when needed.
	Derived ScalarProperties
	// contains filtered or unexported fields
}

SemaProperties is a holder for required and derived properties during semantic analysis. It provides scoping semantics via its Restore() method, see below.

func (*SemaProperties) IsSet 

func (s *SemaProperties) IsSet(rejectFlags SemaRejectFlags) bool

IsSet checks if the given rejectFlag is set as a required property.

func (*SemaProperties) Require 

func (s *SemaProperties) Require(context string, rejectFlags SemaRejectFlags)

Require resets the derived properties and sets required constraints.

func (*SemaProperties) Restore 

func (s *SemaProperties) Restore(orig SemaProperties)

Restore restores a copy of a SemaProperties. Use with: defer semaCtx.Properties.Restore(semaCtx.Properties)

type SemaRejectFlags 

type SemaRejectFlags int

SemaRejectFlags contains flags to filter out certain kinds of expressions. 

const (
	// RejectAggregates rejects min(), max(), etc.
	RejectAggregates SemaRejectFlags = 1 << iota

	// RejectNestedAggregates rejects any use of aggregates inside the
	// argument list of another function call, which can itself be an aggregate
	// (RejectAggregates notwithstanding).
	RejectNestedAggregates

	// RejectNestedWindowFunctions rejects any use of window functions inside the
	// argument list of another window function.
	RejectNestedWindowFunctions

	// RejectWindowApplications rejects "x() over y", etc.
	RejectWindowApplications

	// RejectGenerators rejects any use of SRFs, e.g "generate_series()".
	RejectGenerators

	// RejectNestedGenerators rejects any use of SRFs inside the
	// argument list of another function call, which can itself be a SRF
	// (RejectGenerators notwithstanding).
	// This is used e.g. when processing the calls inside ROWS FROM.
	RejectNestedGenerators

	// RejectStableOperators rejects any stable functions or operators (including
	// casts).
	RejectStableOperators

	// RejectVolatileFunctions rejects any volatile functions.
	RejectVolatileFunctions

	// RejectSubqueries rejects subqueries in scalar contexts.
	RejectSubqueries

	// RejectSpecial is used in common places like the LIMIT clause.
	RejectSpecial = RejectAggregates | RejectGenerators | RejectWindowApplications
)

Valid values for SemaRejectFlags.

type SequenceOperators 

type SequenceOperators interface {

	// GetSerialSequenceNameFromColumn returns the sequence name for a given table and column
	// provided it is part of a SERIAL sequence.
	// Returns an empty string if the sequence name does not exist.
	GetSerialSequenceNameFromColumn(ctx context.Context, tableName *TableName, columnName Name) (*TableName, error)

	// IncrementSequenceByID increments the given sequence and returns the result.
	// It returns an error if the given ID is not a sequence.
	// Takes in a sequence ID rather than a name, unlike IncrementSequence.
	IncrementSequenceByID(ctx context.Context, seqID int64) (int64, error)

	// GetLatestValueInSessionForSequenceByID returns the value most recently obtained by
	// nextval() for the given sequence in this session.
	// Takes in a sequence ID rather than a name, unlike GetLatestValueInSessionForSequence.
	GetLatestValueInSessionForSequenceByID(ctx context.Context, seqID int64) (int64, error)

	// SetSequenceValueByID sets the sequence's value.
	// If isCalled is false, the sequence is set such that the next time nextval() is called,
	// `newVal` is returned. Otherwise, the next call to nextval will return
	// `newVal + seqOpts.Increment`.
	// Takes in a sequence ID rather than a name, unlike SetSequenceValue.
	SetSequenceValueByID(ctx context.Context, seqID uint32, newVal int64, isCalled bool) error
}

SequenceOperators is used for various sql related functions that can be used from EvalContext.

type SequenceOption 

type SequenceOption struct {
	Name string

	// AsIntegerType specifies default min and max values of a sequence.
	AsIntegerType *types.T

	IntVal *int64

	OptionalWord bool

	ColumnItemVal *ColumnItem
}

SequenceOption represents an option on a CREATE SEQUENCE statement.

type SequenceOptions 

type SequenceOptions []SequenceOption

SequenceOptions represents a list of sequence options.

func (*SequenceOptions) Format 

func (node *SequenceOptions) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type SetClusterSetting 

type SetClusterSetting struct {
	Name  string
	Value Expr
}

SetClusterSetting represents a SET CLUSTER SETTING statement.

func (*SetClusterSetting) Format 

func (node *SetClusterSetting) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*SetClusterSetting) StatementReturnType 

func (*SetClusterSetting) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*SetClusterSetting) StatementTag 

func (*SetClusterSetting) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*SetClusterSetting) StatementType 

func (*SetClusterSetting) StatementType() StatementType

StatementType implements the Statement interface.

func (*SetClusterSetting) String 

func (n *SetClusterSetting) String() string

type SetSessionAuthorizationDefault 

type SetSessionAuthorizationDefault struct{}

SetSessionAuthorizationDefault represents a SET SESSION AUTHORIZATION DEFAULT statement. This can be extended (and renamed) if we ever support names in the last position.

func (*SetSessionAuthorizationDefault) Format 

func (node *SetSessionAuthorizationDefault) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*SetSessionAuthorizationDefault) StatementReturnType 

func (*SetSessionAuthorizationDefault) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*SetSessionAuthorizationDefault) StatementTag 

func (*SetSessionAuthorizationDefault) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*SetSessionAuthorizationDefault) StatementType 

func (*SetSessionAuthorizationDefault) StatementType() StatementType

StatementType implements the Statement interface.

func (*SetSessionAuthorizationDefault) String 

func (n *SetSessionAuthorizationDefault) String() string

type SetSessionCharacteristics 

type SetSessionCharacteristics struct {
	Modes TransactionModes
}

SetSessionCharacteristics represents a SET SESSION CHARACTERISTICS AS TRANSACTION statement.

func (*SetSessionCharacteristics) Format 

func (node *SetSessionCharacteristics) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*SetSessionCharacteristics) StatementReturnType 

func (*SetSessionCharacteristics) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*SetSessionCharacteristics) StatementTag 

func (*SetSessionCharacteristics) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*SetSessionCharacteristics) StatementType 

func (*SetSessionCharacteristics) StatementType() StatementType

StatementType implements the Statement interface.

func (*SetSessionCharacteristics) String 

func (n *SetSessionCharacteristics) String() string

type SetTracing 

type SetTracing struct {
	Values Exprs
}

SetTracing represents a SET TRACING statement.

func (*SetTracing) Format 

func (node *SetTracing) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*SetTracing) StatementReturnType 

func (*SetTracing) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*SetTracing) StatementTag 

func (*SetTracing) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*SetTracing) StatementType 

func (*SetTracing) StatementType() StatementType

StatementType implements the Statement interface.

func (*SetTracing) String 

func (n *SetTracing) String() string

type SetTransaction 

type SetTransaction struct {
	Modes TransactionModes
}

SetTransaction represents a SET TRANSACTION statement.

func (*SetTransaction) Format 

func (node *SetTransaction) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*SetTransaction) StatementReturnType 

func (*SetTransaction) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*SetTransaction) StatementTag 

func (*SetTransaction) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*SetTransaction) StatementType 

func (*SetTransaction) StatementType() StatementType

StatementType implements the Statement interface.

func (*SetTransaction) String 

func (n *SetTransaction) String() string

type SetVar 

type SetVar struct {
	Name     string
	Local    bool
	Values   Exprs
	Reset    bool
	ResetAll bool
}

SetVar represents a SET or RESET statement.

func (*SetVar) Format 

func (node *SetVar) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*SetVar) StatementReturnType 

func (*SetVar) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*SetVar) StatementTag 

func (n *SetVar) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*SetVar) StatementType 

func (*SetVar) StatementType() StatementType

StatementType implements the Statement interface.

func (*SetVar) String 

func (n *SetVar) String() string

type SetZoneConfig 

type SetZoneConfig struct {
	ZoneSpecifier
	// AllIndexes indicates that the zone configuration should be applied across
	// all of a tables indexes. (ALTER PARTITION ... OF INDEX <tablename>@*)
	AllIndexes bool
	SetDefault bool
	YAMLConfig Expr
	Options    KVOptions
}

SetZoneConfig represents an ALTER DATABASE/TABLE... CONFIGURE ZONE statement.

func (*SetZoneConfig) Format 

func (node *SetZoneConfig) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*SetZoneConfig) StatementReturnType 

func (*SetZoneConfig) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*SetZoneConfig) StatementTag 

func (*SetZoneConfig) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*SetZoneConfig) StatementType 

func (*SetZoneConfig) StatementType() StatementType

StatementType implements the Statement interface.

func (*SetZoneConfig) String 

func (n *SetZoneConfig) String() string

type ShardedIndexDef 

type ShardedIndexDef struct {
	ShardBuckets Expr
}

ShardedIndexDef represents a hash sharded secondary index definition within a CREATE TABLE or CREATE INDEX statement.

func (*ShardedIndexDef) Format 

func (node *ShardedIndexDef) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type ShardedPrimaryKeyConstraint 

type ShardedPrimaryKeyConstraint struct {
	Sharded       bool
	ShardBuckets  Expr
	StorageParams StorageParams
}

ShardedPrimaryKeyConstraint represents `PRIMARY KEY .. USING HASH..` on a column.

type ShowBackup 

type ShowBackup struct {
	Path                 Expr
	InCollection         Expr
	Details              BackupDetails
	ShouldIncludeSchemas bool
	Options              KVOptions
}

ShowBackup represents a SHOW BACKUP statement.

func (*ShowBackup) Format 

func (node *ShowBackup) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ShowBackup) StatementReturnType 

func (*ShowBackup) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ShowBackup) StatementTag 

func (*ShowBackup) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ShowBackup) StatementType 

func (*ShowBackup) StatementType() StatementType

StatementType implements the Statement interface.

func (*ShowBackup) String 

func (n *ShowBackup) String() string

type ShowChangefeedJobs 

type ShowChangefeedJobs struct {
	// If non-nil, a select statement that provides the job ids to be shown.
	Jobs *Select
}

ShowChangefeedJobs represents a SHOW CHANGEFEED JOBS statement

func (*ShowChangefeedJobs) Format 

func (node *ShowChangefeedJobs) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ShowChangefeedJobs) StatementReturnType 

func (*ShowChangefeedJobs) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ShowChangefeedJobs) StatementTag 

func (*ShowChangefeedJobs) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ShowChangefeedJobs) StatementType 

func (*ShowChangefeedJobs) StatementType() StatementType

StatementType implements the Statement interface.

func (*ShowChangefeedJobs) String 

func (n *ShowChangefeedJobs) String() string

type ShowClusterSetting 

type ShowClusterSetting struct {
	Name string
}

ShowClusterSetting represents a SHOW CLUSTER SETTING statement.

func (*ShowClusterSetting) Format 

func (node *ShowClusterSetting) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ShowClusterSetting) StatementReturnType 

func (*ShowClusterSetting) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ShowClusterSetting) StatementTag 

func (*ShowClusterSetting) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ShowClusterSetting) StatementType 

func (*ShowClusterSetting) StatementType() StatementType

StatementType implements the Statement interface.

func (*ShowClusterSetting) String 

func (n *ShowClusterSetting) String() string

type ShowClusterSettingList 

type ShowClusterSettingList struct {
	// All indicates whether to include non-public settings in the output.
	All bool
}

ShowClusterSettingList represents a SHOW [ALL|PUBLIC] CLUSTER SETTINGS statement.

func (*ShowClusterSettingList) Format 

func (node *ShowClusterSettingList) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ShowClusterSettingList) StatementReturnType 

func (*ShowClusterSettingList) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ShowClusterSettingList) StatementTag 

func (*ShowClusterSettingList) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ShowClusterSettingList) StatementType 

func (*ShowClusterSettingList) StatementType() StatementType

StatementType implements the Statement interface.

func (*ShowClusterSettingList) String 

func (n *ShowClusterSettingList) String() string

type ShowColumns 

type ShowColumns struct {
	Table       *UnresolvedObjectName
	WithComment bool
}

ShowColumns represents a SHOW COLUMNS statement.

func (*ShowColumns) Format 

func (node *ShowColumns) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ShowColumns) StatementReturnType 

func (*ShowColumns) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ShowColumns) StatementTag 

func (*ShowColumns) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ShowColumns) StatementType 

func (*ShowColumns) StatementType() StatementType

StatementType implements the Statement interface.

func (*ShowColumns) String 

func (n *ShowColumns) String() string

type ShowCompletions 

type ShowCompletions struct {
	Statement *StrVal
	Offset    *NumVal
}

ShowCompletions represents a SHOW COMPLETIONS statement.

func (ShowCompletions) Format 

func (s ShowCompletions) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ShowCompletions) StatementReturnType 

func (*ShowCompletions) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ShowCompletions) StatementTag 

func (*ShowCompletions) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ShowCompletions) StatementType 

func (*ShowCompletions) StatementType() StatementType

StatementType implements the Statement interface.

func (*ShowCompletions) String 

func (n *ShowCompletions) String() string

type ShowConstraints 

type ShowConstraints struct {
	Table       *UnresolvedObjectName
	WithComment bool
}

ShowConstraints represents a SHOW CONSTRAINTS statement.

func (*ShowConstraints) Format 

func (node *ShowConstraints) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ShowConstraints) StatementReturnType 

func (*ShowConstraints) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ShowConstraints) StatementTag 

func (*ShowConstraints) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ShowConstraints) StatementType 

func (*ShowConstraints) StatementType() StatementType

StatementType implements the Statement interface.

func (*ShowConstraints) String 

func (n *ShowConstraints) String() string

type ShowCreate 

type ShowCreate struct {
	Mode ShowCreateMode
	Name *UnresolvedObjectName
}

ShowCreate represents a SHOW CREATE statement.

func (*ShowCreate) Format 

func (node *ShowCreate) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ShowCreate) StatementReturnType 

func (*ShowCreate) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ShowCreate) StatementTag 

func (*ShowCreate) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ShowCreate) StatementType 

func (*ShowCreate) StatementType() StatementType

StatementType implements the Statement interface.

func (*ShowCreate) String 

func (n *ShowCreate) String() string

type ShowCreateAllSchemas 

type ShowCreateAllSchemas struct{}

ShowCreateAllSchemas represents a SHOW CREATE ALL SCHEMAS statement.

func (*ShowCreateAllSchemas) Format 

func (node *ShowCreateAllSchemas) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ShowCreateAllSchemas) StatementReturnType 

func (*ShowCreateAllSchemas) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ShowCreateAllSchemas) StatementTag 

func (*ShowCreateAllSchemas) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ShowCreateAllSchemas) StatementType 

func (*ShowCreateAllSchemas) StatementType() StatementType

StatementType implements the Statement interface.

func (*ShowCreateAllSchemas) String 

func (node *ShowCreateAllSchemas) String() string

type ShowCreateAllTables 

type ShowCreateAllTables struct{}

ShowCreateAllTables represents a SHOW CREATE ALL TABLES statement.

func (*ShowCreateAllTables) Format 

func (node *ShowCreateAllTables) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ShowCreateAllTables) StatementReturnType 

func (*ShowCreateAllTables) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ShowCreateAllTables) StatementTag 

func (*ShowCreateAllTables) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ShowCreateAllTables) StatementType 

func (*ShowCreateAllTables) StatementType() StatementType

StatementType implements the Statement interface.

func (*ShowCreateAllTables) String 

func (node *ShowCreateAllTables) String() string

type ShowCreateAllTypes 

type ShowCreateAllTypes struct{}

ShowCreateAllTypes represents a SHOW CREATE ALL TYPES statement.

func (*ShowCreateAllTypes) Format 

func (node *ShowCreateAllTypes) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ShowCreateAllTypes) StatementReturnType 

func (*ShowCreateAllTypes) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ShowCreateAllTypes) StatementTag 

func (*ShowCreateAllTypes) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ShowCreateAllTypes) StatementType 

func (*ShowCreateAllTypes) StatementType() StatementType

StatementType implements the Statement interface.

func (*ShowCreateAllTypes) String 

func (node *ShowCreateAllTypes) String() string

type ShowCreateMode 

type ShowCreateMode int

ShowCreateMode denotes what kind of SHOW CREATE should be used 

const (
	// ShowCreateModeTable represents SHOW CREATE TABLE
	ShowCreateModeTable ShowCreateMode = iota
	// ShowCreateModeView represents SHOW CREATE VIEW
	ShowCreateModeView
	// ShowCreateModeSequence represents SHOW CREATE SEQUENCE
	ShowCreateModeSequence
	// ShowCreateModeDatabase represents SHOW CREATE DATABASE
	ShowCreateModeDatabase
)

type ShowCreateSchedules 

type ShowCreateSchedules struct {
	ScheduleID Expr
}

ShowCreateSchedules represents a SHOW CREATE SCHEDULE statement.

func (*ShowCreateSchedules) Format 

func (node *ShowCreateSchedules) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ShowCreateSchedules) StatementReturnType 

func (*ShowCreateSchedules) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ShowCreateSchedules) StatementTag 

func (*ShowCreateSchedules) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ShowCreateSchedules) StatementType 

func (*ShowCreateSchedules) StatementType() StatementType

StatementType implements the Statement interface.

func (*ShowCreateSchedules) String 

func (n *ShowCreateSchedules) String() string

type ShowDatabaseIndexes 

type ShowDatabaseIndexes struct {
	Database    Name
	WithComment bool
}

ShowDatabaseIndexes represents a SHOW INDEXES FROM DATABASE statement.

func (*ShowDatabaseIndexes) Format 

func (node *ShowDatabaseIndexes) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ShowDatabaseIndexes) StatementReturnType 

func (*ShowDatabaseIndexes) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ShowDatabaseIndexes) StatementTag 

func (*ShowDatabaseIndexes) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ShowDatabaseIndexes) StatementType 

func (*ShowDatabaseIndexes) StatementType() StatementType

StatementType implements the Statement interface.

func (*ShowDatabaseIndexes) String 

func (n *ShowDatabaseIndexes) String() string

type ShowDatabases 

type ShowDatabases struct {
	WithComment bool
}

ShowDatabases represents a SHOW DATABASES statement.

func (*ShowDatabases) Format 

func (node *ShowDatabases) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ShowDatabases) StatementReturnType 

func (*ShowDatabases) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ShowDatabases) StatementTag 

func (*ShowDatabases) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ShowDatabases) StatementType 

func (*ShowDatabases) StatementType() StatementType

StatementType implements the Statement interface.

func (*ShowDatabases) String 

func (n *ShowDatabases) String() string

type ShowDefaultPrivileges 

type ShowDefaultPrivileges struct {
	Roles       RoleSpecList
	ForAllRoles bool
}

ShowDefaultPrivileges represents a SHOW DEFAULT PRIVILEGES statement.

func (*ShowDefaultPrivileges) Format 

func (n *ShowDefaultPrivileges) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ShowDefaultPrivileges) StatementReturnType 

func (*ShowDefaultPrivileges) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ShowDefaultPrivileges) StatementTag 

func (*ShowDefaultPrivileges) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ShowDefaultPrivileges) StatementType 

func (*ShowDefaultPrivileges) StatementType() StatementType

StatementType implements the Statement interface.

func (*ShowDefaultPrivileges) String 

func (n *ShowDefaultPrivileges) String() string

type ShowEnums 

type ShowEnums struct {
	ObjectNamePrefix
}

ShowEnums represents a SHOW ENUMS statement.

func (*ShowEnums) Format 

func (node *ShowEnums) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ShowEnums) StatementReturnType 

func (*ShowEnums) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ShowEnums) StatementTag 

func (*ShowEnums) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ShowEnums) StatementType 

func (*ShowEnums) StatementType() StatementType

StatementType implements the Statement interface.

func (*ShowEnums) String 

func (n *ShowEnums) String() string

type ShowFingerprints 

type ShowFingerprints struct {
	Table *UnresolvedObjectName
}

ShowFingerprints represents a SHOW EXPERIMENTAL_FINGERPRINTS statement.

func (*ShowFingerprints) Format 

func (node *ShowFingerprints) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ShowFingerprints) StatementReturnType 

func (*ShowFingerprints) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ShowFingerprints) StatementTag 

func (*ShowFingerprints) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ShowFingerprints) StatementType 

func (*ShowFingerprints) StatementType() StatementType

StatementType implements the Statement interface.

func (*ShowFingerprints) String 

func (n *ShowFingerprints) String() string

type ShowFullTableScans 

type ShowFullTableScans struct {
}

ShowFullTableScans represents a SHOW FULL TABLE SCANS statement.

func (*ShowFullTableScans) Format 

func (node *ShowFullTableScans) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ShowFullTableScans) StatementReturnType 

func (*ShowFullTableScans) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ShowFullTableScans) StatementTag 

func (*ShowFullTableScans) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ShowFullTableScans) StatementType 

func (*ShowFullTableScans) StatementType() StatementType

StatementType implements the Statement interface.

func (*ShowFullTableScans) String 

func (n *ShowFullTableScans) String() string

type ShowGrants 

type ShowGrants struct {
	Targets  *TargetList
	Grantees RoleSpecList
}

ShowGrants represents a SHOW GRANTS statement. TargetList is defined in grant.go.

func (*ShowGrants) Format 

func (node *ShowGrants) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ShowGrants) StatementReturnType 

func (*ShowGrants) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ShowGrants) StatementTag 

func (*ShowGrants) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ShowGrants) StatementType 

func (*ShowGrants) StatementType() StatementType

StatementType implements the Statement interface.

func (*ShowGrants) String 

func (n *ShowGrants) String() string

type ShowHistogram 

type ShowHistogram struct {
	HistogramID int64
}

ShowHistogram represents a SHOW HISTOGRAM statement.

func (*ShowHistogram) Format 

func (node *ShowHistogram) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ShowHistogram) StatementReturnType 

func (*ShowHistogram) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ShowHistogram) StatementTag 

func (*ShowHistogram) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ShowHistogram) StatementType 

func (*ShowHistogram) StatementType() StatementType

StatementType implements the Statement interface.

func (*ShowHistogram) String 

func (n *ShowHistogram) String() string

type ShowIndexes 

type ShowIndexes struct {
	Table       *UnresolvedObjectName
	WithComment bool
}

ShowIndexes represents a SHOW INDEX statement.

func (*ShowIndexes) Format 

func (node *ShowIndexes) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ShowIndexes) StatementReturnType 

func (*ShowIndexes) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ShowIndexes) StatementTag 

func (*ShowIndexes) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ShowIndexes) StatementType 

func (*ShowIndexes) StatementType() StatementType

StatementType implements the Statement interface.

func (*ShowIndexes) String 

func (n *ShowIndexes) String() string

type ShowJobs 

type ShowJobs struct {
	// If non-nil, a select statement that provides the job ids to be shown.
	Jobs *Select

	// If Automatic is true, show only automatically-generated jobs such
	// as automatic CREATE STATISTICS jobs. If Automatic is false, show
	// only non-automatically-generated jobs.
	Automatic bool

	// Whether to block and wait for completion of all running jobs to be displayed.
	Block bool

	// If non-nil, only display jobs started by the specified
	// schedules.
	Schedules *Select
}

ShowJobs represents a SHOW JOBS statement

func (*ShowJobs) Format 

func (node *ShowJobs) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ShowJobs) StatementReturnType 

func (*ShowJobs) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ShowJobs) StatementTag 

func (*ShowJobs) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ShowJobs) StatementType 

func (*ShowJobs) StatementType() StatementType

StatementType implements the Statement interface.

func (*ShowJobs) String 

func (n *ShowJobs) String() string

type ShowLastQueryStatistics 

type ShowLastQueryStatistics struct {
	Columns NameList
}

ShowLastQueryStatistics represents a SHOW LAST QUERY STATS statement.

func (*ShowLastQueryStatistics) Format 

func (node *ShowLastQueryStatistics) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ShowLastQueryStatistics) StatementReturnType 

func (*ShowLastQueryStatistics) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ShowLastQueryStatistics) StatementTag 

func (*ShowLastQueryStatistics) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ShowLastQueryStatistics) StatementType 

func (*ShowLastQueryStatistics) StatementType() StatementType

StatementType implements the Statement interface.

func (*ShowLastQueryStatistics) String 

func (n *ShowLastQueryStatistics) String() string

type ShowPartitions 

type ShowPartitions struct {
	IsDB     bool
	Database Name

	IsIndex bool
	Index   TableIndexName

	IsTable bool
	Table   *UnresolvedObjectName
}

ShowPartitions represents a SHOW PARTITIONS statement.

func (*ShowPartitions) Format 

func (node *ShowPartitions) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ShowPartitions) StatementReturnType 

func (*ShowPartitions) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ShowPartitions) StatementTag 

func (*ShowPartitions) StatementTag() string

StatementTag returns a short string identifying the type of the statement.

func (*ShowPartitions) StatementType 

func (*ShowPartitions) StatementType() StatementType

StatementType implements the Statement interface.

func (*ShowPartitions) String 

func (n *ShowPartitions) String() string

type ShowQueries 

type ShowQueries struct {
	All     bool
	Cluster bool
}

ShowQueries represents a SHOW STATEMENTS statement.

func (*ShowQueries) Format 

func (node *ShowQueries) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ShowQueries) StatementReturnType 

func (*ShowQueries) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ShowQueries) StatementTag 

func (*ShowQueries) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ShowQueries) StatementType 

func (*ShowQueries) StatementType() StatementType

StatementType implements the Statement interface.

func (*ShowQueries) String 

func (n *ShowQueries) String() string

type ShowRangeForRow 

type ShowRangeForRow struct {
	TableOrIndex TableIndexName
	Row          Exprs
}

ShowRangeForRow represents a SHOW RANGE FOR ROW statement.

func (*ShowRangeForRow) Format 

func (node *ShowRangeForRow) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ShowRangeForRow) StatementReturnType 

func (*ShowRangeForRow) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ShowRangeForRow) StatementTag 

func (*ShowRangeForRow) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ShowRangeForRow) StatementType 

func (*ShowRangeForRow) StatementType() StatementType

StatementType implements the Statement interface.

func (*ShowRangeForRow) String 

func (n *ShowRangeForRow) String() string

type ShowRanges 

type ShowRanges struct {
	TableOrIndex TableIndexName
	DatabaseName Name
}

ShowRanges represents a SHOW RANGES statement.

func (*ShowRanges) Format 

func (node *ShowRanges) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ShowRanges) StatementReturnType 

func (*ShowRanges) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ShowRanges) StatementTag 

func (*ShowRanges) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ShowRanges) StatementType 

func (*ShowRanges) StatementType() StatementType

StatementType implements the Statement interface.

func (*ShowRanges) String 

func (n *ShowRanges) String() string

type ShowRegions 

type ShowRegions struct {
	ShowRegionsFrom ShowRegionsFrom
	DatabaseName    Name
}

ShowRegions represents a SHOW REGIONS statement

func (*ShowRegions) Format 

func (node *ShowRegions) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ShowRegions) StatementReturnType 

func (*ShowRegions) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ShowRegions) StatementTag 

func (*ShowRegions) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ShowRegions) StatementType 

func (*ShowRegions) StatementType() StatementType

StatementType implements the Statement interface.

func (*ShowRegions) String 

func (n *ShowRegions) String() string

type ShowRegionsFrom 

type ShowRegionsFrom int

ShowRegionsFrom denotes what kind of SHOW REGIONS command is being used. 

const (
	// ShowRegionsFromCluster represents SHOW REGIONS FROM CLUSTER.
	ShowRegionsFromCluster ShowRegionsFrom = iota
	// ShowRegionsFromDatabase represents SHOW REGIONS FROM DATABASE.
	ShowRegionsFromDatabase
	// ShowRegionsFromAllDatabases represents SHOW REGIONS FROM ALL DATABASES.
	ShowRegionsFromAllDatabases
	// ShowRegionsFromDefault represents SHOW REGIONS.
	ShowRegionsFromDefault
)

type ShowRoleGrants 

type ShowRoleGrants struct {
	Roles    RoleSpecList
	Grantees RoleSpecList
}

ShowRoleGrants represents a SHOW GRANTS ON ROLE statement.

func (*ShowRoleGrants) Format 

func (node *ShowRoleGrants) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ShowRoleGrants) StatementReturnType 

func (*ShowRoleGrants) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ShowRoleGrants) StatementTag 

func (*ShowRoleGrants) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ShowRoleGrants) StatementType 

func (*ShowRoleGrants) StatementType() StatementType

StatementType implements the Statement interface.

func (*ShowRoleGrants) String 

func (n *ShowRoleGrants) String() string

type ShowRoles 

type ShowRoles struct {
}

ShowRoles represents a SHOW ROLES statement.

func (*ShowRoles) Format 

func (node *ShowRoles) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ShowRoles) StatementReturnType 

func (*ShowRoles) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ShowRoles) StatementTag 

func (*ShowRoles) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ShowRoles) StatementType 

func (*ShowRoles) StatementType() StatementType

StatementType implements the Statement interface.

func (*ShowRoles) String 

func (n *ShowRoles) String() string

type ShowSavepointStatus 

type ShowSavepointStatus struct {
}

ShowSavepointStatus represents a SHOW SAVEPOINT STATUS statement.

func (*ShowSavepointStatus) Format 

func (node *ShowSavepointStatus) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ShowSavepointStatus) StatementReturnType 

func (*ShowSavepointStatus) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ShowSavepointStatus) StatementTag 

func (*ShowSavepointStatus) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ShowSavepointStatus) StatementType 

func (*ShowSavepointStatus) StatementType() StatementType

StatementType implements the Statement interface.

func (*ShowSavepointStatus) String 

func (n *ShowSavepointStatus) String() string

type ShowSchedules 

type ShowSchedules struct {
	WhichSchedules ScheduleState
	ExecutorType   ScheduledJobExecutorType
	ScheduleID     Expr
}

ShowSchedules represents a SHOW SCHEDULES statement.

func (*ShowSchedules) Format 

func (n *ShowSchedules) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ShowSchedules) StatementReturnType 

func (*ShowSchedules) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ShowSchedules) StatementTag 

func (*ShowSchedules) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ShowSchedules) StatementType 

func (*ShowSchedules) StatementType() StatementType

StatementType implements the Statement interface.

func (*ShowSchedules) String 

func (n *ShowSchedules) String() string

type ShowSchemas 

type ShowSchemas struct {
	Database Name
}

ShowSchemas represents a SHOW SCHEMAS statement.

func (*ShowSchemas) Format 

func (node *ShowSchemas) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ShowSchemas) StatementReturnType 

func (*ShowSchemas) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ShowSchemas) StatementTag 

func (*ShowSchemas) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ShowSchemas) StatementType 

func (*ShowSchemas) StatementType() StatementType

StatementType implements the Statement interface.

func (*ShowSchemas) String 

func (n *ShowSchemas) String() string

type ShowSequences 

type ShowSequences struct {
	Database Name
}

ShowSequences represents a SHOW SEQUENCES statement.

func (*ShowSequences) Format 

func (node *ShowSequences) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ShowSequences) StatementReturnType 

func (*ShowSequences) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ShowSequences) StatementTag 

func (*ShowSequences) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ShowSequences) StatementType 

func (*ShowSequences) StatementType() StatementType

StatementType implements the Statement interface.

func (*ShowSequences) String 

func (n *ShowSequences) String() string

type ShowSessions 

type ShowSessions struct {
	All     bool
	Cluster bool
}

ShowSessions represents a SHOW SESSIONS statement

func (*ShowSessions) Format 

func (node *ShowSessions) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ShowSessions) StatementReturnType 

func (*ShowSessions) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ShowSessions) StatementTag 

func (*ShowSessions) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ShowSessions) StatementType 

func (*ShowSessions) StatementType() StatementType

StatementType implements the Statement interface.

func (*ShowSessions) String 

func (n *ShowSessions) String() string

type ShowSurvivalGoal 

type ShowSurvivalGoal struct {
	DatabaseName Name
}

ShowSurvivalGoal represents a SHOW REGIONS statement

func (*ShowSurvivalGoal) Format 

func (node *ShowSurvivalGoal) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ShowSurvivalGoal) StatementReturnType 

func (*ShowSurvivalGoal) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ShowSurvivalGoal) StatementTag 

func (*ShowSurvivalGoal) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ShowSurvivalGoal) StatementType 

func (*ShowSurvivalGoal) StatementType() StatementType

StatementType implements the Statement interface.

func (*ShowSurvivalGoal) String 

func (n *ShowSurvivalGoal) String() string

type ShowSyntax 

type ShowSyntax struct {
	Statement string
}

ShowSyntax represents a SHOW SYNTAX statement. This the most lightweight thing that can be done on a statement server-side: just report the statement that was entered without any processing. Meant for use for syntax checking on clients, when the client version might differ from the server.

func (*ShowSyntax) Format 

func (node *ShowSyntax) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ShowSyntax) StatementReturnType 

func (*ShowSyntax) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ShowSyntax) StatementTag 

func (*ShowSyntax) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ShowSyntax) StatementType 

func (*ShowSyntax) StatementType() StatementType

StatementType implements the Statement interface.

func (*ShowSyntax) String 

func (n *ShowSyntax) String() string

type ShowTableStats 

type ShowTableStats struct {
	Table     *UnresolvedObjectName
	UsingJSON bool
}

ShowTableStats represents a SHOW STATISTICS FOR TABLE statement.

func (*ShowTableStats) Format 

func (node *ShowTableStats) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ShowTableStats) StatementReturnType 

func (*ShowTableStats) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ShowTableStats) StatementTag 

func (*ShowTableStats) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ShowTableStats) StatementType 

func (*ShowTableStats) StatementType() StatementType

StatementType implements the Statement interface.

func (*ShowTableStats) String 

func (n *ShowTableStats) String() string

type ShowTables 

type ShowTables struct {
	ObjectNamePrefix
	WithComment bool
}

ShowTables represents a SHOW TABLES statement.

func (*ShowTables) Format 

func (node *ShowTables) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ShowTables) StatementReturnType 

func (*ShowTables) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ShowTables) StatementTag 

func (*ShowTables) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ShowTables) StatementType 

func (*ShowTables) StatementType() StatementType

StatementType implements the Statement interface.

func (*ShowTables) String 

func (n *ShowTables) String() string

type ShowTenantClusterSetting 

type ShowTenantClusterSetting struct {
	*ShowClusterSetting
	TenantID Expr
}

ShowTenantClusterSetting represents a SHOW CLUSTER SETTING ... FOR TENANT statement.

func (*ShowTenantClusterSetting) Format 

func (node *ShowTenantClusterSetting) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ShowTenantClusterSetting) StatementReturnType 

func (*ShowTenantClusterSetting) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ShowTenantClusterSetting) StatementTag 

func (*ShowTenantClusterSetting) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ShowTenantClusterSetting) StatementType 

func (*ShowTenantClusterSetting) StatementType() StatementType

StatementType implements the Statement interface.

func (*ShowTenantClusterSetting) String 

func (n *ShowTenantClusterSetting) String() string

type ShowTenantClusterSettingList 

type ShowTenantClusterSettingList struct {
	*ShowClusterSettingList
	TenantID Expr
}

ShowTenantClusterSettingList represents a SHOW CLUSTER SETTINGS FOR TENANT statement.

func (*ShowTenantClusterSettingList) Format 

func (node *ShowTenantClusterSettingList) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ShowTenantClusterSettingList) StatementReturnType 

func (*ShowTenantClusterSettingList) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ShowTenantClusterSettingList) StatementTag 

func (*ShowTenantClusterSettingList) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ShowTenantClusterSettingList) StatementType 

func (*ShowTenantClusterSettingList) StatementType() StatementType

StatementType implements the Statement interface.

func (*ShowTenantClusterSettingList) String 

func (n *ShowTenantClusterSettingList) String() string

type ShowTraceForSession 

type ShowTraceForSession struct {
	TraceType ShowTraceType
	Compact   bool
}

ShowTraceForSession represents a SHOW TRACE FOR SESSION statement.

func (*ShowTraceForSession) Format 

func (node *ShowTraceForSession) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ShowTraceForSession) StatementReturnType 

func (*ShowTraceForSession) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ShowTraceForSession) StatementTag 

func (*ShowTraceForSession) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ShowTraceForSession) StatementType 

func (*ShowTraceForSession) StatementType() StatementType

StatementType implements the Statement interface.

func (*ShowTraceForSession) String 

func (n *ShowTraceForSession) String() string

type ShowTraceType 

type ShowTraceType string

ShowTraceType is an enum of SHOW TRACE variants. 

const (
	ShowTraceRaw     ShowTraceType = "TRACE"
	ShowTraceKV      ShowTraceType = "KV TRACE"
	ShowTraceReplica ShowTraceType = "EXPERIMENTAL_REPLICA TRACE"
)

A list of the SHOW TRACE variants.

type ShowTransactionStatus 

type ShowTransactionStatus struct {
}

ShowTransactionStatus represents a SHOW TRANSACTION STATUS statement.

func (*ShowTransactionStatus) Format 

func (node *ShowTransactionStatus) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ShowTransactionStatus) StatementReturnType 

func (*ShowTransactionStatus) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ShowTransactionStatus) StatementTag 

func (*ShowTransactionStatus) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ShowTransactionStatus) StatementType 

func (*ShowTransactionStatus) StatementType() StatementType

StatementType implements the Statement interface.

func (*ShowTransactionStatus) String 

func (n *ShowTransactionStatus) String() string

type ShowTransactions 

type ShowTransactions struct {
	All     bool
	Cluster bool
}

ShowTransactions represents a SHOW TRANSACTIONS statement

func (*ShowTransactions) Format 

func (node *ShowTransactions) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ShowTransactions) StatementReturnType 

func (*ShowTransactions) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface

func (*ShowTransactions) StatementTag 

func (*ShowTransactions) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ShowTransactions) StatementType 

func (*ShowTransactions) StatementType() StatementType

StatementType implements the Statement interface.

func (*ShowTransactions) String 

func (n *ShowTransactions) String() string

type ShowTransferState 

type ShowTransferState struct {
	TransferKey *StrVal
}

ShowTransferState represents a SHOW TRANSFER STATE statement.

func (*ShowTransferState) Format 

func (node *ShowTransferState) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ShowTransferState) StatementReturnType 

func (*ShowTransferState) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ShowTransferState) StatementTag 

func (*ShowTransferState) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ShowTransferState) StatementType 

func (*ShowTransferState) StatementType() StatementType

StatementType implements the Statement interface.

func (*ShowTransferState) String 

func (n *ShowTransferState) String() string

type ShowTypes 

type ShowTypes struct{}

ShowTypes represents a SHOW TYPES statement.

func (*ShowTypes) Format 

func (node *ShowTypes) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ShowTypes) StatementReturnType 

func (*ShowTypes) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ShowTypes) StatementTag 

func (*ShowTypes) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ShowTypes) StatementType 

func (*ShowTypes) StatementType() StatementType

StatementType implements the Statement interface.

func (*ShowTypes) String 

func (n *ShowTypes) String() string

type ShowUsers 

type ShowUsers struct {
}

ShowUsers represents a SHOW USERS statement.

func (*ShowUsers) Format 

func (node *ShowUsers) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ShowUsers) StatementReturnType 

func (*ShowUsers) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ShowUsers) StatementTag 

func (*ShowUsers) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ShowUsers) StatementType 

func (*ShowUsers) StatementType() StatementType

StatementType implements the Statement interface.

func (*ShowUsers) String 

func (n *ShowUsers) String() string

type ShowVar 

type ShowVar struct {
	Name string
}

ShowVar represents a SHOW statement.

func (*ShowVar) Format 

func (node *ShowVar) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ShowVar) StatementReturnType 

func (*ShowVar) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ShowVar) StatementTag 

func (*ShowVar) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ShowVar) StatementType 

func (*ShowVar) StatementType() StatementType

StatementType implements the Statement interface.

func (*ShowVar) String 

func (n *ShowVar) String() string

type ShowZoneConfig 

type ShowZoneConfig struct {
	ZoneSpecifier
}

ShowZoneConfig represents a SHOW ZONE CONFIGURATION statement.

func (*ShowZoneConfig) Format 

func (node *ShowZoneConfig) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ShowZoneConfig) StatementReturnType 

func (*ShowZoneConfig) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ShowZoneConfig) StatementTag 

func (*ShowZoneConfig) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ShowZoneConfig) StatementType 

func (*ShowZoneConfig) StatementType() StatementType

StatementType implements the Statement interface.

func (*ShowZoneConfig) String 

func (n *ShowZoneConfig) String() string

type SimpleVisitFn 

type SimpleVisitFn func(expr Expr) (recurse bool, newExpr Expr, err error)

SimpleVisitFn is a function that is run for every node in the VisitPre stage; see SimpleVisit.

type SpecializedVectorizedBuiltin 

type SpecializedVectorizedBuiltin int

SpecializedVectorizedBuiltin is used to map overloads to the vectorized operator that is specific to that implementation of the builtin function. 

const (
	SubstringStringIntInt SpecializedVectorizedBuiltin
)

Keep this list alphabetized so that it is easy to manage.

type Split 

type Split struct {
	TableOrIndex TableIndexName
	// Each row contains values for the columns in the PK or index (or a prefix
	// of the columns).
	Rows *Select
	// Splits can last a specified amount of time before becoming eligible for
	// automatic merging.
	ExpireExpr Expr
}

Split represents an `ALTER TABLE/INDEX .. SPLIT AT ..` statement.

func (*Split) Format 

func (node *Split) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*Split) StatementReturnType 

func (*Split) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*Split) StatementTag 

func (*Split) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*Split) StatementType 

func (*Split) StatementType() StatementType

StatementType implements the Statement interface.

func (*Split) String 

func (n *Split) String() string

type Statement 

type Statement interface {
	fmt.Stringer
	NodeFormatter

	// StatementReturnType is the return styles on the wire
	// (Ack, DDL, RowsAffected, Rows, CopyIn or Unknown)
	StatementReturnType() StatementReturnType
	// StatementType identifies whether the statement is a DDL, DML, DCL, or TCL.
	StatementType() StatementType
	// StatementTag is a short string identifying the type of statement
	// (usually a single verb). This is different than the Stringer output,
	// which is the actual statement (including args).
	// TODO(dt): Currently tags are always pg-compatible in the future it
	// might make sense to pass a tag format specifier.
	StatementTag() string
}

Statement represents a statement.

func MakeExplain 

func MakeExplain(options []string, stmt Statement) (Statement, error)

MakeExplain parses the EXPLAIN option strings and generates an Explain or ExplainAnalyze statement.

func SimpleStmtVisit 

func SimpleStmtVisit(stmt Statement, preFn SimpleVisitFn) (Statement, error)

SimpleStmtVisit is a convenience wrapper for visitors that want to visit all part of a statement, only have VisitPre code and don't return any results except an error. The given function is called in VisitPre for every node. The visitor stops as soon as an error is returned.

type StatementReturnType 

type StatementReturnType int

StatementReturnType is the enumerated type for Statement return styles on the wire. 

const (
	// Ack indicates that the statement does not have a meaningful
	// return. Examples include SET, BEGIN, COMMIT.
	Ack StatementReturnType = iota
	// DDL indicates that the statement mutates the database schema.
	//
	// Note: this is the type indicated back to the client; it is not a
	// sufficient test for schema mutation for planning purposes. There
	// are schema-modifying statements (e.g. CREATE TABLE AS) which
	// report RowsAffected to the client, not DDL.
	// Use CanModifySchema() below instead.
	DDL
	// RowsAffected indicates that the statement returns the count of
	// affected rows.
	RowsAffected
	// Rows indicates that the statement returns the affected rows after
	// the statement was applied.
	Rows
	// CopyIn indicates a COPY FROM statement.
	CopyIn
	// Unknown indicates that the statement does not have a known
	// return style at the time of parsing. This is not first in the
	// enumeration because it is more convenient to have Ack as a zero
	// value, and because the use of Unknown should be an explicit choice.
	// The primary example of this statement type is EXECUTE, where the
	// statement type depends on the statement type of the prepared statement
	// being executed.
	Unknown
)

func (StatementReturnType) String 

func (i StatementReturnType) String() string

type StatementSource 

type StatementSource struct {
	Statement Statement
}

StatementSource encapsulates one of the other statements as a data source.

func (*StatementSource) Format 

func (node *StatementSource) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*StatementSource) WalkTableExpr 

func (expr *StatementSource) WalkTableExpr(v Visitor) TableExpr

WalkTableExpr implements the TableExpr interface.

type StatementType 

type StatementType int

StatementType is the enumerated type for Statement type return 

const (
	// DDL (Data Definition Language) deals with database schemas and descriptions.
	TypeDDL StatementType = iota
	// DML (Data Manipulation Language) deals with data manipulation and it is used to
	// store, modify, retrieve, delete and update data in a database.
	TypeDML
	// DCL (Data Control Language) deals with commands such as GRANT and mostly
	// concerned with rights, permissions and other controls of the database system.
	TypeDCL
	// TCL (Transaction Control Language) deals with a transaction within a database.
	TypeTCL
)

func (StatementType) String 

func (i StatementType) String() string

type StorageParam 

type StorageParam struct {
	Key   Name
	Value Expr
}

StorageParam is a key-value parameter for table storage.

type StorageParams 

type StorageParams []StorageParam

StorageParams is a list of StorageParams.

func (*StorageParams) Format 

func (o *StorageParams) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*StorageParams) GetVal 

func (o *StorageParams) GetVal(key string) Expr

GetVal returns corresponding value if a key exists, otherwise nil is returned.

type StrVal 

type StrVal struct {
	// contains filtered or unexported fields
}

StrVal represents a constant string value.

func NewBytesStrVal 

func NewBytesStrVal(s string) *StrVal

NewBytesStrVal constructs a StrVal instance suitable as byte array. This is used during parsing when interpreting a token of type BCONST, i.e. using the b'...' or x'...' syntax.

func NewStrVal 

func NewStrVal(s string) *StrVal

NewStrVal constructs a StrVal instance. This is used during parsing when interpreting a token of type SCONST, i.e. *not* using the b'...' or x'...' syntax.

func (*StrVal) AvailableTypes 

func (expr *StrVal) AvailableTypes() []*types.T

AvailableTypes implements the Constant interface.

To fully take advantage of literal type inference, this method would determine exactly which types are available for a given string. This would entail attempting to parse the literal string as a date, a timestamp, an interval, etc. and having more fine-grained results than StrValAvailAllParsable. However, this is not feasible in practice because of the associated parsing overhead.

Conservative approaches like checking the string's length have been investigated to reduce ambiguity and improve type inference in some cases. When doing so, the length of the string literal was compared against all valid date and timestamp formats to quickly gain limited insight into whether parsing the string as the respective datum types could succeed. The hope was to eliminate impossibilities and constrain the returned type sets as much as possible. Unfortunately, two issues were found with this approach:

  • date and timestamp formats do not always imply a fixed-length valid input. For instance, timestamp formats that take fractional seconds can successfully parse inputs of varied length.
  • the set of date and timestamp formats are not disjoint, which means that ambiguity can not be eliminated when inferring the type of string literals that use these shared formats.

While these limitations still permitted improved type inference in many cases, they resulted in behavior that was ultimately incomplete, resulted in unpredictable levels of inference, and occasionally failed to eliminate ambiguity. Further heuristics could have been applied to improve the accuracy of the inference, like checking that all or some characters were digits, but it would not have circumvented the fundamental issues here. Fully parsing the literal into each type would be the only way to concretely avoid the issue of unpredictable inference behavior.

func (*StrVal) DesirableTypes 

func (expr *StrVal) DesirableTypes() []*types.T

DesirableTypes implements the Constant interface.

func (*StrVal) Format 

func (expr *StrVal) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*StrVal) RawString 

func (expr *StrVal) RawString() string

RawString retrieves the underlying string of the StrVal.

func (*StrVal) ResolveAsType 

func (expr *StrVal) ResolveAsType(
	ctx context.Context, semaCtx *SemaContext, typ *types.T,
) (TypedExpr, error)

ResolveAsType implements the Constant interface.

func (*StrVal) String 

func (node *StrVal) String() string

func (*StrVal) TypeCheck 

func (expr *StrVal) TypeCheck(
	ctx context.Context, semaCtx *SemaContext, desired *types.T,
) (TypedExpr, error)

TypeCheck implements the Expr interface.

func (*StrVal) Walk 

func (expr *StrVal) Walk(_ Visitor) Expr

Walk implements the Expr interface.

type StreamIngestion 

type StreamIngestion struct {
	Targets TargetList
	From    StringOrPlaceholderOptList
	AsOf    AsOfClause
}

StreamIngestion represents a RESTORE FROM REPLICATION STREAM statement.

func (*StreamIngestion) Format 

func (node *StreamIngestion) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*StreamIngestion) StatementReturnType 

func (*StreamIngestion) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*StreamIngestion) StatementTag 

func (*StreamIngestion) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*StreamIngestion) StatementType 

func (*StreamIngestion) StatementType() StatementType

StatementType implements the Statement interface.

func (*StreamIngestion) String 

func (n *StreamIngestion) String() string

type StringOrPlaceholderOptList 

type StringOrPlaceholderOptList []Expr

StringOrPlaceholderOptList is a list of strings or placeholders.

func (*StringOrPlaceholderOptList) Format 

func (node *StringOrPlaceholderOptList) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type Subquery 

type Subquery struct {
	Select SelectStatement
	Exists bool

	// Idx is a query-unique index for the subquery.
	// Subqueries are 1-indexed to ensure that the default
	// value 0 can be used to detect uninitialized subqueries.
	Idx int
	// contains filtered or unexported fields
}

Subquery represents a subquery.

func (*Subquery) Eval 

func (expr *Subquery) Eval(ctx *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*Subquery) Format 

func (node *Subquery) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (Subquery) ResolvedType 

func (ta Subquery) ResolvedType() *types.T

func (*Subquery) SetType 

func (node *Subquery) SetType(t *types.T)

SetType forces the type annotation on the Subquery node.

func (*Subquery) String 

func (node *Subquery) String() string

func (*Subquery) SubqueryExpr 

func (*Subquery) SubqueryExpr()

SubqueryExpr implements the SubqueryExpr interface.

func (*Subquery) TypeCheck 

func (expr *Subquery) TypeCheck(_ context.Context, sc *SemaContext, _ *types.T) (TypedExpr, error)

TypeCheck implements the Expr interface.

func (*Subquery) Variable 

func (*Subquery) Variable()

Variable implements the VariableExpr interface.

func (*Subquery) Walk 

func (expr *Subquery) Walk(v Visitor) Expr

Walk implements the Expr interface.

func (*Subquery) WalkTableExpr 

func (expr *Subquery) WalkTableExpr(v Visitor) TableExpr

WalkTableExpr implements the TableExpr interface.

type SubqueryExpr 

type SubqueryExpr interface {
	Expr
	SubqueryExpr()
}

SubqueryExpr is an interface used to identify an expression as a subquery. It is implemented by both tree.Subquery and optbuilder.subquery, and is used in TypeCheck.

type SurvivalGoal 

type SurvivalGoal uint32

SurvivalGoal represents the desired survivability level for a given database. 

const (
	// SurvivalGoalDefault indicates default survive behavior.
	// This will get translated to the appropriate value when persisted.
	SurvivalGoalDefault SurvivalGoal = iota
	// SurvivalGoalRegionFailure indicates a database being able to withstand
	// an entire region failure.
	SurvivalGoalRegionFailure
	// SurvivalGoalZoneFailure indicates a database being able to
	// withstand a failure of an availibility zone.
	SurvivalGoalZoneFailure
)

func (*SurvivalGoal) Format 

func (node *SurvivalGoal) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*SurvivalGoal) TelemetryName 

func (node *SurvivalGoal) TelemetryName() string

TelemetryName returns a representation of SurvivalGoal suitable for telemetry

type TableDef 

type TableDef interface {
	NodeFormatter
	// contains filtered or unexported methods
}

TableDef represents a column, index or constraint definition within a CREATE TABLE statement.

type TableDefs 

type TableDefs []TableDef

TableDefs represents a list of table definitions.

func (*TableDefs) Format 

func (node *TableDefs) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type TableExpr 

type TableExpr interface {
	NodeFormatter

	WalkTableExpr(Visitor) TableExpr
	// contains filtered or unexported methods
}

TableExpr represents a table expression.

func StripTableParens 

func StripTableParens(expr TableExpr) TableExpr

StripTableParens strips any parentheses surrounding a selection clause.

type TableExprs 

type TableExprs []TableExpr

TableExprs represents a list of table expressions.

func (*TableExprs) Format 

func (node *TableExprs) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type TableIndexName 

type TableIndexName struct {
	Table TableName
	Index UnrestrictedName
}

TableIndexName refers to a table index. There are a few cases:

  • if both the table name and the index name are set, refers to a specific index in a specific table.

  • if the table name is set and index name is empty, refers to the primary index of that table.

  • if the table name is empty and the index name is set, refers to an index of that name among all tables within a catalog/schema; if there is a duplicate name, that will result in an error. Note that it is possible to specify the schema or catalog without specifying a table name; in this case, Table.ObjectNamePrefix has the fields set but Table.ObjectName is empty.

func (*TableIndexName) Format 

func (n *TableIndexName) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*TableIndexName) String 

func (n *TableIndexName) String() string

type TableIndexNames 

type TableIndexNames []*TableIndexName

TableIndexNames is a list of indexes.

func (*TableIndexNames) Format 

func (n *TableIndexNames) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type TableName 

type TableName struct {
	// contains filtered or unexported fields
}

TableName corresponds to the name of a table in a FROM clause, INSERT or UPDATE statement, etc.

This is constructed for incoming SQL queries from an UnresolvedObjectName,

Internal uses of this struct should not construct instances of TableName directly, and instead use the NewTableName / MakeTableName functions underneath.

TableName is a public type for objName. It exposes the fields and can be default-constructed but cannot be instantiated with a non-default value; this encourages the use of the constructors below.

func MakeTableNameFromPrefix 

func MakeTableNameFromPrefix(prefix ObjectNamePrefix, object Name) TableName

MakeTableNameFromPrefix creates a table name from an unqualified name and a resolved prefix.

func MakeTableNameWithSchema 

func MakeTableNameWithSchema(db, schema, tbl Name) TableName

MakeTableNameWithSchema creates a new fully qualified table name.

func MakeUnqualifiedTableName 

func MakeUnqualifiedTableName(tbl Name) TableName

MakeUnqualifiedTableName creates a new base table name.

func NewTableNameWithSchema 

func NewTableNameWithSchema(db, sc, tbl Name) *TableName

NewTableNameWithSchema creates a new table name qualified with a given catalog and schema.

func NewUnqualifiedTableName 

func NewUnqualifiedTableName(tbl Name) *TableName

NewUnqualifiedTableName creates a new base table name.

func (*TableName) Equals 

func (t *TableName) Equals(other *TableName) bool

Equals returns true if the two table names are identical (including the ExplicitSchema/ExplicitCatalog flags).

func (*TableName) FQString 

func (t *TableName) FQString() string

FQString renders the table name in full, not omitting the prefix schema and catalog names. Suitable for logging, etc.

func (*TableName) Format 

func (t *TableName) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*TableName) NormalizeTablePattern 

func (t *TableName) NormalizeTablePattern() (TablePattern, error)

NormalizeTablePattern implements the TablePattern interface.

func (*TableName) Object 

func (o *TableName) Object() string

func (*TableName) String 

func (t *TableName) String() string

func (*TableName) Table 

func (t *TableName) Table() string

Table retrieves the unqualified table name.

func (*TableName) ToUnresolvedObjectName 

func (o *TableName) ToUnresolvedObjectName() *UnresolvedObjectName

ToUnresolvedObjectName converts the type name to an unresolved object name. Schema and catalog are included if indicated by the ExplicitSchema and ExplicitCatalog flags.

func (*TableName) WalkTableExpr 

func (expr *TableName) WalkTableExpr(_ Visitor) TableExpr

WalkTableExpr implements the TableExpr interface.

type TableNames 

type TableNames []TableName

TableNames represents a comma separated list (see the Format method) of table names.

func (*TableNames) Format 

func (ts *TableNames) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*TableNames) String 

func (ts *TableNames) String() string

type TablePattern 

type TablePattern interface {
	fmt.Stringer
	NodeFormatter

	// NormalizeTablePattern() guarantees to return a pattern that is
	// not an UnresolvedName. This converts the UnresolvedName to an
	// AllTablesSelector or TableName as necessary.
	NormalizeTablePattern() (TablePattern, error)
}

TablePattern is the common interface to UnresolvedName, TableName and AllTablesSelector.

type TablePatterns 

type TablePatterns []TablePattern

TablePatterns implement a comma-separated list of table patterns. Used by e.g. the GRANT statement.

func (*TablePatterns) Format 

func (tt *TablePatterns) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type TableRef 

type TableRef struct {
	// TableID is the descriptor ID of the requested table.
	TableID int64

	// ColumnIDs is the list of column IDs requested in the table.
	// Note that a nil array here means "unspecified" (all columns)
	// whereas an array of length 0 means "zero columns".
	// Lists of zero columns are not supported and will throw an error.
	Columns []ColumnID

	// As determines the names that can be used in the surrounding query
	// to refer to this source.
	As AliasClause
}

TableRef represents a numeric table reference. (Syntax !NNN in SQL.)

func (*TableRef) Format 

func (n *TableRef) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*TableRef) String 

func (n *TableRef) String() string

func (*TableRef) WalkTableExpr 

func (expr *TableRef) WalkTableExpr(_ Visitor) TableExpr

WalkTableExpr implements the TableExpr interface.

type TargetList 

type TargetList struct {
	Databases NameList
	Schemas   ObjectNamePrefixList
	Tables    TablePatterns
	TenantID  TenantID
	Types     []*UnresolvedObjectName
	// If the target is for all tables in a set of schemas.
	AllTablesInSchema bool
	// Whether the target is only system users and roles_members table
	SystemUser bool

	// ForRoles and Roles are used internally in the parser and not used
	// in the AST. Therefore they do not participate in pretty-printing,
	// etc.
	ForRoles bool
	Roles    RoleSpecList
}

TargetList represents a list of targets. Only one field may be non-nil.

func (*TargetList) Format 

func (tl *TargetList) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type TenantID 

type TenantID struct {

	// Specified is set to true when the TENANT clause was specified in
	// the backup target input syntax. We need this, instead of relying
	// on roachpb.TenantID.IsSet(), because we need a special marker for
	// the case when the value was anonymized. In other places, the
	// value used for anonymized integer literals is 0, but we can't use
	// 0 for TenantID as this is refused during parsing, nor can we use
	// any other value since all non-zero integers are valid tenant IDs.
	//
	// TODO(knz): None of this complexity would be needed if the tenant
	// ID was specified using an Expr here. This can be removed once the
	// backup target syntax accepts expressions for tenant targets.
	Specified bool
}

TenantID represents a tenant ID that can be pretty-printed.

func (*TenantID) Format 

func (t *TenantID) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type TenantOperator 

type TenantOperator interface {
	// CreateTenant attempts to install a new tenant in the system. It returns
	// an error if the tenant already exists. The new tenant is created at the
	// current active version of the cluster performing the create.
	CreateTenant(ctx context.Context, tenantID uint64) error

	// DestroyTenant attempts to uninstall an existing tenant from the system.
	// It returns an error if the tenant does not exist. If synchronous is true
	// the gc job will not wait for a GC ttl.
	DestroyTenant(ctx context.Context, tenantID uint64, synchronous bool) error

	// GCTenant attempts to garbage collect a DROP tenant from the system. Upon
	// success it also removes the tenant record.
	// It returns an error if the tenant does not exist.
	GCTenant(ctx context.Context, tenantID uint64) error

	// UpdateTenantResourceLimits reconfigures the tenant resource limits.
	// See multitenant.TenantUsageServer for more details on the arguments.
	UpdateTenantResourceLimits(
		ctx context.Context,
		tenantID uint64,
		availableRU float64,
		refillRate float64,
		maxBurstRU float64,
		asOf time.Time,
		asOfConsumedRequestUnits float64,
	) error
}

TenantOperator is capable of interacting with tenant state, allowing SQL builtin functions to create, configure, and destroy tenants. The methods will return errors when run by any tenant other than the system tenant.

type TestingMapTypeResolver 

type TestingMapTypeResolver struct {
	// contains filtered or unexported fields
}

TestingMapTypeResolver is a fake type resolver for testing purposes.

func (*TestingMapTypeResolver) ResolveType 

func (dtr *TestingMapTypeResolver) ResolveType(
	_ context.Context, name *UnresolvedObjectName,
) (*types.T, error)

ResolveType implements the TypeReferenceResolver interface.

func (*TestingMapTypeResolver) ResolveTypeByOID 

func (dtr *TestingMapTypeResolver) ResolveTypeByOID(context.Context, oid.Oid) (*types.T, error)

ResolveTypeByOID implements the TypeReferenceResolver interface.

type TransactionModes 

type TransactionModes struct {
	Isolation     IsolationLevel
	UserPriority  UserPriority
	ReadWriteMode ReadWriteMode
	AsOf          AsOfClause
	Deferrable    DeferrableMode
}

TransactionModes holds the transaction modes for a transaction.

func (*TransactionModes) Format 

func (node *TransactionModes) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*TransactionModes) Merge 

func (node *TransactionModes) Merge(other TransactionModes) error

Merge groups two sets of transaction modes together. Used in the parser.

type Truncate 

type Truncate struct {
	Tables       TableNames
	DropBehavior DropBehavior
}

Truncate represents a TRUNCATE statement.

func (*Truncate) Format 

func (node *Truncate) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*Truncate) StatementReturnType 

func (*Truncate) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*Truncate) StatementTag 

func (*Truncate) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*Truncate) StatementType 

func (*Truncate) StatementType() StatementType

StatementType implements the Statement interface.

func (*Truncate) String 

func (n *Truncate) String() string

type Tuple 

type Tuple struct {
	Exprs  Exprs
	Labels []string

	// Row indicates whether `ROW` was used in the input syntax. This is
	// used solely to generate column names automatically, see
	// col_name.go.
	Row bool
	// contains filtered or unexported fields
}

Tuple represents a parenthesized list of expressions.

func NewTypedTuple 

func NewTypedTuple(typ *types.T, typedExprs Exprs) *Tuple

NewTypedTuple returns a new Tuple that is verified to be well-typed.

func (*Tuple) Eval 

func (t *Tuple) Eval(ctx *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*Tuple) Format 

func (node *Tuple) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*Tuple) ResolvedType 

func (node *Tuple) ResolvedType() *types.T

ResolvedType implements the TypedExpr interface.

func (*Tuple) String 

func (node *Tuple) String() string

func (*Tuple) TypeCheck 

func (expr *Tuple) TypeCheck(
	ctx context.Context, semaCtx *SemaContext, desired *types.T,
) (TypedExpr, error)

TypeCheck implements the Expr interface.

func (*Tuple) Walk 

func (expr *Tuple) Walk(v Visitor) Expr

Walk implements the Expr interface.

type TupleStar 

type TupleStar struct {
	Expr Expr
}

TupleStar represents (E).* expressions. It is meant to evaporate during star expansion.

func (*TupleStar) Eval 

func (expr *TupleStar) Eval(ctx *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*TupleStar) Format 

func (node *TupleStar) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*TupleStar) NormalizeVarName 

func (node *TupleStar) NormalizeVarName() (VarName, error)

NormalizeVarName implements the VarName interface.

func (*TupleStar) ResolvedType 

func (expr *TupleStar) ResolvedType() *types.T

ResolvedType implements the TypedExpr interface.

func (*TupleStar) String 

func (node *TupleStar) String() string

func (*TupleStar) TypeCheck 

func (expr *TupleStar) TypeCheck(
	ctx context.Context, semaCtx *SemaContext, desired *types.T,
) (TypedExpr, error)

TypeCheck implements the Expr interface.

func (*TupleStar) Walk 

func (expr *TupleStar) Walk(v Visitor) Expr

Walk implements the Expr interface.

type TwoArgFn 

type TwoArgFn func(*EvalContext, Datum, Datum) (Datum, error)

TwoArgFn is a function that operates on two Datum arguments.

func FindEqualComparisonFunction 

func FindEqualComparisonFunction(leftType, rightType *types.T) (TwoArgFn, bool)

FindEqualComparisonFunction looks up an overload of the "=" operator for a given pair of input operand types.

type TypeCollectorVisitor 

type TypeCollectorVisitor struct {
	OIDs map[oid.Oid]struct{}
}

TypeCollectorVisitor is an expression visitor that collects all explicit OID type references in an expression.

func (*TypeCollectorVisitor) VisitPost 

func (v *TypeCollectorVisitor) VisitPost(e Expr) Expr

VisitPost implements the Visitor interface.

func (*TypeCollectorVisitor) VisitPre 

func (v *TypeCollectorVisitor) VisitPre(expr Expr) (bool, Expr)

VisitPre implements the Visitor interface.

type TypeList 

type TypeList interface {
	// Match checks if all types in the TypeList match the corresponding elements in types.
	Match(types []*types.T) bool
	// MatchAt checks if the parameter type at index i of the TypeList matches type typ.
	// In all implementations, types.Null will match with each parameter type, allowing
	// NULL values to be used as arguments.
	MatchAt(typ *types.T, i int) bool
	// MatchLen checks that the TypeList can support l parameters.
	MatchLen(l int) bool
	// GetAt returns the type at the given index in the TypeList, or nil if the TypeList
	// cannot have a parameter at index i.
	GetAt(i int) *types.T
	// Length returns the number of types in the list
	Length() int
	// Types returns a realized copy of the list. variadic lists return a list of size one.
	Types() []*types.T
	// String returns a human readable signature
	String() string
}

TypeList is a list of types representing a function parameter list.

type TypeName 

type TypeName struct {
	// contains filtered or unexported fields
}

TypeName corresponds to the name of a type in a CREATE TYPE statement, in an expression, or column type etc.

Users of this struct should not construct it directly, and instead use the constructors below.

func MakeQualifiedTypeName 

func MakeQualifiedTypeName(db, schema, typ string) TypeName

MakeQualifiedTypeName creates a fully qualified type name.

func MakeSchemaQualifiedTypeName 

func MakeSchemaQualifiedTypeName(schema, typ string) TypeName

MakeSchemaQualifiedTypeName returns a new type name.

func MakeTypeNameWithPrefix 

func MakeTypeNameWithPrefix(prefix ObjectNamePrefix, typ string) TypeName

MakeTypeNameWithPrefix creates a type name with the provided prefix.

func MakeUnqualifiedTypeName 

func MakeUnqualifiedTypeName(typ string) TypeName

MakeUnqualifiedTypeName returns a new type name.

func NewQualifiedTypeName 

func NewQualifiedTypeName(db, schema, typ string) *TypeName

NewQualifiedTypeName returns a fully qualified type name.

func NewUnqualifiedTypeName 

func NewUnqualifiedTypeName(typ string) *TypeName

NewUnqualifiedTypeName returns a new base type name.

func (*TypeName) FQString 

func (t *TypeName) FQString() string

FQString renders the type name in full, not omitting the prefix schema and catalog names. Suitable for logging, etc.

func (*TypeName) Format 

func (t *TypeName) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*TypeName) Object 

func (o *TypeName) Object() string

func (*TypeName) SQLString 

func (t *TypeName) SQLString() string

SQLString implements the ResolvableTypeReference interface.

func (*TypeName) String 

func (t *TypeName) String() string

String implements the Stringer interface.

func (*TypeName) ToUnresolvedObjectName 

func (o *TypeName) ToUnresolvedObjectName() *UnresolvedObjectName

ToUnresolvedObjectName converts the type name to an unresolved object name. Schema and catalog are included if indicated by the ExplicitSchema and ExplicitCatalog flags.

func (*TypeName) Type 

func (t *TypeName) Type() string

Type returns the unqualified name of this TypeName.

type TypeReferenceResolver 

type TypeReferenceResolver interface {
	ResolveType(ctx context.Context, name *UnresolvedObjectName) (*types.T, error)
	ResolveTypeByOID(ctx context.Context, oid oid.Oid) (*types.T, error)
}

TypeReferenceResolver is the interface that will provide the ability to actually look up type metadata and transform references into *types.T's. Implementers of TypeReferenceResolver should also implement descpb.TypeDescriptorResolver is sqlbase.TypeDescriptorInterface is the underlying representation of a user defined type.

func MakeTestingMapTypeResolver 

func MakeTestingMapTypeResolver(typeMap map[string]*types.T) TypeReferenceResolver

MakeTestingMapTypeResolver creates a TestingMapTypeResolver from a map.

type TypeResolver 

type TypeResolver interface {
	TypeReferenceResolver

	// ResolveOIDFromString looks up the populated value of the OID with the
	// desired resultType which matches the provided name.
	//
	// The return value is a fresh DOid of the input oid.Oid with name and OID
	// set to the result of the query. If there was not exactly one result to the
	// query, an error will be returned.
	ResolveOIDFromString(
		ctx context.Context, resultType *types.T, toResolve *DString,
	) (*DOid, error)

	// ResolveOIDFromOID looks up the populated value of the oid with the
	// desired resultType which matches the provided oid.
	//
	// The return value is a fresh DOid of the input oid.Oid with name and OID
	// set to the result of the query. If there was not exactly one result to the
	// query, an error will be returned.
	ResolveOIDFromOID(
		ctx context.Context, resultType *types.T, toResolve *DOid,
	) (*DOid, error)
}

TypeResolver is an interface for resolving types and type OIDs.

type TypedDummy 

type TypedDummy struct {
	Typ *types.T
}

TypedDummy is a dummy expression that represents a dummy value with a specified type. It can be used in situations where TypedExprs of a particular type are required for semantic analysis.

func (*TypedDummy) Eval 

func (node *TypedDummy) Eval(*EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*TypedDummy) Format 

func (node *TypedDummy) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*TypedDummy) ResolvedType 

func (node *TypedDummy) ResolvedType() *types.T

ResolvedType implements the TypedExpr interface.

func (*TypedDummy) String 

func (node *TypedDummy) String() string

func (*TypedDummy) TypeCheck 

func (node *TypedDummy) TypeCheck(context.Context, *SemaContext, *types.T) (TypedExpr, error)

TypeCheck implements the Expr interface.

func (*TypedDummy) Walk 

func (node *TypedDummy) Walk(Visitor) Expr

Walk implements the Expr interface.

type TypedExpr 

type TypedExpr interface {
	Expr
	// Eval evaluates an SQL expression. Expression evaluation is a
	// mostly straightforward walk over the parse tree. The only
	// significant complexity is the handling of types and implicit
	// conversions. See binOps and cmpOps for more details. Note that
	// expression evaluation returns an error if certain node types are
	// encountered: Placeholder, VarName (and related UnqualifiedStar,
	// UnresolvedName and AllColumnsSelector) or Subquery. These nodes
	// should be replaced prior to expression evaluation by an
	// appropriate WalkExpr. For example, Placeholder should be replaced
	// by the argument passed from the client.
	Eval(*EvalContext) (Datum, error)
	// ResolvedType provides the type of the TypedExpr, which is the type of Datum
	// that the TypedExpr will return when evaluated.
	ResolvedType() *types.T
}

TypedExpr represents a well-typed expression.

func ReType 

func ReType(expr TypedExpr, wantedType *types.T) (_ TypedExpr, ok bool)

ReType ensures that the given expression evaluates to the requested type, wrapping the expression in a cast if necessary. Returns ok=false if a cast cannot wrap the expression because no valid cast from the expression's type to the wanted type exists.

func TypeCheck 

func TypeCheck(
	ctx context.Context, expr Expr, semaCtx *SemaContext, desired *types.T,
) (TypedExpr, error)

TypeCheck performs type checking on the provided expression tree, returning the new typed expression tree, which additionally permits evaluation and type introspection globally and on each sub-tree.

While doing so, it will fold numeric constants and bind placeholder names to their inferred types in the provided context. The optional desired parameter can be used to hint the desired type for the root of the resulting typed expression tree. Like with Expr.TypeCheck, it is not valid to provide a nil desired type. Instead, call it with the wildcard type types.Any if no specific type is desired.

func TypeCheckAndRequire 

func TypeCheckAndRequire(
	ctx context.Context, expr Expr, semaCtx *SemaContext, required *types.T, op string,
) (TypedExpr, error)

TypeCheckAndRequire performs type checking on the provided expression tree in an identical manner to TypeCheck. It then asserts that the resulting TypedExpr has the provided return type, returning both the typed expression and an error if it does not.

func TypeCheckSameTypedExprs 

func TypeCheckSameTypedExprs(
	ctx context.Context, semaCtx *SemaContext, desired *types.T, exprs ...Expr,
) ([]TypedExpr, *types.T, error)

TypeCheckSameTypedExprs type checks a list of expressions, asserting that all resolved TypeExprs have the same type. An optional desired type can be provided, which will hint that type which the expressions should resolve to, if possible.

type TypedExprs 

type TypedExprs []TypedExpr

TypedExprs represents a list of well-typed value expressions. It's not a valid expression because it's not parenthesized.

func (*TypedExprs) String 

func (node *TypedExprs) String() string

type UnaryExpr 

type UnaryExpr struct {
	Operator UnaryOperator
	Expr     Expr
	// contains filtered or unexported fields
}

UnaryExpr represents a unary value expression.

func NewTypedUnaryExpr 

func NewTypedUnaryExpr(op UnaryOperator, expr TypedExpr, typ *types.T) *UnaryExpr

NewTypedUnaryExpr returns a new UnaryExpr that is well-typed.

func (*UnaryExpr) Eval 

func (expr *UnaryExpr) Eval(ctx *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*UnaryExpr) Format 

func (node *UnaryExpr) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (UnaryExpr) ResolvedType 

func (ta UnaryExpr) ResolvedType() *types.T

func (*UnaryExpr) String 

func (node *UnaryExpr) String() string

func (*UnaryExpr) TypeCheck 

func (expr *UnaryExpr) TypeCheck(
	ctx context.Context, semaCtx *SemaContext, desired *types.T,
) (TypedExpr, error)

TypeCheck implements the Expr interface.

func (*UnaryExpr) TypedInnerExpr 

func (node *UnaryExpr) TypedInnerExpr() TypedExpr

TypedInnerExpr returns the UnaryExpr's inner expression as a TypedExpr.

func (*UnaryExpr) Walk 

func (expr *UnaryExpr) Walk(v Visitor) Expr

Walk implements the Expr interface.

type UnaryOp 

type UnaryOp struct {
	Typ        *types.T
	ReturnType *types.T
	Fn         func(*EvalContext, Datum) (Datum, error)
	Volatility Volatility
	// contains filtered or unexported fields
}

UnaryOp is a unary operator.

type UnaryOperator 

type UnaryOperator struct {
	Symbol UnaryOperatorSymbol
	// IsExplicitOperator is true if OPERATOR(symbol) is used.
	IsExplicitOperator bool
}

UnaryOperator represents a unary operator used in a UnaryExpr.

func MakeUnaryOperator 

func MakeUnaryOperator(symbol UnaryOperatorSymbol) UnaryOperator

MakeUnaryOperator creates a UnaryOperator given a symbol.

func (UnaryOperator) Operator 

func (UnaryOperator) Operator()

Operator implements tree.Operator.

func (UnaryOperator) String 

func (o UnaryOperator) String() string

type UnaryOperatorSymbol 

type UnaryOperatorSymbol uint8

UnaryOperatorSymbol represents a unary operator. 

const (
	UnaryMinus UnaryOperatorSymbol = iota
	UnaryComplement
	UnarySqrt
	UnaryCbrt
	UnaryPlus

	NumUnaryOperatorSymbols
)

UnaryExpr.Operator.Symbol

func (UnaryOperatorSymbol) String 

func (i UnaryOperatorSymbol) String() string

type UnionClause 

type UnionClause struct {
	Type        UnionType
	Left, Right *Select
	All         bool
}

UnionClause represents a UNION statement.

func (*UnionClause) Format 

func (node *UnionClause) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*UnionClause) StatementReturnType 

func (*UnionClause) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*UnionClause) StatementTag 

func (*UnionClause) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*UnionClause) StatementType 

func (*UnionClause) StatementType() StatementType

StatementType implements the Statement interface.

func (*UnionClause) String 

func (n *UnionClause) String() string

type UnionType 

type UnionType int

UnionType represents one of the three set operations in sql. 

const (
	UnionOp UnionType = iota
	IntersectOp
	ExceptOp
)

Union.Type

func (UnionType) String 

func (i UnionType) String() string

type UniqueConstraint 

type UniqueConstraint struct {
	WithoutIndex bool
}

UniqueConstraint represents UNIQUE on a column.

type UniqueConstraintTableDef 

type UniqueConstraintTableDef struct {
	IndexTableDef
	PrimaryKey   bool
	WithoutIndex bool
	IfNotExists  bool
}

UniqueConstraintTableDef represents a unique constraint within a CREATE TABLE statement.

func (*UniqueConstraintTableDef) Format 

func (node *UniqueConstraintTableDef) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*UniqueConstraintTableDef) SetIfNotExists 

func (node *UniqueConstraintTableDef) SetIfNotExists()

SetIfNotExists implements the ConstraintTableDef interface.

func (*UniqueConstraintTableDef) SetName 

func (node *UniqueConstraintTableDef) SetName(name Name)

SetName implements the TableDef interface.

type UnqualifiedStar 

type UnqualifiedStar struct{}

UnqualifiedStar corresponds to a standalone '*' in a scalar expression.

func (UnqualifiedStar) Eval 

func (expr UnqualifiedStar) Eval(ctx *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (UnqualifiedStar) Format 

func (UnqualifiedStar) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (UnqualifiedStar) NormalizeVarName 

func (u UnqualifiedStar) NormalizeVarName() (VarName, error)

NormalizeVarName implements the VarName interface.

func (UnqualifiedStar) ResolvedType 

func (UnqualifiedStar) ResolvedType() *types.T

ResolvedType implements the TypedExpr interface.

func (UnqualifiedStar) String 

func (u UnqualifiedStar) String() string

func (UnqualifiedStar) TypeCheck 

func (expr UnqualifiedStar) TypeCheck(
	_ context.Context, _ *SemaContext, desired *types.T,
) (TypedExpr, error)

TypeCheck implements the Expr interface.

func (UnqualifiedStar) Variable 

func (UnqualifiedStar) Variable()

Variable implements the VariableExpr interface.

func (UnqualifiedStar) Walk 

func (expr UnqualifiedStar) Walk(_ Visitor) Expr

Walk implements the Expr interface.

type UnresolvedName 

type UnresolvedName struct {
	// NumParts indicates the number of name parts specified, including
	// the star. Always 1 or greater.
	NumParts int

	// Star indicates the name ends with a star.
	// In that case, Parts below is empty in the first position.
	Star bool

	// Parts are the name components, in reverse order.
	// There are at most 4: column, table, schema, catalog/db.
	//
	// Note: NameParts has a fixed size so that we avoid a heap
	// allocation for the slice every time we construct an
	// UnresolvedName. It does imply however that Parts does not have
	// a meaningful "length"; its actual length (the number of parts
	// specified) is populated in NumParts above.
	Parts NameParts
}

UnresolvedName corresponds to an unresolved qualified name.

func MakeUnresolvedName 

func MakeUnresolvedName(args ...string) UnresolvedName

MakeUnresolvedName constructs an UnresolvedName from some strings.

func NewUnresolvedName 

func NewUnresolvedName(args ...string) *UnresolvedName

NewUnresolvedName constructs an UnresolvedName from some strings.

func (*UnresolvedName) Eval 

func (expr *UnresolvedName) Eval(ctx *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*UnresolvedName) Format 

func (u *UnresolvedName) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*UnresolvedName) NormalizeTablePattern 

func (n *UnresolvedName) NormalizeTablePattern() (TablePattern, error)

NormalizeTablePattern resolves an UnresolvedName to either a TableName or AllTablesSelector.

func (*UnresolvedName) NormalizeVarName 

func (n *UnresolvedName) NormalizeVarName() (VarName, error)

NormalizeVarName implements the VarName interface.

func (*UnresolvedName) ResolveFunction 

func (n *UnresolvedName) ResolveFunction(
	searchPath sessiondata.SearchPath,
) (*FunctionDefinition, error)

ResolveFunction transforms an UnresolvedName to a FunctionDefinition.

Function resolution currently takes a "short path" using the assumption that there are no stored functions in the database. That is, only functions in the (virtual) global namespace and virtual schemas can be used. This in turn implies that the current database does not matter and no resolver is needed.

TODO(whoever): this needs to be revisited when there can be stored functions. When that is the case, function names must be first normalized to e.g. TableName (or whatever an object name will be called by then) and then undergo regular name resolution via ResolveExisting(). When that happens, the following function can be removed.

func (*UnresolvedName) ResolvedType 

func (*UnresolvedName) ResolvedType() *types.T

ResolvedType implements the TypedExpr interface.

func (*UnresolvedName) String 

func (u *UnresolvedName) String() string

func (*UnresolvedName) ToUnresolvedObjectName 

func (u *UnresolvedName) ToUnresolvedObjectName(idx AnnotationIdx) (*UnresolvedObjectName, error)

ToUnresolvedObjectName converts an UnresolvedName to an UnresolvedObjectName.

func (*UnresolvedName) TypeCheck 

func (expr *UnresolvedName) TypeCheck(
	ctx context.Context, semaCtx *SemaContext, desired *types.T,
) (TypedExpr, error)

TypeCheck implements the Expr interface.

func (*UnresolvedName) Variable 

func (*UnresolvedName) Variable()

Variable implements the VariableExpr interface. Although, the UnresolvedName ought to be replaced to an IndexedVar before the points the VariableExpr interface is used.

func (*UnresolvedName) Walk 

func (expr *UnresolvedName) Walk(_ Visitor) Expr

Walk implements the Expr interface.

type UnresolvedObjectName 

type UnresolvedObjectName struct {
	// NumParts indicates the number of name parts specified; always 1 or greater.
	NumParts int

	// Parts are the name components, in reverse order.
	// There are at most 3: object name, schema, catalog/db.
	//
	// Note: Parts has a fixed size so that we avoid a heap allocation for the
	// slice every time we construct an UnresolvedObjectName. It does imply
	// however that Parts does not have a meaningful "length"; its actual length
	// (the number of parts specified) is populated in NumParts above.
	Parts [3]string

	// UnresolvedObjectName can be annotated with a *tree.TableName.
	AnnotatedNode
}

UnresolvedObjectName is an unresolved qualified name for a database object (table, view, etc). It is like UnresolvedName but more restrictive. It should only be constructed via NewUnresolvedObjectName.

func NewUnresolvedObjectName 

func NewUnresolvedObjectName(
	numParts int, parts [3]string, annotationIdx AnnotationIdx,
) (*UnresolvedObjectName, error)

NewUnresolvedObjectName creates an unresolved object name, verifying that it is well-formed.

func (*UnresolvedObjectName) Catalog 

func (u *UnresolvedObjectName) Catalog() string

Catalog returns the catalog of the object.

func (*UnresolvedObjectName) Format 

func (u *UnresolvedObjectName) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*UnresolvedObjectName) HasExplicitCatalog 

func (u *UnresolvedObjectName) HasExplicitCatalog() bool

HasExplicitCatalog returns whether a catalog is specified on the object.

func (*UnresolvedObjectName) HasExplicitSchema 

func (u *UnresolvedObjectName) HasExplicitSchema() bool

HasExplicitSchema returns whether a schema is specified on the object.

func (*UnresolvedObjectName) Object 

func (u *UnresolvedObjectName) Object() string

Object returns the unqualified object name.

func (*UnresolvedObjectName) Resolved 

func (u *UnresolvedObjectName) Resolved(ann *Annotations) ObjectName

Resolved returns the resolved name in the annotation for this node (or nil if there isn't one).

func (*UnresolvedObjectName) SQLString 

func (name *UnresolvedObjectName) SQLString() string

SQLString implements the ResolvableTypeReference interface.

func (*UnresolvedObjectName) Schema 

func (u *UnresolvedObjectName) Schema() string

Schema returns the schema of the object.

func (*UnresolvedObjectName) String 

func (u *UnresolvedObjectName) String() string

func (*UnresolvedObjectName) ToTableName 

func (u *UnresolvedObjectName) ToTableName() TableName

ToTableName converts the unresolved name to a table name.

TODO(radu): the schema and catalog names might not be in the right places; we would only figure that out during name resolution. This method is temporary, while we change all the code paths to only use TableName after resolution.

func (*UnresolvedObjectName) ToUnresolvedName 

func (u *UnresolvedObjectName) ToUnresolvedName() *UnresolvedName

ToUnresolvedName converts the unresolved object name to the more general unresolved name.

func (*UnresolvedObjectName) WalkTableExpr 

func (expr *UnresolvedObjectName) WalkTableExpr(_ Visitor) TableExpr

WalkTableExpr implements the TableExpr interface.

type UnrestrictedName 

type UnrestrictedName string

An UnrestrictedName is a Name that does not need to be escaped when it matches a reserved keyword.

In general, an UnrestrictedName is the result of parsing an unrestricted_name nonterminal, which is used in the grammar where reserved keywords can be unambiguously interpreted as identifiers. When formatted, an UnrestrictedName that matches a reserved keyword thus does not need to be quoted.

For historical reasons, some unrestricted_name nonterminals are instead parsed as Names. The only user-visible impact of this is that we are too aggressive about quoting names in certain positions. New grammar rules should prefer to parse unrestricted_name nonterminals into UnrestrictedNames.

func (*UnrestrictedName) Format 

func (u *UnrestrictedName) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*UnrestrictedName) String 

func (node *UnrestrictedName) String() string

type Unsplit 

type Unsplit struct {
	TableOrIndex TableIndexName
	// Each row contains values for the columns in the PK or index (or a prefix
	// of the columns).
	Rows *Select
	All  bool
}

Unsplit represents an `ALTER TABLE/INDEX .. UNSPLIT AT ..` statement.

func (*Unsplit) Format 

func (node *Unsplit) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*Unsplit) StatementReturnType 

func (*Unsplit) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*Unsplit) StatementTag 

func (*Unsplit) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*Unsplit) StatementType 

func (*Unsplit) StatementType() StatementType

StatementType implements the Statement interface.

func (*Unsplit) String 

func (n *Unsplit) String() string

type UnsupportedError 

type UnsupportedError struct {
	Err         error
	FeatureName string
}

UnsupportedError is an error object which is returned by some unimplemented SQL statements. It is currently only used to skip over PGDUMP statements during an import.

func (*UnsupportedError) Cause 

func (u *UnsupportedError) Cause() error

Cause implements causer.

func (*UnsupportedError) Error 

func (u *UnsupportedError) Error() string

func (*UnsupportedError) Unwrap 

func (u *UnsupportedError) Unwrap() error

Unwrap implements wrapper.

type Update 

type Update struct {
	With      *With
	Table     TableExpr
	Exprs     UpdateExprs
	From      TableExprs
	Where     *Where
	OrderBy   OrderBy
	Limit     *Limit
	Returning ReturningClause
}

Update represents an UPDATE statement.

func (*Update) Format 

func (node *Update) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*Update) StatementReturnType 

func (n *Update) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*Update) StatementTag 

func (*Update) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*Update) StatementType 

func (*Update) StatementType() StatementType

StatementType implements the Statement interface.

func (*Update) String 

func (n *Update) String() string

type UpdateExpr 

type UpdateExpr struct {
	Tuple bool
	Names NameList
	Expr  Expr
}

UpdateExpr represents an update expression.

func (*UpdateExpr) Format 

func (node *UpdateExpr) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type UpdateExprs 

type UpdateExprs []*UpdateExpr

UpdateExprs represents a list of update expressions.

func (*UpdateExprs) Format 

func (node *UpdateExprs) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type UserPriority 

type UserPriority int

UserPriority holds the user priority for a transaction. 

const (
	UnspecifiedUserPriority UserPriority = iota
	Low
	Normal
	High
)

UserPriority values

func UserPriorityFromString 

func UserPriorityFromString(val string) (_ UserPriority, ok bool)

UserPriorityFromString converts a string into a UserPriority.

func (UserPriority) String 

func (up UserPriority) String() string

type UsingJoinCond 

type UsingJoinCond struct {
	Cols NameList
}

UsingJoinCond represents a USING join condition.

func (*UsingJoinCond) Format 

func (node *UsingJoinCond) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type ValidationBehavior 

type ValidationBehavior int

ValidationBehavior specifies whether or not a constraint is validated. 

const (
	// ValidationDefault is the default validation behavior (immediate).
	ValidationDefault ValidationBehavior = iota
	// ValidationSkip skips validation of any existing data.
	ValidationSkip
)

type ValueGenerator 

type ValueGenerator interface {
	// ResolvedType returns the type signature of this value generator.
	ResolvedType() *types.T

	// Next determines whether there is a row of data available.
	Next(context.Context) (bool, error)

	// Values retrieves the current row of data.
	Values() (Datums, error)

	// Close must be called after Start() before disposing of the
	// ValueGenerator. It does not need to be called if Start() has not
	// been called yet. It must not be called in-between restarts.
	Close(ctx context.Context)
}

ValueGenerator is the interface provided by the value generator functions for SQL SRfs. Objects that implement this interface are able to produce rows of values in a streaming fashion (like Go iterators or generators in Python).

type ValuesClause 

type ValuesClause struct {
	Rows []Exprs
}

ValuesClause represents a VALUES clause.

func (*ValuesClause) Format 

func (node *ValuesClause) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ValuesClause) StatementReturnType 

func (*ValuesClause) StatementReturnType() StatementReturnType

StatementReturnType implements the Statement interface.

func (*ValuesClause) StatementTag 

func (*ValuesClause) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ValuesClause) StatementType 

func (*ValuesClause) StatementType() StatementType

StatementType implements the Statement interface.

func (*ValuesClause) String 

func (n *ValuesClause) String() string

type VarName 

type VarName interface {
	TypedExpr

	// NormalizeVarName() guarantees to return a variable name
	// that is not an UnresolvedName. This converts the UnresolvedName
	// to an AllColumnsSelector or ColumnItem as necessary.
	NormalizeVarName() (VarName, error)
}

VarName occurs inside scalar expressions.

Immediately after parsing, the following types can occur:

  • UnqualifiedStar: a naked star as argument to a function, e.g. count(*), or at the top level of a SELECT clause. See also uses of StarExpr() and StarSelectExpr() in the grammar.

- UnresolvedName: other names of the form `a.b....e` or `a.b...e.*`.

Consumers of variable names do not like UnresolvedNames and instead expect either AllColumnsSelector or ColumnItem. Use NormalizeVarName() for this.

After a ColumnItem is available, it should be further resolved, for this the Resolve() method should be used; see name_resolution.go.

func StarExpr 

func StarExpr() VarName

StarExpr is a convenience function that represents an unqualified "*".

type VariableExpr 

type VariableExpr interface {
	Expr
	Variable()
}

VariableExpr is an Expr that may change per row. It is used to signal the evaluation/simplification machinery that the underlying Expr is not constant.

type VariadicType 

type VariadicType struct {
	FixedTypes []*types.T
	VarType    *types.T
}

VariadicType is a TypeList implementation which accepts a fixed number of arguments at the beginning and an arbitrary number of homogenous arguments at the end.

func (VariadicType) GetAt 

func (v VariadicType) GetAt(i int) *types.T

GetAt is part of the TypeList interface.

func (VariadicType) Length 

func (v VariadicType) Length() int

Length is part of the TypeList interface.

func (VariadicType) Match 

func (v VariadicType) Match(types []*types.T) bool

Match is part of the TypeList interface.

func (VariadicType) MatchAt 

func (v VariadicType) MatchAt(typ *types.T, i int) bool

MatchAt is part of the TypeList interface.

func (VariadicType) MatchLen 

func (v VariadicType) MatchLen(l int) bool

MatchLen is part of the TypeList interface.

func (VariadicType) String 

func (v VariadicType) String() string

func (VariadicType) Types 

func (v VariadicType) Types() []*types.T

Types is part of the TypeList interface.

type Visitor 

type Visitor interface {
	// VisitPre is called for each node before recursing into that subtree. Upon return, if recurse
	// is false, the visit will not recurse into the subtree (and VisitPost will not be called for
	// this node).
	//
	// The returned Expr replaces the visited expression and can be used for rewriting expressions.
	// The function should NOT modify nodes in-place; it should make copies of nodes. The Walk
	// infrastructure will automatically make copies of parents as needed.
	VisitPre(expr Expr) (recurse bool, newExpr Expr)

	// VisitPost is called for each node after recursing into the subtree. The returned Expr
	// replaces the visited expression and can be used for rewriting expressions.
	//
	// The returned Expr replaces the visited expression and can be used for rewriting expressions.
	// The function should NOT modify nodes in-place; it should make and return copies of nodes. The
	// Walk infrastructure will automatically make copies of parents as needed.
	VisitPost(expr Expr) (newNode Expr)
}

Visitor defines methods that are called for nodes during an expression or statement walk.

type Volatility 

type Volatility int8

Volatility indicates whether the result of a function is dependent *only* on the values of its explicit arguments, or can change due to outside factors (such as parameter variables or table contents).

The values are ordered with smaller values being strictly more restrictive than larger values.

NOTE: functions having side-effects, such as setval(), must be labeled volatile to ensure they will not get optimized away, even if the actual return value is not changeable. 

const (
	// VolatilityLeakProof means that the operator cannot modify the database, the
	// transaction state, or any other state. It cannot depend on configuration
	// settings and is guaranteed to return the same results given the same
	// arguments in any context. In addition, no information about the arguments
	// is conveyed except via the return value. Any function that might throw an
	// error depending on the values of its arguments is not leak-proof.
	//
	// USE THIS WITH CAUTION! The optimizer might call operators that are leak
	// proof on inputs that they wouldn't normally be called on (e.g. pulling
	// expressions out of a CASE). In the future, they may even run on rows that
	// the user doesn't have permission to access.
	//
	// Note: VolatilityLeakProof is strictly stronger than VolatilityImmutable. In
	// principle it could be possible to have leak-proof stable or volatile
	// functions (perhaps now()); but this is not useful in practice as very few
	// operators are marked leak-proof.
	// Examples: integer comparison.
	VolatilityLeakProof Volatility = 1 + iota
	// VolatilityImmutable means that the operator cannot modify the database, the
	// transaction state, or any other state. It cannot depend on configuration
	// settings and is guaranteed to return the same results given the same
	// arguments in any context. ImmutableCopy operators can be constant folded.
	// Examples: log, from_json.
	VolatilityImmutable
	// VolatilityStable means that the operator cannot modify the database or the
	// transaction state and is guaranteed to return the same results given the
	// same arguments whenever it is evaluated within the same statement. Multiple
	// calls to a stable operator can be optimized to a single call.
	// Examples: current_timestamp, current_date.
	VolatilityStable
	// VolatilityVolatile means that the operator can do anything, including
	// modifying database state.
	// Examples: random, crdb_internal.force_error, nextval.
	VolatilityVolatile
)

func LookupCastVolatility 

func LookupCastVolatility(from, to *types.T, sd *sessiondata.SessionData) (_ Volatility, ok bool)

LookupCastVolatility returns the volatility of a valid cast.

func VolatilityFromPostgres 

func VolatilityFromPostgres(provolatile string, proleakproof bool) (Volatility, error)

VolatilityFromPostgres returns a Volatility that matches the postgres provolatile/proleakproof settings.

func (Volatility) String 

func (v Volatility) String() string

String returns the byte representation of Volatility as a string.

func (Volatility) ToPostgres 

func (v Volatility) ToPostgres() (provolatile string, proleakproof bool)

ToPostgres returns the postgres "provolatile" string ("i" or "s" or "v") and the "proleakproof" flag.

type When 

type When struct {
	Cond Expr
	Val  Expr
}

When represents a WHEN sub-expression.

func (*When) Format 

func (node *When) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type Where 

type Where struct {
	Type string
	Expr Expr
}

Where represents a WHERE or HAVING clause.

func NewWhere 

func NewWhere(typ string, expr Expr) *Where

NewWhere creates a WHERE or HAVING clause out of an Expr. If the expression is nil, it returns nil.

func (*Where) Format 

func (node *Where) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type Window 

type Window []*WindowDef

Window represents a WINDOW clause.

func (*Window) Format 

func (node *Window) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type WindowDef 

type WindowDef struct {
	Name       Name
	RefName    Name
	Partitions Exprs
	OrderBy    OrderBy
	Frame      *WindowFrame
}

WindowDef represents a single window definition expression.

func OverrideWindowDef 

func OverrideWindowDef(base *WindowDef, override WindowDef) (WindowDef, error)

OverrideWindowDef implements the logic to have a base window definition which then gets augmented by a different window definition.

func (*WindowDef) Format 

func (node *WindowDef) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type WindowFrame 

type WindowFrame struct {
	Mode      treewindow.WindowFrameMode      // the mode of framing being used
	Bounds    WindowFrameBounds               // the bounds of the frame
	Exclusion treewindow.WindowFrameExclusion // optional frame exclusion
}

WindowFrame represents static state of window frame over which calculations are made.

func (*WindowFrame) DefaultFrameExclusion 

func (f *WindowFrame) DefaultFrameExclusion() bool

DefaultFrameExclusion returns true if optional frame exclusion is omitted.

func (*WindowFrame) Format 

func (node *WindowFrame) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*WindowFrame) IsDefaultFrame 

func (f *WindowFrame) IsDefaultFrame() bool

IsDefaultFrame returns whether a frame equivalent to the default frame is being used (default is RANGE UNBOUNDED PRECEDING).

type WindowFrameBound 

type WindowFrameBound struct {
	BoundType  treewindow.WindowFrameBoundType
	OffsetExpr Expr
}

WindowFrameBound specifies the offset and the type of boundary.

func (*WindowFrameBound) Format 

func (node *WindowFrameBound) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*WindowFrameBound) HasOffset 

func (node *WindowFrameBound) HasOffset() bool

HasOffset returns whether node contains an offset.

type WindowFrameBounds 

type WindowFrameBounds struct {
	StartBound *WindowFrameBound
	EndBound   *WindowFrameBound
}

WindowFrameBounds specifies boundaries of the window frame. The row at StartBound is included whereas the row at EndBound is not.

func (*WindowFrameBounds) HasOffset 

func (node *WindowFrameBounds) HasOffset() bool

HasOffset returns whether node contains an offset in either of the bounds.

type WindowFrameRangeOps 

type WindowFrameRangeOps struct{}

WindowFrameRangeOps allows for looking up an implementation of binary operators necessary for RANGE mode of framing.

func (WindowFrameRangeOps) LookupImpl 

func (o WindowFrameRangeOps) LookupImpl(left, right *types.T) (*BinOp, *BinOp, bool)

LookupImpl looks up implementation of Plus and Minus binary operators for provided left and right types and returns them along with a boolean which indicates whether lookup is successful.

type WindowFrameRun 

type WindowFrameRun struct {
	// constant for all calls to WindowFunc.Add
	Rows             IndexedRows
	ArgsIdxs         []uint32     // indices of the arguments to the window function
	Frame            *WindowFrame // If non-nil, Frame represents the frame specification of this window. If nil, default frame is used.
	StartBoundOffset Datum
	EndBoundOffset   Datum
	FilterColIdx     int
	OrdColIdx        int                // Column over which rows are ordered within the partition. It is only required in RANGE mode.
	OrdDirection     encoding.Direction // Direction of the ordering over OrdColIdx.
	PlusOp, MinusOp  *BinOp             // Binary operators for addition and subtraction required only in RANGE mode.
	PeerHelper       PeerGroupsIndicesHelper

	// changes for each peer group
	CurRowPeerGroupNum int // the number of the current row's peer group

	// changes for each row (each call to WindowFunc.Add)
	RowIdx int // the current row index
	// contains filtered or unexported fields
}

WindowFrameRun contains the runtime state of window frame during calculations.

func (*WindowFrameRun) Args 

func (wfr *WindowFrameRun) Args(ctx context.Context) (Datums, error)

Args returns the current argument set in the window frame.

func (*WindowFrameRun) ArgsByRowIdx 

func (wfr *WindowFrameRun) ArgsByRowIdx(ctx context.Context, idx int) (Datums, error)

ArgsByRowIdx returns the argument set of the row at idx.

func (*WindowFrameRun) ArgsWithRowOffset 

func (wfr *WindowFrameRun) ArgsWithRowOffset(ctx context.Context, offset int) (Datums, error)

ArgsWithRowOffset returns the argument set at the given offset in the window frame.

func (*WindowFrameRun) DefaultFrameSize 

func (wfr *WindowFrameRun) DefaultFrameSize() int

DefaultFrameSize returns the size of default window frame which contains the rows from the start of the partition through the last peer of the current row.

func (*WindowFrameRun) FirstInPeerGroup 

func (wfr *WindowFrameRun) FirstInPeerGroup() bool

FirstInPeerGroup returns if the current row is the first in its peer group.

func (*WindowFrameRun) FrameEndIdx 

func (wfr *WindowFrameRun) FrameEndIdx(ctx context.Context, evalCtx *EvalContext) (int, error)

FrameEndIdx returns the index of the first row after the frame.

func (*WindowFrameRun) FrameSize 

func (wfr *WindowFrameRun) FrameSize(ctx context.Context, evalCtx *EvalContext) (int, error)

FrameSize returns the number of rows in the current frame (taking into account - if present - a filter and a frame exclusion).

func (*WindowFrameRun) FrameStartIdx 

func (wfr *WindowFrameRun) FrameStartIdx(ctx context.Context, evalCtx *EvalContext) (int, error)

FrameStartIdx returns the index of starting row in the frame (which is the first to be included).

func (*WindowFrameRun) FullPartitionIsInWindow 

func (wfr *WindowFrameRun) FullPartitionIsInWindow() bool

FullPartitionIsInWindow checks whether we have such a window frame that all rows of the partition are inside of the window for each of the rows.

func (*WindowFrameRun) IsRowSkipped 

func (wfr *WindowFrameRun) IsRowSkipped(ctx context.Context, idx int) (bool, error)

IsRowSkipped returns whether a row at index idx is skipped from the window frame (it can either be filtered out according to the filter clause or excluded according to the frame exclusion clause) and any error if it occurs.

func (*WindowFrameRun) PartitionSize 

func (wfr *WindowFrameRun) PartitionSize() int

PartitionSize returns the number of rows in the current partition.

func (*WindowFrameRun) RangeModeWithOffsets 

func (wfr *WindowFrameRun) RangeModeWithOffsets() bool

RangeModeWithOffsets returns whether the frame is in RANGE mode with at least one of the bounds containing an offset.

func (*WindowFrameRun) Rank 

func (wfr *WindowFrameRun) Rank() int

Rank returns the rank of the current row.

type WindowFunc 

type WindowFunc interface {
	// Compute computes the window function for the provided window frame, given the
	// current state of WindowFunc. The method should be called sequentially for every
	// row in a partition in turn with the desired ordering of the WindowFunc. This is
	// because there is an implicit carried dependency between each row and all those
	// that have come before it (like in an AggregateFunc). As such, this approach does
	// not present any exploitable associativity/commutativity for optimization.
	Compute(context.Context, *EvalContext, *WindowFrameRun) (Datum, error)

	// Reset resets the window function which allows for reusing it when
	// computing over different partitions.
	Reset(context.Context)

	// Close allows the window function to free any memory it requested during execution,
	// such as during the execution of an aggregation like CONCAT_AGG or ARRAY_AGG.
	Close(context.Context, *EvalContext)
}

WindowFunc performs a computation on each row using data from a provided *WindowFrameRun.

type With 

type With struct {
	Recursive bool
	CTEList   []*CTE
}

With represents a WITH statement.

func (*With) Format 

func (node *With) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

type ZoneSpecifier 

type ZoneSpecifier struct {
	// Only one of NamedZone, Database or TableOrIndex may be set.
	NamedZone UnrestrictedName
	Database  Name
	// TODO(radu): TableOrIndex abuses TableIndexName: it allows for the case when
	// an index is not specified, in which case TableOrIndex.Index is empty.
	TableOrIndex TableIndexName

	// Partition is only respected when Table is set.
	Partition Name
}

ZoneSpecifier represents a reference to a configurable zone of the keyspace.

func (*ZoneSpecifier) Format 

func (node *ZoneSpecifier) Format(ctx *FmtCtx)

Format implements the NodeFormatter interface.

func (*ZoneSpecifier) String 

func (node *ZoneSpecifier) String() string

func (ZoneSpecifier) TargetsIndex 

func (node ZoneSpecifier) TargetsIndex() bool

TargetsIndex returns whether the zone specifier targets an index.

func (ZoneSpecifier) TargetsPartition 

func (node ZoneSpecifier) TargetsPartition() bool

TargetsPartition returns whether the zone specifier targets a partition.

func (ZoneSpecifier) TargetsTable 

func (node ZoneSpecifier) TargetsTable() bool

TargetsTable returns whether the zone specifier targets a table or a subzone within a table.

func (ZoneSpecifier) TelemetryName 

func (node ZoneSpecifier) TelemetryName() string

TelemetryName returns a name fitting for telemetry purposes.

Source Files

View all Source files

Directories

Path Synopsis
Package treebin contains the implementation-agnostic information about all binary operators that we support.
 Package treebin contains the implementation-agnostic information about all binary operators that we support.
Package treecmp contains the implementation-agnostic information about all comparison operators that we support.
 Package treecmp contains the implementation-agnostic information about all comparison operators that we support.
Package treewindow contains some constants describing window-function specific options.
 Package treewindow contains some constants describing window-function specific options.

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