parser

Documentation

Index

• Constants
• Variables
• func AsString(n NodeFormatter) string
• func AsStringWithFlags(n NodeFormatter, f FmtFlags) string
• func ContainsVars(expr Expr) bool
• func FormatNode(buf *bytes.Buffer, f FmtFlags, n NodeFormatter)
• func SimilarEscape(pattern string) string
• func ValidateRestartCheckpoint(savepoint string) error
• func WalkExprConst(v Visitor, expr Expr)
• type AliasClause
  • func (a AliasClause) Format(buf *bytes.Buffer, f FmtFlags)
• type AliasedTableExpr
  • func (node *AliasedTableExpr) Format(buf *bytes.Buffer, f FmtFlags)
  • func (node *AliasedTableExpr) String() string
• type AlterTable
  • func (node *AlterTable) Format(buf *bytes.Buffer, f FmtFlags)
  • func (*AlterTable) StatementTag() string
  • func (*AlterTable) StatementType() StatementType
  • func (n *AlterTable) String() string
• type AlterTableAddColumn
  • func (node *AlterTableAddColumn) Format(buf *bytes.Buffer, f FmtFlags)
  • func (n *AlterTableAddColumn) String() string
• type AlterTableAddConstraint
  • func (node *AlterTableAddConstraint) Format(buf *bytes.Buffer, f FmtFlags)
  • func (n *AlterTableAddConstraint) String() string
• type AlterTableCmd
• type AlterTableCmds
  • func (node AlterTableCmds) Format(buf *bytes.Buffer, f FmtFlags)
  • func (n AlterTableCmds) String() string
• type AlterTableDropColumn
  • func (node *AlterTableDropColumn) Format(buf *bytes.Buffer, f FmtFlags)
  • func (n *AlterTableDropColumn) String() string
• type AlterTableDropConstraint
  • func (node *AlterTableDropConstraint) Format(buf *bytes.Buffer, f FmtFlags)
  • func (n *AlterTableDropConstraint) String() string
• type AlterTableDropNotNull
  • func (node *AlterTableDropNotNull) Format(buf *bytes.Buffer, f FmtFlags)
  • func (node *AlterTableDropNotNull) GetColumn() string
  • func (n *AlterTableDropNotNull) String() string
• type AlterTableSetDefault
  • func (node *AlterTableSetDefault) Format(buf *bytes.Buffer, f FmtFlags)
  • func (node *AlterTableSetDefault) GetColumn() string
  • func (n *AlterTableSetDefault) String() string
• type AndExpr
  • func NewTypedAndExpr(left, right TypedExpr) *AndExpr
  • func (expr *AndExpr) Eval(ctx *EvalContext) (Datum, error)
  • func (node *AndExpr) Format(buf *bytes.Buffer, f FmtFlags)
  • func (ta AndExpr) ReturnType() Datum
  • func (node *AndExpr) String() string
  • func (expr *AndExpr) TypeCheck(ctx *SemaContext, desired Datum) (TypedExpr, error)
  • func (node *AndExpr) TypedLeft() TypedExpr
  • func (node *AndExpr) TypedRight() TypedExpr
  • func (expr *AndExpr) Walk(v Visitor) Expr
• type AnyType
• type ArgTypes
• type Array
  • func (node *Array) Format(buf *bytes.Buffer, f FmtFlags)
  • func (node *Array) String() string
  • func (expr *Array) TypeCheck(_ *SemaContext, desired Datum) (TypedExpr, error)
  • func (expr *Array) Walk(v Visitor) Expr
• type ArrayIndirection
  • func (a *ArrayIndirection) Format(buf *bytes.Buffer, f FmtFlags)
• type BeginTransaction
  • func (node *BeginTransaction) Format(buf *bytes.Buffer, f FmtFlags)
  • func (*BeginTransaction) StatementTag() string
  • func (*BeginTransaction) StatementType() StatementType
  • func (n *BeginTransaction) String() string
• type BinOp
• type BinaryExpr
  • func (expr *BinaryExpr) Eval(ctx *EvalContext) (Datum, error)
  • func (node *BinaryExpr) Format(buf *bytes.Buffer, f FmtFlags)
  • func (ta BinaryExpr) ReturnType() Datum
  • func (node *BinaryExpr) String() string
  • func (expr *BinaryExpr) TypeCheck(ctx *SemaContext, desired Datum) (TypedExpr, error)
  • func (expr *BinaryExpr) Walk(v Visitor) Expr
• type BinaryOperator
  • func (i BinaryOperator) String() string
• type BoolColType
  • func (node *BoolColType) Format(buf *bytes.Buffer, f FmtFlags)
  • func (node *BoolColType) String() string
• type Builtin
• type BytesColType
  • func (node *BytesColType) Format(buf *bytes.Buffer, f FmtFlags)
  • func (node *BytesColType) String() string
• type CaseExpr
  • func (expr *CaseExpr) CopyNode() *CaseExpr
  • func (expr *CaseExpr) Eval(ctx *EvalContext) (Datum, error)
  • func (node *CaseExpr) Format(buf *bytes.Buffer, f FmtFlags)
  • func (ta CaseExpr) ReturnType() Datum
  • func (node *CaseExpr) String() string
  • func (expr *CaseExpr) TypeCheck(ctx *SemaContext, desired Datum) (TypedExpr, error)
  • func (expr *CaseExpr) Walk(v Visitor) Expr
• type CastExpr
  • func (expr *CastExpr) Eval(ctx *EvalContext) (Datum, error)
  • func (node *CastExpr) Format(buf *bytes.Buffer, f FmtFlags)
  • func (ta CastExpr) ReturnType() Datum
  • func (node *CastExpr) String() string
  • func (expr *CastExpr) TypeCheck(ctx *SemaContext, desired Datum) (TypedExpr, error)
  • func (expr *CastExpr) Walk(v Visitor) Expr
• type CheckConstraintTableDef
  • func (node *CheckConstraintTableDef) Format(buf *bytes.Buffer, f FmtFlags)
• type CmpOp
• type CoalesceExpr
  • func (expr *CoalesceExpr) CopyNode() *CoalesceExpr
  • func (expr *CoalesceExpr) Eval(ctx *EvalContext) (Datum, error)
  • func (node *CoalesceExpr) Format(buf *bytes.Buffer, f FmtFlags)
  • func (ta CoalesceExpr) ReturnType() Datum
  • func (node *CoalesceExpr) String() string
  • func (expr *CoalesceExpr) TypeCheck(ctx *SemaContext, desired Datum) (TypedExpr, error)
  • func (expr *CoalesceExpr) Walk(v Visitor) Expr
• type ColumnCheckConstraint
• type ColumnDefault
• type ColumnFKConstraint
• type ColumnMutationCmd
• type ColumnQualification
• type ColumnTableDef
  • func (node *ColumnTableDef) Format(buf *bytes.Buffer, f FmtFlags)
• type ColumnType
• type CommitTransaction
  • func (node *CommitTransaction) Format(buf *bytes.Buffer, f FmtFlags)
  • func (*CommitTransaction) StatementTag() string
  • func (*CommitTransaction) StatementType() StatementType
  • func (n *CommitTransaction) String() string
• type ComparisonExpr
  • func NewTypedComparisonExpr(op ComparisonOperator, left, right TypedExpr) *ComparisonExpr
  • func (expr *ComparisonExpr) Eval(ctx *EvalContext) (Datum, error)
  • func (node *ComparisonExpr) Format(buf *bytes.Buffer, f FmtFlags)
  • func (node *ComparisonExpr) IsMixedTypeComparison() bool
  • func (ta ComparisonExpr) ReturnType() Datum
  • func (node *ComparisonExpr) String() string
  • func (expr *ComparisonExpr) TypeCheck(ctx *SemaContext, desired Datum) (TypedExpr, error)
  • func (node *ComparisonExpr) TypedLeft() TypedExpr
  • func (node *ComparisonExpr) TypedRight() TypedExpr
  • func (expr *ComparisonExpr) Walk(v Visitor) Expr
• type ComparisonOperator
  • func (i ComparisonOperator) String() string
• type Constant
• type ConstraintTableDef
• type CreateDatabase
  • func (node *CreateDatabase) Format(buf *bytes.Buffer, f FmtFlags)
  • func (*CreateDatabase) StatementTag() string
  • func (*CreateDatabase) StatementType() StatementType
  • func (n *CreateDatabase) String() string
• type CreateIndex
  • func (node *CreateIndex) Format(buf *bytes.Buffer, f FmtFlags)
  • func (*CreateIndex) StatementTag() string
  • func (*CreateIndex) StatementType() StatementType
  • func (n *CreateIndex) String() string
• type CreateTable
  • func (node *CreateTable) Format(buf *bytes.Buffer, f FmtFlags)
  • func (*CreateTable) StatementTag() string
  • func (*CreateTable) StatementType() StatementType
  • func (n *CreateTable) String() string
• type DBool
  • func GetBool(d Datum) (DBool, error)
  • func MakeDBool(d DBool) *DBool
  • func ParseDBool(s string) (*DBool, error)
  • func (d *DBool) Compare(other Datum) int
  • func (t *DBool) Eval(_ *EvalContext) (Datum, error)
  • func (d *DBool) Format(buf *bytes.Buffer, f FmtFlags)
  • func (*DBool) HasNext() bool
  • func (*DBool) HasPrev() bool
  • func (d *DBool) IsMax() bool
  • func (d *DBool) IsMin() bool
  • func (*DBool) Next() Datum
  • func (*DBool) Prev() Datum
  • func (*DBool) ReturnType() Datum
  • func (node *DBool) String() string
  • func (*DBool) Type() string
  • func (d *DBool) TypeCheck(_ *SemaContext, desired Datum) (TypedExpr, error)
  • func (d *DBool) TypeEqual(other Datum) bool
  • func (expr *DBool) Walk(_ Visitor) Expr
• type DBytes
  • func NewDBytes(d DBytes) *DBytes
  • func (d *DBytes) Compare(other Datum) int
  • func (t *DBytes) Eval(_ *EvalContext) (Datum, error)
  • func (d *DBytes) Format(buf *bytes.Buffer, f FmtFlags)
  • func (*DBytes) HasNext() bool
  • func (*DBytes) HasPrev() bool
  • func (*DBytes) IsMax() bool
  • func (d *DBytes) IsMin() bool
  • func (d *DBytes) Next() Datum
  • func (d *DBytes) Prev() Datum
  • func (d *DBytes) ReturnType() Datum
  • func (node *DBytes) String() string
  • func (*DBytes) Type() string
  • func (d *DBytes) TypeCheck(_ *SemaContext, desired Datum) (TypedExpr, error)
  • func (d *DBytes) TypeEqual(other Datum) bool
  • func (expr *DBytes) Walk(_ Visitor) Expr
• type DDate
  • func NewDDate(d DDate) *DDate
  • func NewDDateFromTime(t time.Time, loc *time.Location) *DDate
  • func ParseDDate(s string, loc *time.Location) (*DDate, error)
  • func (d *DDate) Compare(other Datum) int
  • func (t *DDate) Eval(_ *EvalContext) (Datum, error)
  • func (d *DDate) Format(buf *bytes.Buffer, f FmtFlags)
  • func (*DDate) HasNext() bool
  • func (*DDate) HasPrev() bool
  • func (d *DDate) IsMax() bool
  • func (d *DDate) IsMin() bool
  • func (d *DDate) Next() Datum
  • func (d *DDate) Prev() Datum
  • func (*DDate) ReturnType() Datum
  • func (node *DDate) String() string
  • func (*DDate) Type() string
  • func (d *DDate) TypeCheck(_ *SemaContext, desired Datum) (TypedExpr, error)
  • func (d *DDate) TypeEqual(other Datum) bool
  • func (expr *DDate) Walk(_ Visitor) Expr
• type DDecimal
  • func ParseDDecimal(s string) (*DDecimal, error)
  • func (d *DDecimal) Compare(other Datum) int
  • func (t *DDecimal) Eval(_ *EvalContext) (Datum, error)
  • func (d *DDecimal) Format(buf *bytes.Buffer, f FmtFlags)
  • func (*DDecimal) HasNext() bool
  • func (*DDecimal) HasPrev() bool
  • func (*DDecimal) IsMax() bool
  • func (*DDecimal) IsMin() bool
  • func (d *DDecimal) Next() Datum
  • func (d *DDecimal) Prev() Datum
  • func (d *DDecimal) ReturnType() Datum
  • func (node *DDecimal) String() string
  • func (*DDecimal) Type() string
  • func (d *DDecimal) TypeCheck(_ *SemaContext, desired Datum) (TypedExpr, error)
  • func (d *DDecimal) TypeEqual(other Datum) bool
  • func (expr *DDecimal) Walk(_ Visitor) Expr
• type DFloat
  • func NewDFloat(d DFloat) *DFloat
  • func ParseDFloat(s string) (*DFloat, error)
  • func (d *DFloat) Compare(other Datum) int
  • func (t *DFloat) Eval(_ *EvalContext) (Datum, error)
  • func (d *DFloat) Format(buf *bytes.Buffer, f FmtFlags)
  • func (*DFloat) HasNext() bool
  • func (*DFloat) HasPrev() bool
  • func (d *DFloat) IsMax() bool
  • func (d *DFloat) IsMin() bool
  • func (d *DFloat) Next() Datum
  • func (d *DFloat) Prev() Datum
  • func (*DFloat) ReturnType() Datum
  • func (node *DFloat) String() string
  • func (*DFloat) Type() string
  • func (d *DFloat) TypeCheck(_ *SemaContext, desired Datum) (TypedExpr, error)
  • func (d *DFloat) TypeEqual(other Datum) bool
  • func (expr *DFloat) Walk(_ Visitor) Expr
• type DInt
  • func NewDInt(d DInt) *DInt
  • func ParseDInt(s string) (*DInt, error)
  • func (d *DInt) Compare(other Datum) int
  • func (t *DInt) Eval(_ *EvalContext) (Datum, error)
  • func (d *DInt) Format(buf *bytes.Buffer, f FmtFlags)
  • func (*DInt) HasNext() bool
  • func (*DInt) HasPrev() bool
  • func (d *DInt) IsMax() bool
  • func (d *DInt) IsMin() bool
  • func (d *DInt) Next() Datum
  • func (d *DInt) Prev() Datum
  • func (*DInt) ReturnType() Datum
  • func (node *DInt) String() string
  • func (*DInt) Type() string
  • func (d *DInt) TypeCheck(_ *SemaContext, desired Datum) (TypedExpr, error)
  • func (d *DInt) TypeEqual(other Datum) bool
  • func (expr *DInt) Walk(_ Visitor) Expr
• type DInterval
  • func ParseDInterval(s string) (*DInterval, error)
  • func (d *DInterval) Compare(other Datum) int
  • func (t *DInterval) Eval(_ *EvalContext) (Datum, error)
  • func (d *DInterval) Format(buf *bytes.Buffer, f FmtFlags)
  • func (*DInterval) HasNext() bool
  • func (*DInterval) HasPrev() bool
  • func (d *DInterval) IsMax() bool
  • func (d *DInterval) IsMin() bool
  • func (d *DInterval) Next() Datum
  • func (d *DInterval) Prev() Datum
  • func (d *DInterval) ReturnType() Datum
  • func (node *DInterval) String() string
  • func (*DInterval) Type() string
  • func (d *DInterval) TypeCheck(_ *SemaContext, desired Datum) (TypedExpr, error)
  • func (d *DInterval) TypeEqual(other Datum) bool
  • func (expr *DInterval) Walk(_ Visitor) Expr
• type DPlaceholder
  • func (d *DPlaceholder) Compare(other Datum) int
  • func (t *DPlaceholder) Eval(_ *EvalContext) (Datum, error)
  • func (d *DPlaceholder) Format(buf *bytes.Buffer, f FmtFlags)
  • func (*DPlaceholder) HasNext() bool
  • func (*DPlaceholder) HasPrev() bool
  • func (*DPlaceholder) IsMax() bool
  • func (*DPlaceholder) IsMin() bool
  • func (d *DPlaceholder) Name() string
  • func (d *DPlaceholder) Next() Datum
  • func (d *DPlaceholder) Prev() Datum
  • func (d *DPlaceholder) ReturnType() Datum
  • func (node *DPlaceholder) String() string
  • func (*DPlaceholder) Type() string
  • func (d *DPlaceholder) TypeCheck(_ *SemaContext, desired Datum) (TypedExpr, error)
  • func (d *DPlaceholder) TypeEqual(other Datum) bool
  • func (*DPlaceholder) Variable()
  • func (expr *DPlaceholder) Walk(_ Visitor) Expr
• type DString
  • func NewDString(d string) *DString
  • func (d *DString) Compare(other Datum) int
  • func (t *DString) Eval(_ *EvalContext) (Datum, error)
  • func (d *DString) Format(buf *bytes.Buffer, f FmtFlags)
  • func (*DString) HasNext() bool
  • func (*DString) HasPrev() bool
  • func (*DString) IsMax() bool
  • func (d *DString) IsMin() bool
  • func (d *DString) Next() Datum
  • func (d *DString) Prev() Datum
  • func (*DString) ReturnType() Datum
  • func (node *DString) String() string
  • func (*DString) Type() string
  • func (d *DString) TypeCheck(_ *SemaContext, desired Datum) (TypedExpr, error)
  • func (d *DString) TypeEqual(other Datum) bool
  • func (expr *DString) Walk(_ Visitor) Expr
• type DTimestamp
  • func MakeDTimestamp(t time.Time, precision time.Duration) *DTimestamp
  • func ParseDTimestamp(s string, loc *time.Location, precision time.Duration) (*DTimestamp, error)
  • func (d *DTimestamp) Compare(other Datum) int
  • func (t *DTimestamp) Eval(_ *EvalContext) (Datum, error)
  • func (d *DTimestamp) Format(buf *bytes.Buffer, f FmtFlags)
  • func (*DTimestamp) HasNext() bool
  • func (*DTimestamp) HasPrev() bool
  • func (d *DTimestamp) IsMax() bool
  • func (d *DTimestamp) IsMin() bool
  • func (d *DTimestamp) Next() Datum
  • func (d *DTimestamp) Prev() Datum
  • func (*DTimestamp) ReturnType() Datum
  • func (node *DTimestamp) String() string
  • func (*DTimestamp) Type() string
  • func (d *DTimestamp) TypeCheck(_ *SemaContext, desired Datum) (TypedExpr, error)
  • func (d *DTimestamp) TypeEqual(other Datum) bool
  • func (expr *DTimestamp) Walk(_ Visitor) Expr
• type DTimestampTZ
  • func MakeDTimestampTZ(t time.Time, precision time.Duration) *DTimestampTZ
  • func ParseDTimestampTZ(s string, loc *time.Location, precision time.Duration) (*DTimestampTZ, error)
  • func (d *DTimestampTZ) Compare(other Datum) int
  • func (t *DTimestampTZ) Eval(_ *EvalContext) (Datum, error)
  • func (d *DTimestampTZ) Format(buf *bytes.Buffer, f FmtFlags)
  • func (d *DTimestampTZ) HasNext() bool
  • func (d *DTimestampTZ) HasPrev() bool
  • func (d *DTimestampTZ) IsMax() bool
  • func (d *DTimestampTZ) IsMin() bool
  • func (d *DTimestampTZ) Next() Datum
  • func (d *DTimestampTZ) Prev() Datum
  • func (*DTimestampTZ) ReturnType() Datum
  • func (node *DTimestampTZ) String() string
  • func (d *DTimestampTZ) Type() string
  • func (d *DTimestampTZ) TypeCheck(_ *SemaContext, desired Datum) (TypedExpr, error)
  • func (d *DTimestampTZ) TypeEqual(other Datum) bool
  • func (expr *DTimestampTZ) Walk(_ Visitor) Expr
• type DTuple
  • func (d *DTuple) Compare(other Datum) int
  • func (t *DTuple) Eval(_ *EvalContext) (Datum, error)
  • func (d *DTuple) Format(buf *bytes.Buffer, f FmtFlags)
  • func (d *DTuple) HasNext() bool
  • func (d *DTuple) HasPrev() bool
  • func (*DTuple) IsMax() bool
  • func (*DTuple) IsMin() bool
  • func (d *DTuple) Len() int
  • func (d *DTuple) Less(i, j int) bool
  • func (d *DTuple) Next() Datum
  • func (d *DTuple) Normalize()
  • func (d *DTuple) Prev() Datum
  • func (d *DTuple) ReturnType() Datum
  • func (d *DTuple) SortedDifference(other *DTuple) *DTuple
  • func (node *DTuple) String() string
  • func (d *DTuple) Swap(i, j int)
  • func (*DTuple) Type() string
  • func (d *DTuple) TypeCheck(_ *SemaContext, desired Datum) (TypedExpr, error)
  • func (d *DTuple) TypeEqual(other Datum) bool
  • func (expr *DTuple) Walk(_ Visitor) Expr
• type DateColType
  • func (node *DateColType) Format(buf *bytes.Buffer, f FmtFlags)
  • func (node *DateColType) String() string
• type Datum
• type DecimalColType
  • func (node *DecimalColType) Format(buf *bytes.Buffer, f FmtFlags)
  • func (node *DecimalColType) String() string
• type DefaultVal
  • func (expr DefaultVal) Eval(_ *EvalContext) (Datum, error)
  • func (node DefaultVal) Format(buf *bytes.Buffer, f FmtFlags)
  • func (DefaultVal) ReturnType() Datum
  • func (node DefaultVal) String() string
  • func (expr DefaultVal) TypeCheck(_ *SemaContext, desired Datum) (TypedExpr, error)
  • func (expr DefaultVal) Walk(_ Visitor) Expr
• type Delete
  • func (stmt *Delete) CopyNode() *Delete
  • func (node *Delete) Format(buf *bytes.Buffer, f FmtFlags)
  • func (*Delete) StatementTag() string
  • func (n *Delete) StatementType() StatementType
  • func (n *Delete) String() string
  • func (stmt *Delete) WalkStmt(v Visitor) Statement
• type Direction
  • func (d Direction) String() string
• type DropBehavior
  • func (d DropBehavior) String() string
• type DropDatabase
  • func (node *DropDatabase) Format(buf *bytes.Buffer, f FmtFlags)
  • func (*DropDatabase) StatementTag() string
  • func (*DropDatabase) StatementType() StatementType
  • func (n *DropDatabase) String() string
• type DropIndex
  • func (node *DropIndex) Format(buf *bytes.Buffer, f FmtFlags)
  • func (*DropIndex) StatementTag() string
  • func (*DropIndex) StatementType() StatementType
  • func (n *DropIndex) String() string
• type DropTable
  • func (node *DropTable) Format(buf *bytes.Buffer, f FmtFlags)
  • func (*DropTable) StatementTag() string
  • func (*DropTable) StatementType() StatementType
  • func (n *DropTable) String() string
• type EvalContext
  • func (ctx *EvalContext) GetClusterTimestamp() *DDecimal
  • func (ctx *EvalContext) GetLocation() *time.Location
  • func (ctx *EvalContext) GetStmtTimestamp() *DTimestamp
  • func (ctx *EvalContext) GetTxnTimestamp(precision time.Duration) *DTimestamp
  • func (ctx *EvalContext) NormalizeExpr(typedExpr TypedExpr) (TypedExpr, error)
  • func (ctx *EvalContext) SetClusterTimestamp(ts roachpb.Timestamp)
  • func (ctx *EvalContext) SetStmtTimestamp(ts time.Time)
  • func (ctx *EvalContext) SetTxnTimestamp(ts time.Time)
• type ExistsExpr
  • func (t *ExistsExpr) Eval(ctx *EvalContext) (Datum, error)
  • func (node *ExistsExpr) Format(buf *bytes.Buffer, f FmtFlags)
  • func (ta ExistsExpr) ReturnType() Datum
  • func (node *ExistsExpr) String() string
  • func (expr *ExistsExpr) TypeCheck(ctx *SemaContext, desired Datum) (TypedExpr, error)
  • func (expr *ExistsExpr) Walk(v Visitor) Expr
• type Explain
  • func (stmt *Explain) CopyNode() *Explain
  • func (node *Explain) Format(buf *bytes.Buffer, f FmtFlags)
  • func (*Explain) StatementTag() string
  • func (*Explain) StatementType() StatementType
  • func (n *Explain) String() string
  • func (stmt *Explain) WalkStmt(v Visitor) Statement
• type Expr
  • func ParseExprTraditional(sql string) (Expr, error)
  • func SimpleVisit(expr Expr, preFn SimpleVisitFn) (Expr, error)
  • func WalkExpr(v Visitor, expr Expr) (newExpr Expr, changed bool)
• type Exprs
  • func (node Exprs) Format(buf *bytes.Buffer, f FmtFlags)
  • func (node Exprs) String() string
• type FamilyElem
  • func (node FamilyElem) Format(buf *bytes.Buffer, f FmtFlags)
• type FamilyElemList
  • func (l FamilyElemList) Format(buf *bytes.Buffer, f FmtFlags)
• type FamilyTableDef
  • func (node *FamilyTableDef) Format(buf *bytes.Buffer, f FmtFlags)
• type FloatColType
  • func (node *FloatColType) Format(buf *bytes.Buffer, f FmtFlags)
  • func (node *FloatColType) String() string
• type FmtFlags
• type FuncExpr
  • func (expr *FuncExpr) CopyNode() *FuncExpr
  • func (expr *FuncExpr) Eval(ctx *EvalContext) (Datum, error)
  • func (node *FuncExpr) Format(buf *bytes.Buffer, f FmtFlags)
  • func (ta FuncExpr) ReturnType() Datum
  • func (node *FuncExpr) String() string
  • func (expr *FuncExpr) TypeCheck(ctx *SemaContext, desired Datum) (TypedExpr, error)
  • func (expr *FuncExpr) Walk(v Visitor) Expr
• type Grant
  • func (node *Grant) Format(buf *bytes.Buffer, f FmtFlags)
  • func (*Grant) StatementTag() string
  • func (*Grant) StatementType() StatementType
  • func (n *Grant) String() string
• type GroupBy
  • func (node GroupBy) Format(buf *bytes.Buffer, f FmtFlags)
• type IfExpr
  • func (expr *IfExpr) Eval(ctx *EvalContext) (Datum, error)
  • func (node *IfExpr) Format(buf *bytes.Buffer, f FmtFlags)
  • func (ta IfExpr) ReturnType() Datum
  • func (node *IfExpr) String() string
  • func (expr *IfExpr) TypeCheck(ctx *SemaContext, desired Datum) (TypedExpr, error)
  • func (expr *IfExpr) Walk(v Visitor) Expr
• type IndexElem
  • func (node IndexElem) Format(buf *bytes.Buffer, f FmtFlags)
• type IndexElemList
  • func NameListToIndexElems(lst NameList) IndexElemList
  • func (l IndexElemList) Format(buf *bytes.Buffer, f FmtFlags)
• type IndexHints
  • func (n *IndexHints) Format(buf *bytes.Buffer, f FmtFlags)
• type IndexTableDef
  • func (node *IndexTableDef) Format(buf *bytes.Buffer, f FmtFlags)
• type IndexedVar
  • func (v *IndexedVar) Eval(ctx *EvalContext) (Datum, error)
  • func (v *IndexedVar) Format(buf *bytes.Buffer, f FmtFlags)
  • func (v *IndexedVar) ReturnType() Datum
  • func (node *IndexedVar) String() string
  • func (v *IndexedVar) TypeCheck(_ *SemaContext, desired Datum) (TypedExpr, error)
  • func (*IndexedVar) Variable()
  • func (v *IndexedVar) Walk(_ Visitor) Expr
• type IndexedVarContainer
• type IndexedVarHelper
  • func MakeIndexedVarHelper(container IndexedVarContainer, numVars int) IndexedVarHelper
  • func (h *IndexedVarHelper) IndexedVar(idx int) *IndexedVar
  • func (h *IndexedVarHelper) IndexedVarUsed(idx int) bool
  • func (h *IndexedVarHelper) NumVars() int
• type Indirection
  • func (i Indirection) Format(buf *bytes.Buffer, f FmtFlags)
• type IndirectionElem
• type Insert
  • func (stmt *Insert) CopyNode() *Insert
  • func (node *Insert) DefaultValues() bool
  • func (node *Insert) Format(buf *bytes.Buffer, f FmtFlags)
  • func (*Insert) StatementTag() string
  • func (n *Insert) StatementType() StatementType
  • func (n *Insert) String() string
  • func (stmt *Insert) WalkStmt(v Visitor) Statement
• type IntColType
  • func (node *IntColType) Format(buf *bytes.Buffer, f FmtFlags)
  • func (node *IntColType) IsSerial() bool
  • func (node *IntColType) String() string
• type IntervalColType
  • func (node *IntervalColType) Format(buf *bytes.Buffer, f FmtFlags)
  • func (node *IntervalColType) String() string
• type IsOfTypeExpr
  • func (expr *IsOfTypeExpr) Eval(ctx *EvalContext) (Datum, error)
  • func (node *IsOfTypeExpr) Format(buf *bytes.Buffer, f FmtFlags)
  • func (ta IsOfTypeExpr) ReturnType() Datum
  • func (node *IsOfTypeExpr) String() string
  • func (expr *IsOfTypeExpr) TypeCheck(ctx *SemaContext, desired Datum) (TypedExpr, error)
  • func (expr *IsOfTypeExpr) Walk(v Visitor) Expr
• type IsolationLevel
  • func (i IsolationLevel) String() string
• type JoinCond
• type JoinTableExpr
  • func (node *JoinTableExpr) Format(buf *bytes.Buffer, f FmtFlags)
  • func (node *JoinTableExpr) String() string
• type Limit
  • func (node *Limit) Format(buf *bytes.Buffer, f FmtFlags)
• type Name
  • func (n Name) Format(buf *bytes.Buffer, f FmtFlags)
  • func (node Name) String() string
• type NameIndirection
  • func (n NameIndirection) Format(buf *bytes.Buffer, f FmtFlags)
• type NameList
  • func (l NameList) Format(buf *bytes.Buffer, f FmtFlags)
  • func (list NameList) String() string
• type NodeFormatter
• type NotExpr
  • func NewTypedNotExpr(expr TypedExpr) *NotExpr
  • func (expr *NotExpr) Eval(ctx *EvalContext) (Datum, error)
  • func (node *NotExpr) Format(buf *bytes.Buffer, f FmtFlags)
  • func (ta NotExpr) ReturnType() Datum
  • func (node *NotExpr) String() string
  • func (expr *NotExpr) TypeCheck(ctx *SemaContext, desired Datum) (TypedExpr, error)
  • func (node *NotExpr) TypedInnerExpr() TypedExpr
  • func (expr *NotExpr) Walk(v Visitor) Expr
• type NotNullConstraint
• type NullConstraint
• type NullIfExpr
  • func (expr *NullIfExpr) Eval(ctx *EvalContext) (Datum, error)
  • func (node *NullIfExpr) Format(buf *bytes.Buffer, f FmtFlags)
  • func (ta NullIfExpr) ReturnType() Datum
  • func (node *NullIfExpr) String() string
  • func (expr *NullIfExpr) TypeCheck(ctx *SemaContext, desired Datum) (TypedExpr, error)
  • func (expr *NullIfExpr) Walk(v Visitor) Expr
• type Nullability
• type NumVal
  • func (expr *NumVal) AvailableTypes() []Datum
  • func (expr *NumVal) Format(buf *bytes.Buffer, f FmtFlags)
  • func (expr *NumVal) ResolveAsType(ctx *SemaContext, typ Datum) (Datum, error)
  • func (node *NumVal) String() string
  • func (expr *NumVal) TypeCheck(ctx *SemaContext, desired Datum) (TypedExpr, error)
  • func (expr *NumVal) Walk(_ Visitor) Expr
• type OnConflict
  • func (oc *OnConflict) IsUpsertAlias() bool
• type OnJoinCond
  • func (node *OnJoinCond) Format(buf *bytes.Buffer, f FmtFlags)
• type OrExpr
  • func NewTypedOrExpr(left, right TypedExpr) *OrExpr
  • func (expr *OrExpr) Eval(ctx *EvalContext) (Datum, error)
  • func (node *OrExpr) Format(buf *bytes.Buffer, f FmtFlags)
  • func (ta OrExpr) ReturnType() Datum
  • func (node *OrExpr) String() string
  • func (expr *OrExpr) TypeCheck(ctx *SemaContext, desired Datum) (TypedExpr, error)
  • func (node *OrExpr) TypedLeft() TypedExpr
  • func (node *OrExpr) TypedRight() TypedExpr
  • func (expr *OrExpr) Walk(v Visitor) Expr
• type Order
  • func (node *Order) Format(buf *bytes.Buffer, f FmtFlags)
• type OrderBy
  • func (node OrderBy) Format(buf *bytes.Buffer, f FmtFlags)
• type OverlayExpr
  • func (expr *OverlayExpr) Eval(ctx *EvalContext) (Datum, error)
  • func (node *OverlayExpr) Format(buf *bytes.Buffer, f FmtFlags)
  • func (ta OverlayExpr) ReturnType() Datum
  • func (node *OverlayExpr) String() string
• type ParenExpr
  • func (expr *ParenExpr) Eval(ctx *EvalContext) (Datum, error)
  • func (node *ParenExpr) Format(buf *bytes.Buffer, f FmtFlags)
  • func (ta ParenExpr) ReturnType() Datum
  • func (node *ParenExpr) String() string
  • func (expr *ParenExpr) TypeCheck(ctx *SemaContext, desired Datum) (TypedExpr, error)
  • func (node *ParenExpr) TypedInnerExpr() TypedExpr
  • func (expr *ParenExpr) Walk(v Visitor) Expr
• type ParenSelect
  • func (node *ParenSelect) Format(buf *bytes.Buffer, f FmtFlags)
  • func (*ParenSelect) StatementTag() string
  • func (*ParenSelect) StatementType() StatementType
  • func (n *ParenSelect) String() string
  • func (stmt *ParenSelect) WalkStmt(v Visitor) Statement
• type ParenTableExpr
  • func (node *ParenTableExpr) Format(buf *bytes.Buffer, f FmtFlags)
  • func (node *ParenTableExpr) String() string
• type Parser
  • func (p *Parser) NormalizeExpr(ctx *EvalContext, typedExpr TypedExpr) (TypedExpr, error)
  • func (p *Parser) Parse(sql string, syntax Syntax) (stmts StatementList, err error)
• type Placeholder
  • func (node Placeholder) Format(buf *bytes.Buffer, f FmtFlags)
  • func (node Placeholder) String() string
  • func (expr Placeholder) TypeCheck(ctx *SemaContext, desired Datum) (TypedExpr, error)
  • func (Placeholder) Variable()
  • func (expr Placeholder) Walk(_ Visitor) Expr
• type PlaceholderInfo
  • func NewPlaceholderInfo() *PlaceholderInfo
  • func (p *PlaceholderInfo) Assign(src *PlaceholderInfo)
  • func (p *PlaceholderInfo) Clear()
  • func (p *PlaceholderInfo) IsUnresolvedPlaceholder(expr Expr) bool
  • func (p *PlaceholderInfo) SetType(name string, typ Datum) error
  • func (p *PlaceholderInfo) SetTypes(src PlaceholderTypes)
  • func (p *PlaceholderInfo) SetValue(name string, val Datum)
  • func (p *PlaceholderInfo) Type(name string) (Datum, bool)
  • func (p *PlaceholderInfo) Value(name string) (Datum, bool)
• type PlaceholderTypes
  • func (p PlaceholderTypes) ProcessPlaceholderAnnotations(stmt Statement) error
• type PrimaryKeyConstraint
• type QualifiedName
  • func StarExpr() *QualifiedName
  • func (node *QualifiedName) ClearString()
  • func (node *QualifiedName) Column() string
  • func (node *QualifiedName) Database() string
  • func (expr *QualifiedName) Eval(ctx *EvalContext) (Datum, error)
  • func (node *QualifiedName) Format(buf *bytes.Buffer, f FmtFlags)
  • func (node *QualifiedName) IsStar() bool
  • func (node *QualifiedName) NormalizeColumnName() error
  • func (node *QualifiedName) NormalizeTableName(database string) error
  • func (node *QualifiedName) QualifyWithDatabase(database string) error
  • func (node *QualifiedName) ReturnType() Datum
  • func (node *QualifiedName) String() string
  • func (node *QualifiedName) Table() string
  • func (expr *QualifiedName) TypeCheck(_ *SemaContext, desired Datum) (TypedExpr, error)
  • func (*QualifiedName) Variable()
  • func (expr *QualifiedName) Walk(_ Visitor) Expr
• type QualifiedNames
  • func (n QualifiedNames) Format(buf *bytes.Buffer, f FmtFlags)
• type QueryArguments
• type RangeCond
  • func (expr *RangeCond) Eval(_ *EvalContext) (Datum, error)
  • func (node *RangeCond) Format(buf *bytes.Buffer, f FmtFlags)
  • func (ta RangeCond) ReturnType() Datum
  • func (node *RangeCond) String() string
  • func (expr *RangeCond) TypeCheck(ctx *SemaContext, desired Datum) (TypedExpr, error)
  • func (node *RangeCond) TypedFrom() TypedExpr
  • func (node *RangeCond) TypedLeft() TypedExpr
  • func (node *RangeCond) TypedTo() TypedExpr
  • func (expr *RangeCond) Walk(v Visitor) Expr
• type RegexpCache
  • func NewRegexpCache(size int) *RegexpCache
  • func (rc *RegexpCache) GetRegexp(key regexpCacheKey) (*regexp.Regexp, error)
  • func (rc *RegexpCache) Len() int
• type ReleaseSavepoint
  • func (node *ReleaseSavepoint) Format(buf *bytes.Buffer, f FmtFlags)
  • func (*ReleaseSavepoint) StatementTag() string
  • func (*ReleaseSavepoint) StatementType() StatementType
  • func (n *ReleaseSavepoint) String() string
• type RenameColumn
  • func (node *RenameColumn) Format(buf *bytes.Buffer, f FmtFlags)
  • func (*RenameColumn) StatementTag() string
  • func (*RenameColumn) StatementType() StatementType
  • func (n *RenameColumn) String() string
• type RenameDatabase
  • func (node *RenameDatabase) Format(buf *bytes.Buffer, f FmtFlags)
  • func (*RenameDatabase) StatementTag() string
  • func (*RenameDatabase) StatementType() StatementType
  • func (n *RenameDatabase) String() string
• type RenameIndex
  • func (node *RenameIndex) Format(buf *bytes.Buffer, f FmtFlags)
  • func (*RenameIndex) StatementTag() string
  • func (*RenameIndex) StatementType() StatementType
  • func (n *RenameIndex) String() string
• type RenameTable
  • func (node *RenameTable) Format(buf *bytes.Buffer, f FmtFlags)
  • func (*RenameTable) StatementTag() string
  • func (*RenameTable) StatementType() StatementType
  • func (n *RenameTable) String() string
• type ReturningExprs
  • func (r ReturningExprs) Format(buf *bytes.Buffer, f FmtFlags)
  • func (r ReturningExprs) StatementType() StatementType
• type Revoke
  • func (node *Revoke) Format(buf *bytes.Buffer, f FmtFlags)
  • func (*Revoke) StatementTag() string
  • func (*Revoke) StatementType() StatementType
  • func (n *Revoke) String() string
• type RollbackToSavepoint
  • func (node *RollbackToSavepoint) Format(buf *bytes.Buffer, f FmtFlags)
  • func (*RollbackToSavepoint) StatementTag() string
  • func (*RollbackToSavepoint) StatementType() StatementType
  • func (n *RollbackToSavepoint) String() string
• type RollbackTransaction
  • func (node *RollbackTransaction) Format(buf *bytes.Buffer, f FmtFlags)
  • func (*RollbackTransaction) StatementTag() string
  • func (*RollbackTransaction) StatementType() StatementType
  • func (n *RollbackTransaction) String() string
• type Savepoint
  • func (node *Savepoint) Format(buf *bytes.Buffer, f FmtFlags)
  • func (*Savepoint) StatementTag() string
  • func (*Savepoint) StatementType() StatementType
  • func (n *Savepoint) String() string
• type Select
  • func (stmt *Select) CopyNode() *Select
  • func (node *Select) Format(buf *bytes.Buffer, f FmtFlags)
  • func (*Select) StatementTag() string
  • func (*Select) StatementType() StatementType
  • func (n *Select) String() string
  • func (stmt *Select) WalkStmt(v Visitor) Statement
• type SelectClause
  • func (stmt *SelectClause) CopyNode() *SelectClause
  • func (node *SelectClause) Format(buf *bytes.Buffer, f FmtFlags)
  • func (*SelectClause) StatementTag() string
  • func (*SelectClause) StatementType() StatementType
  • func (n *SelectClause) String() string
  • func (stmt *SelectClause) WalkStmt(v Visitor) Statement
• type SelectExpr
  • func (node SelectExpr) Format(buf *bytes.Buffer, f FmtFlags)
• type SelectExprs
  • func (node SelectExprs) Format(buf *bytes.Buffer, f FmtFlags)
• type SelectStatement
• type SemaContext
  • func MakeSemaContext() SemaContext
• type Set
  • func (stmt *Set) CopyNode() *Set
  • func (node *Set) Format(buf *bytes.Buffer, f FmtFlags)
  • func (*Set) StatementTag() string
  • func (*Set) StatementType() StatementType
  • func (n *Set) String() string
  • func (stmt *Set) WalkStmt(v Visitor) Statement
• type SetDefaultIsolation
  • func (node *SetDefaultIsolation) Format(buf *bytes.Buffer, f FmtFlags)
  • func (*SetDefaultIsolation) StatementTag() string
  • func (*SetDefaultIsolation) StatementType() StatementType
  • func (n *SetDefaultIsolation) String() string
• type SetTimeZone
  • func (node *SetTimeZone) Format(buf *bytes.Buffer, f FmtFlags)
  • func (*SetTimeZone) StatementTag() string
  • func (*SetTimeZone) StatementType() StatementType
  • func (n *SetTimeZone) String() string
• type SetTransaction
  • func (node *SetTransaction) Format(buf *bytes.Buffer, f FmtFlags)
  • func (*SetTransaction) StatementTag() string
  • func (*SetTransaction) StatementType() StatementType
  • func (n *SetTransaction) String() string
• type Show
  • func (node *Show) Format(buf *bytes.Buffer, f FmtFlags)
  • func (*Show) StatementTag() string
  • func (*Show) StatementType() StatementType
  • func (n *Show) String() string
• type ShowColumns
  • func (node *ShowColumns) Format(buf *bytes.Buffer, f FmtFlags)
  • func (*ShowColumns) StatementTag() string
  • func (*ShowColumns) StatementType() StatementType
  • func (n *ShowColumns) String() string
• type ShowCreateTable
  • func (node *ShowCreateTable) Format(buf *bytes.Buffer, f FmtFlags)
  • func (*ShowCreateTable) StatementTag() string
  • func (*ShowCreateTable) StatementType() StatementType
  • func (n *ShowCreateTable) String() string
• type ShowDatabases
  • func (node *ShowDatabases) Format(buf *bytes.Buffer, f FmtFlags)
  • func (*ShowDatabases) StatementTag() string
  • func (*ShowDatabases) StatementType() StatementType
  • func (n *ShowDatabases) String() string
• type ShowGrants
  • func (node *ShowGrants) Format(buf *bytes.Buffer, f FmtFlags)
  • func (*ShowGrants) StatementTag() string
  • func (*ShowGrants) StatementType() StatementType
  • func (n *ShowGrants) String() string
• type ShowIndex
  • func (node *ShowIndex) Format(buf *bytes.Buffer, f FmtFlags)
  • func (*ShowIndex) StatementTag() string
  • func (*ShowIndex) StatementType() StatementType
  • func (n *ShowIndex) String() string
• type ShowTables
  • func (node *ShowTables) Format(buf *bytes.Buffer, f FmtFlags)
  • func (*ShowTables) StatementTag() string
  • func (*ShowTables) StatementType() StatementType
  • func (n *ShowTables) String() string
• type SimpleTableExpr
• type SimpleVisitFn
• type SingleType
• type StarIndirection
  • func (s StarIndirection) Format(buf *bytes.Buffer, f FmtFlags)
• type Statement
  • func ParseOne(sql string, syntax Syntax) (Statement, error)
  • func ParseOneTraditional(sql string) (Statement, error)
  • func WalkStmt(v Visitor, stmt Statement) (newStmt Statement, changed bool)
• type StatementList
  • func (l StatementList) Format(buf *bytes.Buffer, f FmtFlags)
  • func (l StatementList) String() string
• type StatementType
• type StrVal
  • func (expr *StrVal) AvailableTypes() []Datum
  • func (expr *StrVal) Format(buf *bytes.Buffer, f FmtFlags)
  • func (expr *StrVal) ResolveAsType(ctx *SemaContext, typ Datum) (Datum, error)
  • func (node *StrVal) String() string
  • func (expr *StrVal) TypeCheck(ctx *SemaContext, desired Datum) (TypedExpr, error)
  • func (expr *StrVal) Walk(_ Visitor) Expr
• type StringColType
  • func (node *StringColType) Format(buf *bytes.Buffer, f FmtFlags)
  • func (node *StringColType) String() string
• type Subquery
  • func (expr *Subquery) Eval(_ *EvalContext) (Datum, error)
  • func (node *Subquery) Format(buf *bytes.Buffer, f FmtFlags)
  • func (node *Subquery) ReturnType() Datum
  • func (node *Subquery) String() string
  • func (expr *Subquery) TypeCheck(_ *SemaContext, desired Datum) (TypedExpr, error)
  • func (*Subquery) Variable()
  • func (expr *Subquery) Walk(v Visitor) Expr
• type Syntax
  • func (i Syntax) String() string
• type TableDef
• type TableDefs
  • func (node TableDefs) Format(buf *bytes.Buffer, f FmtFlags)
• type TableExpr
• type TableExprs
  • func (node TableExprs) Format(buf *bytes.Buffer, f FmtFlags)
• type TableNameWithIndex
  • func (n *TableNameWithIndex) Format(buf *bytes.Buffer, f FmtFlags)
• type TableNameWithIndexList
  • func (n TableNameWithIndexList) Format(buf *bytes.Buffer, f FmtFlags)
• type TargetList
  • func (tl TargetList) Format(buf *bytes.Buffer, f FmtFlags)
• type TargetType
  • func (tt TargetType) String() string
• type TimestampColType
  • func (node *TimestampColType) Format(buf *bytes.Buffer, f FmtFlags)
  • func (node *TimestampColType) String() string
• type TimestampTZColType
  • func (node *TimestampTZColType) Format(buf *bytes.Buffer, f FmtFlags)
  • func (node *TimestampTZColType) String() string
• type Truncate
  • func (node *Truncate) Format(buf *bytes.Buffer, f FmtFlags)
  • func (*Truncate) StatementTag() string
  • func (*Truncate) StatementType() StatementType
  • func (n *Truncate) String() string
• type Tuple
  • func (t *Tuple) Eval(ctx *EvalContext) (Datum, error)
  • func (node *Tuple) Format(buf *bytes.Buffer, f FmtFlags)
  • func (node *Tuple) ReturnType() Datum
  • func (node *Tuple) String() string
  • func (expr *Tuple) TypeCheck(ctx *SemaContext, desired Datum) (TypedExpr, error)
  • func (expr *Tuple) Walk(v Visitor) Expr
• type TypedExpr
  • func TypeCheck(expr Expr, ctx *SemaContext, desired Datum) (TypedExpr, error)
  • func TypeCheckAndRequire(expr Expr, ctx *SemaContext, required Datum, op string) (TypedExpr, error)
  • func TypeConstants(expr Expr) (TypedExpr, error)
• type TypedExprs
  • func (node TypedExprs) String() string
• type UnaryExpr
  • func (expr *UnaryExpr) Eval(ctx *EvalContext) (Datum, error)
  • func (node *UnaryExpr) Format(buf *bytes.Buffer, f FmtFlags)
  • func (ta UnaryExpr) ReturnType() Datum
  • func (node *UnaryExpr) String() string
  • func (expr *UnaryExpr) TypeCheck(ctx *SemaContext, desired Datum) (TypedExpr, error)
  • func (expr *UnaryExpr) Walk(v Visitor) Expr
• type UnaryOp
• type UnaryOperator
  • func (i UnaryOperator) String() string
• type UnionClause
  • func (node *UnionClause) Format(buf *bytes.Buffer, f FmtFlags)
  • func (*UnionClause) StatementTag() string
  • func (*UnionClause) StatementType() StatementType
  • func (n *UnionClause) String() string
• type UnionType
  • func (i UnionType) String() string
• type UniqueConstraint
• type UniqueConstraintTableDef
  • func (node *UniqueConstraintTableDef) Format(buf *bytes.Buffer, f FmtFlags)
• type Update
  • func (stmt *Update) CopyNode() *Update
  • func (node *Update) Format(buf *bytes.Buffer, f FmtFlags)
  • func (*Update) StatementTag() string
  • func (n *Update) StatementType() StatementType
  • func (n *Update) String() string
  • func (stmt *Update) WalkStmt(v Visitor) Statement
• type UpdateExpr
  • func (node *UpdateExpr) Format(buf *bytes.Buffer, f FmtFlags)
• type UpdateExprs
  • func (node UpdateExprs) Format(buf *bytes.Buffer, f FmtFlags)
• type UserPriority
  • func (up UserPriority) String() string
• type UsingJoinCond
  • func (node *UsingJoinCond) Format(buf *bytes.Buffer, f FmtFlags)
• type ValuesClause
  • func (node *ValuesClause) Format(buf *bytes.Buffer, f FmtFlags)
  • func (ValuesClause) StatementTag() string
  • func (ValuesClause) StatementType() StatementType
  • func (n *ValuesClause) String() string
  • func (stmt *ValuesClause) WalkStmt(v Visitor) Statement
• type VariableExpr
• type VariadicType
• type Visitor
• type WalkableStmt
• type When
  • func (node *When) Format(buf *bytes.Buffer, f FmtFlags)
• type Where
  • func (node *Where) Format(buf *bytes.Buffer, f FmtFlags)

Constants

const (
	Distinct funcType
	All
)

FuncExpr.Type

const ACTION = 57358

const ADD = 57359

const ALL = 57360

const ALTER = 57361

const ANALYSE = 57362

const ANALYZE = 57363

const AND = 57364

const ANY = 57365

const ARRAY = 57366

const AS = 57367

const ASC = 57368

const ASYMMETRIC = 57369

const AT = 57370

const BCONST = 57348

const BEGIN = 57371

const BETWEEN = 57372

const BIGINT = 57373

const BIT = 57374

const BLOB = 57375

const BOOL = 57376

const BOOLEAN = 57377

const BOTH = 57378

const BY = 57379

const BYTEA = 57380

const BYTES = 57381

const CASCADE = 57382

const CASE = 57383

const CAST = 57384

const CHAR = 57385

const CHARACTER = 57386

const CHARACTERISTICS = 57387

const CHECK = 57388

const COALESCE = 57389

const COLLATE = 57390

const COLLATION = 57391

const COLUMN = 57392

const COLUMNS = 57393

const COMMIT = 57394

const COMMITTED = 57395

const CONCAT = 57396

const CONFLICT = 57397

const CONSTRAINT = 57398

const COVERING = 57399

const CREATE = 57400

const CROSS = 57401

const CUBE = 57402

const CURRENT = 57403

const CURRENT_CATALOG = 57404

const CURRENT_DATE = 57405

const CURRENT_ROLE = 57406

const CURRENT_TIME = 57407

const CURRENT_TIMESTAMP = 57408

const CURRENT_USER = 57409

const CYCLE = 57410

const DATA = 57411

const DATABASE = 57412

const DATABASES = 57413

const DATE = 57414

const DAY = 57415

const DEC = 57416

const DECIMAL = 57417

const DEFAULT = 57418

const DEFERRABLE = 57419

const DELETE = 57420

const DESC = 57421

const DISTINCT = 57422

const DO = 57423

const DOT_DOT = 57353

const DOUBLE = 57424

const DROP = 57425

const ELSE = 57426

const ENCODING = 57427

const END = 57428

const ERROR = 57357

const ESCAPE = 57429

const EXCEPT = 57430

const EXISTS = 57431

const EXPLAIN = 57432

const EXTRACT = 57433

const FALSE = 57434

const FAMILY = 57435

const FCONST = 57350

const FETCH = 57436

const FILTER = 57437

const FIRST = 57438

const FLOAT = 57439

const FLOORDIV = 57440

const FOLLOWING = 57441

const FOR = 57442

const FORCE_INDEX = 57443

const FOREIGN = 57444

const FROM = 57445

const FULL = 57446

const GRANT = 57447

const GRANTS = 57448

const GREATER_EQUALS = 57355

const GREATEST = 57449

const GROUP = 57450

const GROUPING = 57451

const HAVING = 57452

const HIGH = 57453

const HOUR = 57454

const ICONST = 57349

const IDENT = 57346

const IF = 57455

const IFNULL = 57456

const IN = 57457

const INDEX = 57458

const INDEXES = 57459

const INITIALLY = 57460

const INNER = 57461

const INSERT = 57462

const INT = 57463

const INT64 = 57464

const INTEGER = 57465

const INTERSECT = 57466

const INTERVAL = 57467

const INTO = 57468

const IS = 57469

const ISOLATION = 57470

const JOIN = 57471

const KEY = 57472

const KEYS = 57473

const LATERAL = 57474

const LEADING = 57475

const LEAST = 57476

const LEFT = 57477

const LESS_EQUALS = 57354

const LEVEL = 57478

const LIKE = 57479

const LIMIT = 57480

const LOCAL = 57481

const LOCALTIME = 57482

const LOCALTIMESTAMP = 57483

const LOW = 57484

const LSHIFT = 57485

const MATCH = 57486

const MINUTE = 57487

const MONTH = 57488

const NAME = 57489

const NAMES = 57490

const NATURAL = 57491

const NEXT = 57492

const NO = 57493

const NORMAL = 57495

const NOT = 57496

const NOTHING = 57497

const NOT_EQUALS = 57356

const NOT_LA = 57602

const NO_INDEX_JOIN = 57494

const NULL = 57498

const NULLIF = 57499

const NULLS = 57500

const NUMERIC = 57501

const OF = 57502

const OFF = 57503

const OFFSET = 57504

const ON = 57505

const ONLY = 57506

const OR = 57507

const ORDER = 57508

const ORDINALITY = 57509

const OUT = 57510

const OUTER = 57511

const OVER = 57512

const OVERLAPS = 57513

const OVERLAY = 57514

const PARTIAL = 57515

const PARTITION = 57516

const PLACEHOLDER = 57351

const PLACING = 57517

const POSITION = 57518

const POSTFIXOP = 57604

const PRECEDING = 57519

const PRECISION = 57520

const PRIMARY = 57521

const PRIORITY = 57522

const RANGE = 57523

const READ = 57524

const REAL = 57525

const RECURSIVE = 57526

const REF = 57527

const REFERENCES = 57528

const RELEASE = 57531

const RENAME = 57529

const REPEATABLE = 57530

const RESTRICT = 57532

const RETURNING = 57533

const REVOKE = 57534

const RIGHT = 57535

const ROLLBACK = 57536

const ROLLUP = 57537

const ROW = 57538

const ROWS = 57539

const RSHIFT = 57540

const RestartSavepointName string = "COCKROACH_RESTART"

RestartSavepointName is the only savepoint name that we accept, modulo capitalization.

const SAVEPOINT = 57541

const SCONST = 57347

const SEARCH = 57542

const SECOND = 57543

const SELECT = 57544

const SERIAL = 57545

const SERIALIZABLE = 57546

const SESSION = 57547

const SESSION_USER = 57548

const SET = 57549

const SHOW = 57550

const SIMILAR = 57551

const SIMPLE = 57552

const SMALLINT = 57553

const SNAPSHOT = 57554

const SOME = 57555

const SQL = 57556

const START = 57557

const STORING = 57560

const STRICT = 57558

const STRING = 57559

const SUBSTRING = 57561

const SYMMETRIC = 57562

const TABLE = 57563

const TABLES = 57564

const TEXT = 57565

const THEN = 57566

const TIME = 57567

const TIMESTAMP = 57568

const TIMESTAMPTZ = 57569

const TO = 57570

const TRAILING = 57571

const TRANSACTION = 57572

const TREAT = 57573

const TRIM = 57574

const TRUE = 57575

const TRUNCATE = 57576

const TYPE = 57577

const TYPECAST = 57352

const UMINUS = 57605

const UNBOUNDED = 57578

const UNCOMMITTED = 57579

const UNION = 57580

const UNIQUE = 57581

const UNKNOWN = 57582

const UPDATE = 57583

const UPSERT = 57584

const USER = 57585

const USING = 57586

const VALID = 57587

const VALIDATE = 57588

const VALUE = 57589

const VALUES = 57590

const VARCHAR = 57591

const VARIADIC = 57592

const VARYING = 57593

const WHEN = 57594

const WHERE = 57595

const WINDOW = 57596

const WITH = 57597

const WITHIN = 57598

const WITHOUT = 57599

const WITH_LA = 57603

const YEAR = 57600

const ZONE = 57601

Variables

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{}
)

var BinOps = map[BinaryOperator]binOpOverload{
	Bitand: {
		BinOp{
			LeftType:   TypeInt,
			RightType:  TypeInt,
			ReturnType: TypeInt,
			// contains filtered or unexported fields
		},
	},

	Bitor: {
		BinOp{
			LeftType:   TypeInt,
			RightType:  TypeInt,
			ReturnType: TypeInt,
			// contains filtered or unexported fields
		},
	},

	Bitxor: {
		BinOp{
			LeftType:   TypeInt,
			RightType:  TypeInt,
			ReturnType: TypeInt,
			// contains filtered or unexported fields
		},
	},

	Plus: {
		BinOp{
			LeftType:   TypeInt,
			RightType:  TypeInt,
			ReturnType: TypeInt,
			// contains filtered or unexported fields
		},
		BinOp{
			LeftType:   TypeFloat,
			RightType:  TypeFloat,
			ReturnType: TypeFloat,
			// contains filtered or unexported fields
		},
		BinOp{
			LeftType:   TypeDecimal,
			RightType:  TypeDecimal,
			ReturnType: TypeDecimal,
			// contains filtered or unexported fields
		},
		BinOp{
			LeftType:   TypeDate,
			RightType:  TypeInt,
			ReturnType: TypeDate,
			// contains filtered or unexported fields
		},
		BinOp{
			LeftType:   TypeInt,
			RightType:  TypeDate,
			ReturnType: TypeDate,
			// contains filtered or unexported fields
		},
		BinOp{
			LeftType:   TypeTimestamp,
			RightType:  TypeInterval,
			ReturnType: TypeTimestamp,
			// contains filtered or unexported fields
		},
		BinOp{
			LeftType:   TypeInterval,
			RightType:  TypeTimestamp,
			ReturnType: TypeTimestamp,
			// contains filtered or unexported fields
		},
		BinOp{
			LeftType:   TypeTimestampTZ,
			RightType:  TypeInterval,
			ReturnType: TypeTimestampTZ,
			// contains filtered or unexported fields
		},
		BinOp{
			LeftType:   TypeInterval,
			RightType:  TypeTimestampTZ,
			ReturnType: TypeTimestampTZ,
			// contains filtered or unexported fields
		},
		BinOp{
			LeftType:   TypeInterval,
			RightType:  TypeInterval,
			ReturnType: TypeInterval,
			// contains filtered or unexported fields
		},
	},

	Minus: {
		BinOp{
			LeftType:   TypeInt,
			RightType:  TypeInt,
			ReturnType: TypeInt,
			// contains filtered or unexported fields
		},
		BinOp{
			LeftType:   TypeFloat,
			RightType:  TypeFloat,
			ReturnType: TypeFloat,
			// contains filtered or unexported fields
		},
		BinOp{
			LeftType:   TypeDecimal,
			RightType:  TypeDecimal,
			ReturnType: TypeDecimal,
			// contains filtered or unexported fields
		},
		BinOp{
			LeftType:   TypeDate,
			RightType:  TypeInt,
			ReturnType: TypeDate,
			// contains filtered or unexported fields
		},
		BinOp{
			LeftType:   TypeDate,
			RightType:  TypeDate,
			ReturnType: TypeInt,
			// contains filtered or unexported fields
		},
		BinOp{
			LeftType:   TypeTimestamp,
			RightType:  TypeTimestamp,
			ReturnType: TypeInterval,
			// contains filtered or unexported fields
		},
		BinOp{
			LeftType:   TypeTimestampTZ,
			RightType:  TypeTimestampTZ,
			ReturnType: TypeInterval,
			// contains filtered or unexported fields
		},
		BinOp{
			LeftType:   TypeTimestamp,
			RightType:  TypeInterval,
			ReturnType: TypeTimestamp,
			// contains filtered or unexported fields
		},
		BinOp{
			LeftType:   TypeTimestampTZ,
			RightType:  TypeInterval,
			ReturnType: TypeTimestampTZ,
			// contains filtered or unexported fields
		},
		BinOp{
			LeftType:   TypeInterval,
			RightType:  TypeInterval,
			ReturnType: TypeInterval,
			// contains filtered or unexported fields
		},
	},

	Mult: {
		BinOp{
			LeftType:   TypeInt,
			RightType:  TypeInt,
			ReturnType: TypeInt,
			// contains filtered or unexported fields
		},
		BinOp{
			LeftType:   TypeFloat,
			RightType:  TypeFloat,
			ReturnType: TypeFloat,
			// contains filtered or unexported fields
		},

		BinOp{
			LeftType:   TypeDecimal,
			RightType:  TypeInt,
			ReturnType: TypeDecimal,
			// contains filtered or unexported fields
		},
		BinOp{
			LeftType:   TypeInt,
			RightType:  TypeDecimal,
			ReturnType: TypeDecimal,
			// contains filtered or unexported fields
		},
		BinOp{
			LeftType:   TypeDecimal,
			RightType:  TypeDecimal,
			ReturnType: TypeDecimal,
			// contains filtered or unexported fields
		},
		BinOp{
			LeftType:   TypeInt,
			RightType:  TypeInterval,
			ReturnType: TypeInterval,
			// contains filtered or unexported fields
		},
		BinOp{
			LeftType:   TypeInterval,
			RightType:  TypeInt,
			ReturnType: TypeInterval,
			// contains filtered or unexported fields
		},
	},

	Div: {
		BinOp{
			LeftType:   TypeInt,
			RightType:  TypeInt,
			ReturnType: TypeDecimal,
			// contains filtered or unexported fields
		},
		BinOp{
			LeftType:   TypeFloat,
			RightType:  TypeFloat,
			ReturnType: TypeFloat,
			// contains filtered or unexported fields
		},
		BinOp{
			LeftType:   TypeDecimal,
			RightType:  TypeDecimal,
			ReturnType: TypeDecimal,
			// contains filtered or unexported fields
		},
		BinOp{
			LeftType:   TypeInterval,
			RightType:  TypeInt,
			ReturnType: TypeInterval,
			// contains filtered or unexported fields
		},
	},

	FloorDiv: {
		BinOp{
			LeftType:   TypeInt,
			RightType:  TypeInt,
			ReturnType: TypeInt,
			// contains filtered or unexported fields
		},
		BinOp{
			LeftType:   TypeFloat,
			RightType:  TypeFloat,
			ReturnType: TypeFloat,
			// contains filtered or unexported fields
		},
		BinOp{
			LeftType:   TypeDecimal,
			RightType:  TypeDecimal,
			ReturnType: TypeDecimal,
			// contains filtered or unexported fields
		},
	},

	Mod: {
		BinOp{
			LeftType:   TypeInt,
			RightType:  TypeInt,
			ReturnType: TypeInt,
			// contains filtered or unexported fields
		},
		BinOp{
			LeftType:   TypeFloat,
			RightType:  TypeFloat,
			ReturnType: TypeFloat,
			// contains filtered or unexported fields
		},
		BinOp{
			LeftType:   TypeDecimal,
			RightType:  TypeDecimal,
			ReturnType: TypeDecimal,
			// contains filtered or unexported fields
		},
	},

	Concat: {
		BinOp{
			LeftType:   TypeString,
			RightType:  TypeString,
			ReturnType: TypeString,
			// contains filtered or unexported fields
		},
		BinOp{
			LeftType:   TypeBytes,
			RightType:  TypeBytes,
			ReturnType: TypeBytes,
			// contains filtered or unexported fields
		},
	},

	LShift: {
		BinOp{
			LeftType:   TypeInt,
			RightType:  TypeInt,
			ReturnType: TypeInt,
			// contains filtered or unexported fields
		},
	},

	RShift: {
		BinOp{
			LeftType:   TypeInt,
			RightType:  TypeInt,
			ReturnType: TypeInt,
			// contains filtered or unexported fields
		},
	},
}

BinOps contains the binary operations indexed by operation type.

var Builtins = map[string][]Builtin{

	"length": {
		stringBuiltin1(func(s string) (Datum, error) {
			return NewDInt(DInt(utf8.RuneCountInString(s))), nil
		}, TypeInt),
		bytesBuiltin1(func(s string) (Datum, error) {
			return NewDInt(DInt(len(s))), nil
		}, TypeInt),
	},

	"octet_length": {
		stringBuiltin1(func(s string) (Datum, error) {
			return NewDInt(DInt(len(s))), nil
		}, TypeInt),
		bytesBuiltin1(func(s string) (Datum, error) {
			return NewDInt(DInt(len(s))), nil
		}, TypeInt),
	},

	"lower": {stringBuiltin1(func(s string) (Datum, error) {
		return NewDString(strings.ToLower(s)), nil
	}, TypeString)},

	"upper": {stringBuiltin1(func(s string) (Datum, error) {
		return NewDString(strings.ToUpper(s)), nil
	}, TypeString)},

	"substr":    substringImpls,
	"substring": substringImpls,

	"concat": {
		Builtin{
			Types:      VariadicType{TypeString},
			ReturnType: TypeString,
			// contains filtered or unexported fields
		},
	},

	"concat_ws": {
		Builtin{
			Types:      VariadicType{TypeString},
			ReturnType: TypeString,
			// contains filtered or unexported fields
		},
	},

	"split_part": {
		Builtin{
			Types:      ArgTypes{TypeString, TypeString, TypeInt},
			ReturnType: TypeString,
			// contains filtered or unexported fields
		},
	},

	"repeat": {
		Builtin{
			Types:      ArgTypes{TypeString, TypeInt},
			ReturnType: TypeString,
			// contains filtered or unexported fields
		},
	},

	"ascii": {stringBuiltin1(func(s string) (Datum, error) {
		for _, ch := range s {
			return NewDInt(DInt(ch)), nil
		}
		return nil, errEmptyInputString
	}, TypeInt)},

	"md5": {stringBuiltin1(func(s string) (Datum, error) {
		return NewDString(fmt.Sprintf("%x", md5.Sum([]byte(s)))), nil
	}, TypeString)},

	"sha1": {stringBuiltin1(func(s string) (Datum, error) {
		return NewDString(fmt.Sprintf("%x", sha1.Sum([]byte(s)))), nil
	}, TypeString)},

	"sha256": {stringBuiltin1(func(s string) (Datum, error) {
		return NewDString(fmt.Sprintf("%x", sha256.Sum256([]byte(s)))), nil
	}, TypeString)},

	"to_hex": {
		Builtin{
			Types:      ArgTypes{TypeInt},
			ReturnType: TypeString,
			// contains filtered or unexported fields
		},
	},

	"strpos": {stringBuiltin2(func(s, substring string) (Datum, error) {
		index := strings.Index(s, substring)
		if index < 0 {
			return NewDInt(0), nil
		}

		return NewDInt(DInt(utf8.RuneCountInString(s[:index]) + 1)), nil
	}, TypeInt)},

	"overlay": {
		Builtin{
			Types:      ArgTypes{TypeString, TypeString, TypeInt},
			ReturnType: TypeString,
			// contains filtered or unexported fields
		},
		Builtin{
			Types:      ArgTypes{TypeString, TypeString, TypeInt, TypeInt},
			ReturnType: TypeString,
			// contains filtered or unexported fields
		},
	},

	"btrim": {
		stringBuiltin2(func(s, chars string) (Datum, error) {
			return NewDString(strings.Trim(s, chars)), nil
		}, TypeString),
		stringBuiltin1(func(s string) (Datum, error) {
			return NewDString(strings.TrimSpace(s)), nil
		}, TypeString),
	},

	"ltrim": {
		stringBuiltin2(func(s, chars string) (Datum, error) {
			return NewDString(strings.TrimLeft(s, chars)), nil
		}, TypeString),
		stringBuiltin1(func(s string) (Datum, error) {
			return NewDString(strings.TrimLeftFunc(s, unicode.IsSpace)), nil
		}, TypeString),
	},

	"rtrim": {
		stringBuiltin2(func(s, chars string) (Datum, error) {
			return NewDString(strings.TrimRight(s, chars)), nil
		}, TypeString),
		stringBuiltin1(func(s string) (Datum, error) {
			return NewDString(strings.TrimRightFunc(s, unicode.IsSpace)), nil
		}, TypeString),
	},

	"reverse": {stringBuiltin1(func(s string) (Datum, error) {
		runes := []rune(s)
		for i, j := 0, len(runes)-1; i < j; i, j = i+1, j-1 {
			runes[i], runes[j] = runes[j], runes[i]
		}
		return NewDString(string(runes)), nil
	}, TypeString)},

	"replace": {stringBuiltin3(func(s, from, to string) (Datum, error) {
		return NewDString(strings.Replace(s, from, to, -1)), nil
	}, TypeString)},

	"translate": {stringBuiltin3(func(s, from, to string) (Datum, error) {
		const deletionRune = utf8.MaxRune + 1
		translation := make(map[rune]rune, len(from))
		for _, fromRune := range from {
			toRune, size := utf8.DecodeRuneInString(to)
			if toRune == utf8.RuneError {
				toRune = deletionRune
			} else {
				to = to[size:]
			}
			translation[fromRune] = toRune
		}

		runes := make([]rune, 0, len(s))
		for _, c := range s {
			if t, ok := translation[c]; ok {
				if t != deletionRune {
					runes = append(runes, t)
				}
			} else {
				runes = append(runes, c)
			}
		}
		return NewDString(string(runes)), nil
	}, TypeString)},

	"regexp_extract": {
		Builtin{
			Types:      ArgTypes{TypeString, TypeString},
			ReturnType: TypeString,
			// contains filtered or unexported fields
		},
	},

	"regexp_replace": {
		Builtin{
			Types:      ArgTypes{TypeString, TypeString, TypeString},
			ReturnType: TypeString,
			// contains filtered or unexported fields
		},
		Builtin{
			Types:      ArgTypes{TypeString, TypeString, TypeString, TypeString},
			ReturnType: TypeString,
			// contains filtered or unexported fields
		},
	},

	"initcap": {stringBuiltin1(func(s string) (Datum, error) {
		return NewDString(strings.Title(strings.ToLower(s))), nil
	}, TypeString)},

	"left": {
		Builtin{
			Types:      ArgTypes{TypeBytes, TypeInt},
			ReturnType: TypeBytes,
			// contains filtered or unexported fields
		},
		Builtin{
			Types:      ArgTypes{TypeString, TypeInt},
			ReturnType: TypeString,
			// contains filtered or unexported fields
		},
	},

	"right": {
		Builtin{
			Types:      ArgTypes{TypeBytes, TypeInt},
			ReturnType: TypeBytes,
			// contains filtered or unexported fields
		},
		Builtin{
			Types:      ArgTypes{TypeString, TypeInt},
			ReturnType: TypeString,
			// contains filtered or unexported fields
		},
	},

	"random": {
		Builtin{
			Types:      ArgTypes{},
			ReturnType: TypeFloat,
			// contains filtered or unexported fields
		},
	},

	"experimental_unique_bytes": {
		Builtin{
			Types:      ArgTypes{},
			ReturnType: TypeBytes,
			// contains filtered or unexported fields
		},
	},

	"unique_rowid": {
		Builtin{
			Types:      ArgTypes{},
			ReturnType: TypeInt,
			// contains filtered or unexported fields
		},
	},

	"experimental_uuid_v4": {uuidV4Impl},
	"uuid_v4":              {uuidV4Impl},

	"greatest": {
		Builtin{
			Types:      AnyType{},
			ReturnType: nil,
			// contains filtered or unexported fields
		},
	},

	"least": {
		Builtin{
			Types:      AnyType{},
			ReturnType: nil,
			// contains filtered or unexported fields
		},
	},

	"age": {
		Builtin{
			Types:      ArgTypes{TypeTimestamp},
			ReturnType: TypeInterval,
			// contains filtered or unexported fields
		},
		Builtin{
			Types:      ArgTypes{TypeTimestamp, TypeTimestamp},
			ReturnType: TypeInterval,
			// contains filtered or unexported fields
		},
	},

	"current_date": {
		Builtin{
			Types:      ArgTypes{},
			ReturnType: TypeDate,
			// contains filtered or unexported fields
		},
	},

	"now":                   {txnTSImpl},
	"current_timestamp":     {txnTSImpl},
	"transaction_timestamp": {txnTSImpl},

	"statement_timestamp": {
		Builtin{
			Types:      ArgTypes{},
			ReturnType: TypeTimestamp,
			// contains filtered or unexported fields
		},
	},

	"cluster_logical_timestamp": {
		Builtin{
			Types:      ArgTypes{},
			ReturnType: TypeDecimal,
			// contains filtered or unexported fields
		},
	},

	"clock_timestamp": {
		Builtin{
			Types:      ArgTypes{},
			ReturnType: TypeTimestamp,
			// contains filtered or unexported fields
		},
	},

	"extract": {
		Builtin{
			Types:      ArgTypes{TypeString, TypeTimestamp},
			ReturnType: TypeInt,
			// contains filtered or unexported fields
		},
	},

	"parse_timestamp_ns": {
		Builtin{
			Types:      ArgTypes{TypeString},
			ReturnType: TypeTimestamp,
			// contains filtered or unexported fields
		},
	},

	"format_timestamp_ns": {
		Builtin{
			Types:      ArgTypes{TypeTimestamp},
			ReturnType: TypeString,
			// contains filtered or unexported fields
		},
	},

	"current_timestamp_ns": {
		Builtin{
			Types:      ArgTypes{},
			ReturnType: TypeTimestamp,
			// contains filtered or unexported fields
		},
	},

	"avg": {
		Builtin{

			Types:      ArgTypes{TypeInt},
			ReturnType: TypeDecimal,
			// contains filtered or unexported fields
		},
		Builtin{

			Types:      ArgTypes{TypeFloat},
			ReturnType: TypeFloat,
			// contains filtered or unexported fields
		},
		Builtin{

			Types:      ArgTypes{TypeDecimal},
			ReturnType: TypeDecimal,
			// contains filtered or unexported fields
		},
	},

	"bool_and": {
		Builtin{

			Types:      ArgTypes{TypeBool},
			ReturnType: TypeBool,
			// contains filtered or unexported fields
		},
	},

	"bool_or": {
		Builtin{

			Types:      ArgTypes{TypeBool},
			ReturnType: TypeBool,
			// contains filtered or unexported fields
		},
	},

	"count": countImpls(),

	"max": aggregateImpls(TypeBool, TypeInt, TypeFloat, TypeDecimal, TypeString, TypeBytes, TypeDate, TypeTimestamp, TypeInterval),
	"min": aggregateImpls(TypeBool, TypeInt, TypeFloat, TypeDecimal, TypeString, TypeBytes, TypeDate, TypeTimestamp, TypeInterval),

	"sum": {
		Builtin{

			Types:      ArgTypes{TypeInt},
			ReturnType: TypeDecimal,
			// contains filtered or unexported fields
		},
		Builtin{

			Types:      ArgTypes{TypeFloat},
			ReturnType: TypeFloat,
			// contains filtered or unexported fields
		},
		Builtin{

			Types:      ArgTypes{TypeDecimal},
			ReturnType: TypeDecimal,
			// contains filtered or unexported fields
		},
	},

	"variance": {
		Builtin{

			Types:      ArgTypes{TypeInt},
			ReturnType: TypeDecimal,
			// contains filtered or unexported fields
		},
		Builtin{

			Types:      ArgTypes{TypeDecimal},
			ReturnType: TypeDecimal,
			// contains filtered or unexported fields
		},
		Builtin{

			Types:      ArgTypes{TypeFloat},
			ReturnType: TypeFloat,
			// contains filtered or unexported fields
		},
	},

	"stddev": {
		Builtin{

			Types:      ArgTypes{TypeInt},
			ReturnType: TypeDecimal,
			// contains filtered or unexported fields
		},
		Builtin{

			Types:      ArgTypes{TypeDecimal},
			ReturnType: TypeDecimal,
			// contains filtered or unexported fields
		},
		Builtin{

			Types:      ArgTypes{TypeFloat},
			ReturnType: TypeFloat,
			// contains filtered or unexported fields
		},
	},

	"abs": {
		floatBuiltin1(func(x float64) (Datum, error) {
			return NewDFloat(DFloat(math.Abs(x))), nil
		}),
		decimalBuiltin1(func(x *inf.Dec) (Datum, error) {
			dd := &DDecimal{}
			dd.Abs(x)
			return dd, nil
		}),
		Builtin{
			Types:      ArgTypes{TypeInt},
			ReturnType: TypeInt,
			// contains filtered or unexported fields
		},
	},

	"acos": {
		floatBuiltin1(func(x float64) (Datum, error) {
			return NewDFloat(DFloat(math.Acos(x))), nil
		}),
	},

	"asin": {
		floatBuiltin1(func(x float64) (Datum, error) {
			return NewDFloat(DFloat(math.Asin(x))), nil
		}),
	},

	"atan": {
		floatBuiltin1(func(x float64) (Datum, error) {
			return NewDFloat(DFloat(math.Atan(x))), nil
		}),
	},

	"atan2": {
		floatBuiltin2(func(x, y float64) (Datum, error) {
			return NewDFloat(DFloat(math.Atan2(x, y))), nil
		}),
	},

	"cbrt": {
		floatBuiltin1(func(x float64) (Datum, error) {
			return NewDFloat(DFloat(math.Cbrt(x))), nil
		}),
		decimalBuiltin1(func(x *inf.Dec) (Datum, error) {
			dd := &DDecimal{}
			decimal.Cbrt(&dd.Dec, x, decimal.Precision)
			return dd, nil
		}),
	},

	"ceil":    ceilImpl,
	"ceiling": ceilImpl,

	"cos": {
		floatBuiltin1(func(x float64) (Datum, error) {
			return NewDFloat(DFloat(math.Cos(x))), nil
		}),
	},

	"cot": {
		floatBuiltin1(func(x float64) (Datum, error) {
			return NewDFloat(DFloat(1 / math.Tan(x))), nil
		}),
	},

	"degrees": {
		floatBuiltin1(func(x float64) (Datum, error) {
			return NewDFloat(DFloat(180.0 * x / math.Pi)), nil
		}),
	},

	"div": {
		floatBuiltin2(func(x, y float64) (Datum, error) {
			return NewDFloat(DFloat(math.Trunc(x / y))), nil
		}),
		decimalBuiltin2(func(x, y *inf.Dec) (Datum, error) {
			if y.Sign() == 0 {
				return nil, errDivByZero
			}
			dd := &DDecimal{}
			dd.QuoRound(x, y, 0, inf.RoundDown)
			return dd, nil
		}),
	},

	"exp": {
		floatBuiltin1(func(x float64) (Datum, error) {
			return NewDFloat(DFloat(math.Exp(x))), nil
		}),
		decimalBuiltin1(func(x *inf.Dec) (Datum, error) {
			dd := &DDecimal{}
			decimal.Exp(&dd.Dec, x, decimal.Precision)
			return dd, nil
		}),
	},

	"floor": {
		floatBuiltin1(func(x float64) (Datum, error) {
			return NewDFloat(DFloat(math.Floor(x))), nil
		}),
		decimalBuiltin1(func(x *inf.Dec) (Datum, error) {
			dd := &DDecimal{}
			dd.Round(x, 0, inf.RoundFloor)
			return dd, nil
		}),
	},

	"ln": {
		floatBuiltin1(func(x float64) (Datum, error) {
			return NewDFloat(DFloat(math.Log(x))), nil
		}),
		decimalLogFn(decimal.Log),
	},

	"log": {
		floatBuiltin1(func(x float64) (Datum, error) {
			return NewDFloat(DFloat(math.Log10(x))), nil
		}),
		decimalLogFn(decimal.Log10),
	},

	"mod": {
		floatBuiltin2(func(x, y float64) (Datum, error) {
			return NewDFloat(DFloat(math.Mod(x, y))), nil
		}),
		decimalBuiltin2(func(x, y *inf.Dec) (Datum, error) {
			if y.Sign() == 0 {
				return nil, errZeroModulus
			}
			dd := &DDecimal{}
			decimal.Mod(&dd.Dec, x, y)
			return dd, nil
		}),
		Builtin{
			Types:      ArgTypes{TypeInt, TypeInt},
			ReturnType: TypeInt,
			// contains filtered or unexported fields
		},
	},

	"pi": {
		Builtin{
			Types:      ArgTypes{},
			ReturnType: TypeFloat,
			// contains filtered or unexported fields
		},
	},

	"pow":   powImpls,
	"power": powImpls,

	"radians": {
		floatBuiltin1(func(x float64) (Datum, error) {
			return NewDFloat(DFloat(x * math.Pi / 180.0)), nil
		}),
	},

	"round": {
		floatBuiltin1(func(x float64) (Datum, error) {
			return round(x, 0)
		}),
		decimalBuiltin1(func(x *inf.Dec) (Datum, error) {
			dd := &DDecimal{}
			dd.Round(x, 0, inf.RoundHalfUp)
			return dd, nil
		}),
		Builtin{
			Types:      ArgTypes{TypeFloat, TypeInt},
			ReturnType: TypeFloat,
			// contains filtered or unexported fields
		},
		Builtin{
			Types:      ArgTypes{TypeDecimal, TypeInt},
			ReturnType: TypeDecimal,
			// contains filtered or unexported fields
		},
	},

	"sin": {
		floatBuiltin1(func(x float64) (Datum, error) {
			return NewDFloat(DFloat(math.Sin(x))), nil
		}),
	},

	"sign": {
		floatBuiltin1(func(x float64) (Datum, error) {
			switch {
			case x < 0:
				return NewDFloat(-1), nil
			case x == 0:
				return NewDFloat(0), nil
			}
			return NewDFloat(1), nil
		}),
		decimalBuiltin1(func(x *inf.Dec) (Datum, error) {
			return NewDFloat(DFloat(x.Sign())), nil
		}),
		Builtin{
			Types:      ArgTypes{TypeInt},
			ReturnType: TypeInt,
			// contains filtered or unexported fields
		},
	},

	"sqrt": {
		floatBuiltin1(func(x float64) (Datum, error) {
			if x < 0 {
				return nil, errSqrtOfNegNumber
			}
			return NewDFloat(DFloat(math.Sqrt(x))), nil
		}),
		decimalBuiltin1(func(x *inf.Dec) (Datum, error) {
			if x.Sign() < 0 {
				return nil, errSqrtOfNegNumber
			}
			dd := &DDecimal{}
			decimal.Sqrt(&dd.Dec, x, decimal.Precision)
			return dd, nil
		}),
	},

	"tan": {
		floatBuiltin1(func(x float64) (Datum, error) {
			return NewDFloat(DFloat(math.Tan(x))), nil
		}),
	},

	"trunc": {
		floatBuiltin1(func(x float64) (Datum, error) {
			return NewDFloat(DFloat(math.Trunc(x))), nil
		}),
		decimalBuiltin1(func(x *inf.Dec) (Datum, error) {
			dd := &DDecimal{}
			dd.Round(x, 0, inf.RoundDown)
			return dd, nil
		}),
	},
	"version": {
		Builtin{
			Types:      ArgTypes{},
			ReturnType: TypeString,
			// contains filtered or unexported fields
		},
	},
}

Builtins contains the built-in functions indexed by name.

var CmpOps = map[ComparisonOperator]cmpOpOverload{
	EQ: {
		CmpOp{
			LeftType:  TypeString,
			RightType: TypeString,
			// contains filtered or unexported fields
		},
		CmpOp{
			LeftType:  TypeBytes,
			RightType: TypeBytes,
			// contains filtered or unexported fields
		},
		CmpOp{
			LeftType:  TypeBool,
			RightType: TypeBool,
			// contains filtered or unexported fields
		},
		CmpOp{
			LeftType:  TypeInt,
			RightType: TypeInt,
			// contains filtered or unexported fields
		},
		CmpOp{
			LeftType:  TypeFloat,
			RightType: TypeFloat,
			// contains filtered or unexported fields
		},
		CmpOp{
			LeftType:  TypeDecimal,
			RightType: TypeDecimal,
			// contains filtered or unexported fields
		},
		CmpOp{
			LeftType:  TypeFloat,
			RightType: TypeInt,
			// contains filtered or unexported fields
		},
		CmpOp{
			LeftType:  TypeInt,
			RightType: TypeFloat,
			// contains filtered or unexported fields
		},
		CmpOp{
			LeftType:  TypeDecimal,
			RightType: TypeInt,
			// contains filtered or unexported fields
		},
		CmpOp{
			LeftType:  TypeInt,
			RightType: TypeDecimal,
			// contains filtered or unexported fields
		},
		CmpOp{
			LeftType:  TypeDecimal,
			RightType: TypeFloat,
			// contains filtered or unexported fields
		},
		CmpOp{
			LeftType:  TypeFloat,
			RightType: TypeDecimal,
			// contains filtered or unexported fields
		},
		CmpOp{
			LeftType:  TypeDate,
			RightType: TypeDate,
			// contains filtered or unexported fields
		},
		CmpOp{
			LeftType:  TypeTimestamp,
			RightType: TypeTimestamp,
			// contains filtered or unexported fields
		},
		CmpOp{
			LeftType:  TypeTimestampTZ,
			RightType: TypeTimestampTZ,
			// contains filtered or unexported fields
		},
		CmpOp{
			LeftType:  TypeInterval,
			RightType: TypeInterval,
			// contains filtered or unexported fields
		},
		CmpOp{
			LeftType:  TypeTuple,
			RightType: TypeTuple,
			// contains filtered or unexported fields
		},
	},

	LT: {
		CmpOp{
			LeftType:  TypeString,
			RightType: TypeString,
			// contains filtered or unexported fields
		},
		CmpOp{
			LeftType:  TypeBytes,
			RightType: TypeBytes,
			// contains filtered or unexported fields
		},
		CmpOp{
			LeftType:  TypeBool,
			RightType: TypeBool,
			// contains filtered or unexported fields
		},
		CmpOp{
			LeftType:  TypeInt,
			RightType: TypeInt,
			// contains filtered or unexported fields
		},
		CmpOp{
			LeftType:  TypeFloat,
			RightType: TypeFloat,
			// contains filtered or unexported fields
		},
		CmpOp{
			LeftType:  TypeDecimal,
			RightType: TypeDecimal,
			// contains filtered or unexported fields
		},
		CmpOp{
			LeftType:  TypeFloat,
			RightType: TypeInt,
			// contains filtered or unexported fields
		},
		CmpOp{
			LeftType:  TypeInt,
			RightType: TypeFloat,
			// contains filtered or unexported fields
		},
		CmpOp{
			LeftType:  TypeDecimal,
			RightType: TypeInt,
			// contains filtered or unexported fields
		},
		CmpOp{
			LeftType:  TypeInt,
			RightType: TypeDecimal,
			// contains filtered or unexported fields
		},
		CmpOp{
			LeftType:  TypeDecimal,
			RightType: TypeFloat,
			// contains filtered or unexported fields
		},
		CmpOp{
			LeftType:  TypeFloat,
			RightType: TypeDecimal,
			// contains filtered or unexported fields
		},
		CmpOp{
			LeftType:  TypeDate,
			RightType: TypeDate,
			// contains filtered or unexported fields
		},
		CmpOp{
			LeftType:  TypeTimestamp,
			RightType: TypeTimestamp,
			// contains filtered or unexported fields
		},
		CmpOp{
			LeftType:  TypeTimestampTZ,
			RightType: TypeTimestampTZ,
			// contains filtered or unexported fields
		},
		CmpOp{
			LeftType:  TypeInterval,
			RightType: TypeInterval,
			// contains filtered or unexported fields
		},
		CmpOp{
			LeftType:  TypeTuple,
			RightType: TypeTuple,
			// contains filtered or unexported fields
		},
	},

	LE: {
		CmpOp{
			LeftType:  TypeString,
			RightType: TypeString,
			// contains filtered or unexported fields
		},
		CmpOp{
			LeftType:  TypeBytes,
			RightType: TypeBytes,
			// contains filtered or unexported fields
		},
		CmpOp{
			LeftType:  TypeBool,
			RightType: TypeBool,
			// contains filtered or unexported fields
		},
		CmpOp{
			LeftType:  TypeInt,
			RightType: TypeInt,
			// contains filtered or unexported fields
		},
		CmpOp{
			LeftType:  TypeFloat,
			RightType: TypeFloat,
			// contains filtered or unexported fields
		},
		CmpOp{
			LeftType:  TypeDecimal,
			RightType: TypeDecimal,
			// contains filtered or unexported fields
		},
		CmpOp{
			LeftType:  TypeFloat,
			RightType: TypeInt,
			// contains filtered or unexported fields
		},
		CmpOp{
			LeftType:  TypeInt,
			RightType: TypeFloat,
			// contains filtered or unexported fields
		},
		CmpOp{
			LeftType:  TypeDecimal,
			RightType: TypeInt,
			// contains filtered or unexported fields
		},
		CmpOp{
			LeftType:  TypeInt,
			RightType: TypeDecimal,
			// contains filtered or unexported fields
		},
		CmpOp{
			LeftType:  TypeDecimal,
			RightType: TypeFloat,
			// contains filtered or unexported fields
		},
		CmpOp{
			LeftType:  TypeFloat,
			RightType: TypeDecimal,
			// contains filtered or unexported fields
		},
		CmpOp{
			LeftType:  TypeDate,
			RightType: TypeDate,
			// contains filtered or unexported fields
		},
		CmpOp{
			LeftType:  TypeTimestamp,
			RightType: TypeTimestamp,
			// contains filtered or unexported fields
		},
		CmpOp{
			LeftType:  TypeTimestampTZ,
			RightType: TypeTimestampTZ,
			// contains filtered or unexported fields
		},
		CmpOp{
			LeftType:  TypeInterval,
			RightType: TypeInterval,
			// contains filtered or unexported fields
		},
		CmpOp{
			LeftType:  TypeTuple,
			RightType: TypeTuple,
			// contains filtered or unexported fields
		},
	},

	In: {
		makeEvalTupleIn(TypeBool),
		makeEvalTupleIn(TypeInt),
		makeEvalTupleIn(TypeFloat),
		makeEvalTupleIn(TypeString),
		makeEvalTupleIn(TypeBytes),
		makeEvalTupleIn(TypeDate),
		makeEvalTupleIn(TypeTimestamp),
		makeEvalTupleIn(TypeTimestampTZ),
		makeEvalTupleIn(TypeInterval),
		makeEvalTupleIn(TypeTuple),
	},

	Like: {
		CmpOp{
			LeftType:  TypeString,
			RightType: TypeString,
			// contains filtered or unexported fields
		},
	},

	SimilarTo: {
		CmpOp{
			LeftType:  TypeString,
			RightType: TypeString,
			// contains filtered or unexported fields
		},
	},
}

CmpOps contains the comparison operations indexed by operation type.

var NoTypePreference = Datum(nil)

NoTypePreference can be provided to TypeCheck's desired type parameter to indicate that the caller of the function has no preference on the type of the resulting TypedExpr.

var UnaryOps = map[UnaryOperator]unaryOpOverload{
	UnaryPlus: {
		UnaryOp{
			Typ:        TypeInt,
			ReturnType: TypeInt,
			// contains filtered or unexported fields
		},
		UnaryOp{
			Typ:        TypeFloat,
			ReturnType: TypeFloat,
			// contains filtered or unexported fields
		},
		UnaryOp{
			Typ:        TypeDecimal,
			ReturnType: TypeDecimal,
			// contains filtered or unexported fields
		},
	},

	UnaryMinus: {
		UnaryOp{
			Typ:        TypeInt,
			ReturnType: TypeInt,
			// contains filtered or unexported fields
		},
		UnaryOp{
			Typ:        TypeFloat,
			ReturnType: TypeFloat,
			// contains filtered or unexported fields
		},
		UnaryOp{
			Typ:        TypeDecimal,
			ReturnType: TypeDecimal,
			// contains filtered or unexported fields
		},
	},

	UnaryComplement: {
		UnaryOp{
			Typ:        TypeInt,
			ReturnType: TypeInt,
			// contains filtered or unexported fields
		},
	},
}

UnaryOps contains the unary operations indexed by operation type.

Functions

func AsString

func AsString(n NodeFormatter) string

AsString pretty prints a node to a string.

func AsStringWithFlags

func AsStringWithFlags(n NodeFormatter, f FmtFlags) string

AsStringWithFlags pretty prints a node to a string given specific flags.

func ContainsVars

func ContainsVars(expr Expr) bool

ContainsVars returns true if the expression contains any variables.

func FormatNode

func FormatNode(buf *bytes.Buffer, f FmtFlags, n NodeFormatter)

FormatNode recurses into a node for pretty-printing. Flag-driven special cases can hook into this.

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 ValidateRestartCheckpoint

func ValidateRestartCheckpoint(savepoint string) error

ValidateRestartCheckpoint checks that a checkpoint name is our magic restart value. We accept everything with the desired prefix because at least the C++ libpqxx appends sequence numbers to the savepoint name specified by the user.

func WalkExprConst

func WalkExprConst(v Visitor, expr Expr)

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

Types

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(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

type AliasedTableExpr

type AliasedTableExpr struct {
	Expr  SimpleTableExpr
	Hints *IndexHints
	As    AliasClause
}

AliasedTableExpr represents a table expression coupled with an optional alias.

func (*AliasedTableExpr) Format

func (node *AliasedTableExpr) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (*AliasedTableExpr) String

func (node *AliasedTableExpr) String() string

type AlterTable

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

AlterTable represents an ALTER TABLE statement.

func (*AlterTable) Format

func (node *AlterTable) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter 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
	// contains filtered or unexported fields
}

AlterTableAddColumn represents an ADD COLUMN command.

func (*AlterTableAddColumn) Format

func (node *AlterTableAddColumn) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (*AlterTableAddColumn) String

func (n *AlterTableAddColumn) String() string

type AlterTableAddConstraint

type AlterTableAddConstraint struct {
	ConstraintDef ConstraintTableDef
}

AlterTableAddConstraint represents an ADD CONSTRAINT command.

func (*AlterTableAddConstraint) Format

func (node *AlterTableAddConstraint) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (*AlterTableAddConstraint) String

func (n *AlterTableAddConstraint) String() string

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(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (AlterTableCmds) String

func (n AlterTableCmds) String() string

type AlterTableDropColumn

type AlterTableDropColumn struct {
	IfExists     bool
	Column       string
	DropBehavior DropBehavior
	// contains filtered or unexported fields
}

AlterTableDropColumn represents a DROP COLUMN command.

func (*AlterTableDropColumn) Format

func (node *AlterTableDropColumn) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (*AlterTableDropColumn) String

func (n *AlterTableDropColumn) String() string

type AlterTableDropConstraint

type AlterTableDropConstraint struct {
	IfExists     bool
	Constraint   string
	DropBehavior DropBehavior
}

AlterTableDropConstraint represents a DROP CONSTRAINT command.

func (*AlterTableDropConstraint) Format

func (node *AlterTableDropConstraint) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (*AlterTableDropConstraint) String

func (n *AlterTableDropConstraint) String() string

type AlterTableDropNotNull

type AlterTableDropNotNull struct {
	Column string
	// contains filtered or unexported fields
}

AlterTableDropNotNull represents an ALTER COLUMN DROP NOT NULL command.

func (*AlterTableDropNotNull) Format

func (node *AlterTableDropNotNull) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (*AlterTableDropNotNull) GetColumn

func (node *AlterTableDropNotNull) GetColumn() string

GetColumn implements the ColumnMutationCmd interface.

func (*AlterTableDropNotNull) String

func (n *AlterTableDropNotNull) String() string

type AlterTableSetDefault

type AlterTableSetDefault struct {
	Column  string
	Default Expr
	// contains filtered or unexported fields
}

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

func (*AlterTableSetDefault) Format

func (node *AlterTableSetDefault) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (*AlterTableSetDefault) GetColumn

func (node *AlterTableSetDefault) GetColumn() string

GetColumn implements the ColumnMutationCmd interface.

func (*AlterTableSetDefault) String

func (n *AlterTableSetDefault) 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(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (AndExpr) ReturnType

func (ta AndExpr) ReturnType() Datum

func (*AndExpr) String

func (node *AndExpr) String() string

func (*AndExpr) TypeCheck

func (expr *AndExpr) TypeCheck(ctx *SemaContext, desired Datum) (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 AnyType

type AnyType struct{}

AnyType is a typeList implementation that accepts any arguments.

type ArgTypes

type ArgTypes []Datum

ArgTypes is a typeList implementation that accepts a specific number of argument types.

type Array

type Array struct {
	Exprs Exprs
}

Array represents an array constructor.

func (*Array) Format

func (node *Array) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (*Array) String

func (node *Array) String() string

func (*Array) TypeCheck

func (expr *Array) TypeCheck(_ *SemaContext, desired Datum) (TypedExpr, error)

TypeCheck implements the Expr interface.

func (*Array) Walk

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

Walk implements the Expr interface.

type ArrayIndirection

type ArrayIndirection struct {
	Begin Expr
	End   Expr
}

ArrayIndirection represents "[<begin>:<end>]" in an indirection expression.

func (*ArrayIndirection) Format

func (a *ArrayIndirection) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

type BeginTransaction

type BeginTransaction struct {
	Isolation    IsolationLevel
	UserPriority UserPriority
}

BeginTransaction represents a BEGIN statement

func (*BeginTransaction) Format

func (node *BeginTransaction) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter 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   Datum
	RightType  Datum
	ReturnType Datum
	// contains filtered or unexported fields
}

BinOp is a binary operator.

type BinaryExpr

type BinaryExpr struct {
	Operator    BinaryOperator
	Left, Right Expr
	// contains filtered or unexported fields
}

BinaryExpr represents a binary value expression.

func (*BinaryExpr) Eval

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

Eval implements the TypedExpr interface.

func (*BinaryExpr) Format

func (node *BinaryExpr) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (BinaryExpr) ReturnType

func (ta BinaryExpr) ReturnType() Datum

func (*BinaryExpr) String

func (node *BinaryExpr) String() string

func (*BinaryExpr) TypeCheck

func (expr *BinaryExpr) TypeCheck(ctx *SemaContext, desired Datum) (TypedExpr, error)

TypeCheck implements the Expr interface.

func (*BinaryExpr) Walk

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

Walk implements the Expr interface.

type BinaryOperator

type BinaryOperator int

BinaryOperator represents a binary operator.

const (
	Bitand BinaryOperator = iota
	Bitor
	Bitxor
	Plus
	Minus
	Mult
	Div
	FloorDiv
	Mod
	Concat
	LShift
	RShift
)

BinaryExpr.Operator

func (BinaryOperator) String

func (i BinaryOperator) String() string

type BoolColType

type BoolColType struct {
	Name string
}

BoolColType represents a BOOLEAN type.

func (*BoolColType) Format

func (node *BoolColType) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (*BoolColType) String

func (node *BoolColType) String() string

type Builtin

type Builtin struct {
	Types      typeList
	ReturnType Datum
	// contains filtered or unexported fields
}

Builtin is a built-in function.

type BytesColType

type BytesColType struct {
	Name string
}

BytesColType represents a BYTES or BLOB type.

func (*BytesColType) Format

func (node *BytesColType) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (*BytesColType) String

func (node *BytesColType) String() string

type CaseExpr

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

CaseExpr represents a CASE expression.

func (*CaseExpr) CopyNode

func (expr *CaseExpr) CopyNode() *CaseExpr

CopyNode makes a copy of this Expr without recursing in any child Exprs.

func (*CaseExpr) Eval

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

Eval implements the TypedExpr interface.

func (*CaseExpr) Format

func (node *CaseExpr) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (CaseExpr) ReturnType

func (ta CaseExpr) ReturnType() Datum

func (*CaseExpr) String

func (node *CaseExpr) String() string

func (*CaseExpr) TypeCheck

func (expr *CaseExpr) TypeCheck(ctx *SemaContext, desired Datum) (TypedExpr, error)

TypeCheck implements the Expr interface.

func (*CaseExpr) Walk

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

Walk implements the Expr interface.

type CastExpr

type CastExpr struct {
	Expr Expr
	Type ColumnType
	// contains filtered or unexported fields
}

CastExpr represents a CAST(expr AS type) expression.

func (*CastExpr) Eval

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

Eval implements the TypedExpr interface.

func (*CastExpr) Format

func (node *CastExpr) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (CastExpr) ReturnType

func (ta CastExpr) ReturnType() Datum

func (*CastExpr) String

func (node *CastExpr) String() string

func (*CastExpr) TypeCheck

func (expr *CastExpr) TypeCheck(ctx *SemaContext, desired Datum) (TypedExpr, error)

TypeCheck implements the Expr interface.

func (*CastExpr) Walk

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

Walk implements the Expr interface.

type CheckConstraintTableDef

type CheckConstraintTableDef struct {
	Name Name
	Expr Expr
}

CheckConstraintTableDef represents a check constraint within a CREATE TABLE statement.

func (*CheckConstraintTableDef) Format

func (node *CheckConstraintTableDef) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

type CmpOp

type CmpOp struct {
	LeftType  Datum
	RightType Datum
	// 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 (*CoalesceExpr) CopyNode

func (expr *CoalesceExpr) CopyNode() *CoalesceExpr

CopyNode makes a copy of this Expr without recursing in any child Exprs.

func (*CoalesceExpr) Eval

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

Eval implements the TypedExpr interface.

func (*CoalesceExpr) Format

func (node *CoalesceExpr) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (CoalesceExpr) ReturnType

func (ta CoalesceExpr) ReturnType() Datum

func (*CoalesceExpr) String

func (node *CoalesceExpr) String() string

func (*CoalesceExpr) TypeCheck

func (expr *CoalesceExpr) TypeCheck(ctx *SemaContext, desired Datum) (TypedExpr, error)

TypeCheck implements the Expr interface.

func (*CoalesceExpr) Walk

func (expr *CoalesceExpr) 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 ColumnDefault

type ColumnDefault struct {
	Expr Expr
}

ColumnDefault represents a DEFAULT clause for a column.

type ColumnFKConstraint

type ColumnFKConstraint struct {
	Table *QualifiedName
	Col   Name // empty-string means use PK
}

ColumnFKConstraint represents a FK-constaint on a column.

type ColumnMutationCmd

type ColumnMutationCmd interface {
	AlterTableCmd
	GetColumn() string
}

ColumnMutationCmd is the subset of AlterTableCmds that modify an existing 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        ColumnType
	Nullable    Nullability
	PrimaryKey  bool
	Unique      bool
	DefaultExpr Expr
	CheckExpr   Expr
	References  struct {
		Table *QualifiedName
		Col   Name
	}
}

ColumnTableDef represents a column definition within a CREATE TABLE statement.

func (*ColumnTableDef) Format

func (node *ColumnTableDef) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

type ColumnType

type ColumnType interface {
	fmt.Stringer
	NodeFormatter
	// contains filtered or unexported methods
}

ColumnType represents a type in a column definition.

type CommitTransaction

type CommitTransaction struct{}

CommitTransaction represents a COMMIT statement.

func (*CommitTransaction) Format

func (node *CommitTransaction) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter 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 ComparisonExpr

type ComparisonExpr struct {
	Operator    ComparisonOperator
	Left, Right Expr
	// contains filtered or unexported fields
}

ComparisonExpr represents a two-value comparison expression.

func NewTypedComparisonExpr

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

NewTypedComparisonExpr 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.

func (*ComparisonExpr) Format

func (node *ComparisonExpr) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (*ComparisonExpr) IsMixedTypeComparison

func (node *ComparisonExpr) IsMixedTypeComparison() bool

IsMixedTypeComparison returns true when the two sides of a comparison operator have different types.

func (ComparisonExpr) ReturnType

func (ta ComparisonExpr) ReturnType() Datum

func (*ComparisonExpr) String

func (node *ComparisonExpr) String() string

func (*ComparisonExpr) TypeCheck

func (expr *ComparisonExpr) TypeCheck(ctx *SemaContext, desired Datum) (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 ComparisonOperator

type ComparisonOperator int

ComparisonOperator represents a binary operator.

const (
	EQ ComparisonOperator = iota
	LT
	GT
	LE
	GE
	NE
	In
	NotIn
	Like
	NotLike
	SimilarTo
	NotSimilarTo
	IsDistinctFrom
	IsNotDistinctFrom
	Is
	IsNot
)

ComparisonExpr.Operator

func (ComparisonOperator) String

func (i ComparisonOperator) 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() []Datum
	// ResolveAsType resolves the Constant as the Datum type specified, 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.
	ResolveAsType(*SemaContext, Datum) (Datum, error)
}

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

type ConstraintTableDef

type ConstraintTableDef interface {
	TableDef
	// contains filtered or unexported methods
}

ConstraintTableDef represents a constraint definition within a CREATE TABLE statement.

type CreateDatabase

type CreateDatabase struct {
	IfNotExists bool
	Name        Name
	Encoding    *StrVal
}

CreateDatabase represents a CREATE DATABASE statement.

func (*CreateDatabase) Format

func (node *CreateDatabase) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter 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 CreateIndex

type CreateIndex struct {
	Name        Name
	Table       *QualifiedName
	Unique      bool
	IfNotExists bool
	Columns     IndexElemList
	// Extra columns to be stored together with the indexed ones as an optimization
	// for improved reading performance.
	Storing NameList
}

CreateIndex represents a CREATE INDEX statement.

func (*CreateIndex) Format

func (node *CreateIndex) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter 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 CreateTable

type CreateTable struct {
	IfNotExists bool
	Table       *QualifiedName
	Defs        TableDefs
}

CreateTable represents a CREATE TABLE statement.

func (*CreateTable) Format

func (node *CreateTable) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (*CreateTable) StatementTag

func (*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 DBool

type DBool bool

DBool is the boolean Datum.

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 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.

func (*DBool) Compare

func (d *DBool) Compare(other Datum) int

Compare 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(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (*DBool) HasNext

func (*DBool) HasNext() bool

HasNext implements the Datum interface.

func (*DBool) HasPrev

func (*DBool) HasPrev() bool

HasPrev implements the Datum interface.

func (*DBool) IsMax

func (d *DBool) IsMax() bool

IsMax implements the Datum interface.

func (*DBool) IsMin

func (d *DBool) IsMin() bool

IsMin implements the Datum interface.

func (*DBool) Next

func (*DBool) Next() Datum

Next implements the Datum interface.

func (*DBool) Prev

func (*DBool) Prev() Datum

Prev implements the Datum interface.

func (*DBool) ReturnType

func (*DBool) ReturnType() Datum

ReturnType implements the TypedExpr interface.

func (*DBool) String

func (node *DBool) String() string

func (*DBool) Type

func (*DBool) Type() string

Type implements the Datum interface.

func (*DBool) TypeCheck

func (d *DBool) TypeCheck(_ *SemaContext, desired Datum) (TypedExpr, error)

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

func (*DBool) TypeEqual

func (d *DBool) TypeEqual(other Datum) bool

TypeEqual implements the Datum interface.

func (*DBool) Walk

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

Walk implements the Expr interface.

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 NewDBytes

func NewDBytes(d DBytes) *DBytes

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

func (*DBytes) Compare

func (d *DBytes) Compare(other Datum) int

Compare 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(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (*DBytes) HasNext

func (*DBytes) HasNext() bool

HasNext implements the Datum interface.

func (*DBytes) HasPrev

func (*DBytes) HasPrev() bool

HasPrev implements the Datum interface.

func (*DBytes) IsMax

func (*DBytes) IsMax() bool

IsMax implements the Datum interface.

func (*DBytes) IsMin

func (d *DBytes) IsMin() bool

IsMin implements the Datum interface.

func (*DBytes) Next

func (d *DBytes) Next() Datum

Next implements the Datum interface.

func (*DBytes) Prev

func (d *DBytes) Prev() Datum

Prev implements the Datum interface.

func (*DBytes) ReturnType

func (d *DBytes) ReturnType() Datum

ReturnType implements the TypedExpr interface.

func (*DBytes) String

func (node *DBytes) String() string

func (*DBytes) Type

func (*DBytes) Type() string

Type implements the Datum interface.

func (*DBytes) TypeCheck

func (d *DBytes) TypeCheck(_ *SemaContext, desired Datum) (TypedExpr, error)

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

func (*DBytes) TypeEqual

func (d *DBytes) TypeEqual(other Datum) bool

TypeEqual implements the Datum interface.

func (*DBytes) Walk

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

Walk implements the Expr interface.

type DDate

type DDate int64

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

func NewDDate

func NewDDate(d DDate) *DDate

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

func NewDDateFromTime

func NewDDateFromTime(t time.Time, loc *time.Location) *DDate

NewDDateFromTime constructs a *DDate from a time.Time in the provided time zone.

func ParseDDate

func ParseDDate(s string, loc *time.Location) (*DDate, 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.

func (*DDate) Compare

func (d *DDate) Compare(other Datum) int

Compare 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(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (*DDate) HasNext

func (*DDate) HasNext() bool

HasNext implements the Datum interface.

func (*DDate) HasPrev

func (*DDate) HasPrev() bool

HasPrev implements the Datum interface.

func (*DDate) IsMax

func (d *DDate) IsMax() bool

IsMax implements the Datum interface.

func (*DDate) IsMin

func (d *DDate) IsMin() bool

IsMin implements the Datum interface.

func (*DDate) Next

func (d *DDate) Next() Datum

Next implements the Datum interface.

func (*DDate) Prev

func (d *DDate) Prev() Datum

Prev implements the Datum interface.

func (*DDate) ReturnType

func (*DDate) ReturnType() Datum

ReturnType implements the TypedExpr interface.

func (*DDate) String

func (node *DDate) String() string

func (*DDate) Type

func (*DDate) Type() string

Type implements the Datum interface.

func (*DDate) TypeCheck

func (d *DDate) TypeCheck(_ *SemaContext, desired Datum) (TypedExpr, error)

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

func (*DDate) TypeEqual

func (d *DDate) TypeEqual(other Datum) bool

TypeEqual implements the Datum interface.

func (*DDate) Walk

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

Walk implements the Expr interface.

type DDecimal

type DDecimal struct {
	inf.Dec
}

DDecimal is the decimal Datum.

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 (*DDecimal) Compare

func (d *DDecimal) Compare(other Datum) int

Compare 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(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (*DDecimal) HasNext

func (*DDecimal) HasNext() bool

HasNext implements the Datum interface.

func (*DDecimal) HasPrev

func (*DDecimal) HasPrev() bool

HasPrev implements the Datum interface.

func (*DDecimal) IsMax

func (*DDecimal) IsMax() bool

IsMax implements the Datum interface.

func (*DDecimal) IsMin

func (*DDecimal) IsMin() bool

IsMin implements the Datum interface.

func (*DDecimal) Next

func (d *DDecimal) Next() Datum

Next implements the Datum interface.

func (*DDecimal) Prev

func (d *DDecimal) Prev() Datum

Prev implements the Datum interface.

func (*DDecimal) ReturnType

func (d *DDecimal) ReturnType() Datum

ReturnType implements the TypedExpr interface.

func (*DDecimal) String

func (node *DDecimal) String() string

func (*DDecimal) Type

func (*DDecimal) Type() string

Type implements the Datum interface.

func (*DDecimal) TypeCheck

func (d *DDecimal) TypeCheck(_ *SemaContext, desired Datum) (TypedExpr, error)

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

func (*DDecimal) TypeEqual

func (d *DDecimal) TypeEqual(other Datum) bool

TypeEqual implements the Datum interface.

func (*DDecimal) Walk

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

Walk implements the Expr interface.

type DFloat

type DFloat float64

DFloat is the float Datum.

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 (*DFloat) Compare

func (d *DFloat) Compare(other Datum) int

Compare 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(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (*DFloat) HasNext

func (*DFloat) HasNext() bool

HasNext implements the Datum interface.

func (*DFloat) HasPrev

func (*DFloat) HasPrev() bool

HasPrev implements the Datum interface.

func (*DFloat) IsMax

func (d *DFloat) IsMax() bool

IsMax implements the Datum interface.

func (*DFloat) IsMin

func (d *DFloat) IsMin() bool

IsMin implements the Datum interface.

func (*DFloat) Next

func (d *DFloat) Next() Datum

Next implements the Datum interface.

func (*DFloat) Prev

func (d *DFloat) Prev() Datum

Prev implements the Datum interface.

func (*DFloat) ReturnType

func (*DFloat) ReturnType() Datum

ReturnType implements the TypedExpr interface.

func (*DFloat) String

func (node *DFloat) String() string

func (*DFloat) Type

func (*DFloat) Type() string

Type implements the Datum interface.

func (*DFloat) TypeCheck

func (d *DFloat) TypeCheck(_ *SemaContext, desired Datum) (TypedExpr, error)

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

func (*DFloat) TypeEqual

func (d *DFloat) TypeEqual(other Datum) bool

TypeEqual implements the Datum interface.

func (*DFloat) Walk

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

Walk implements the Expr interface.

type DInt

type DInt int64

DInt is the int Datum.

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) Compare

func (d *DInt) Compare(other Datum) int

Compare 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(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (*DInt) HasNext

func (*DInt) HasNext() bool

HasNext implements the Datum interface.

func (*DInt) HasPrev

func (*DInt) HasPrev() bool

HasPrev implements the Datum interface.

func (*DInt) IsMax

func (d *DInt) IsMax() bool

IsMax implements the Datum interface.

func (*DInt) IsMin

func (d *DInt) IsMin() bool

IsMin implements the Datum interface.

func (*DInt) Next

func (d *DInt) Next() Datum

Next implements the Datum interface.

func (*DInt) Prev

func (d *DInt) Prev() Datum

Prev implements the Datum interface.

func (*DInt) ReturnType

func (*DInt) ReturnType() Datum

ReturnType implements the TypedExpr interface.

func (*DInt) String

func (node *DInt) String() string

func (*DInt) Type

func (*DInt) Type() string

Type implements the Datum interface.

func (*DInt) TypeCheck

func (d *DInt) TypeCheck(_ *SemaContext, desired Datum) (TypedExpr, error)

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

func (*DInt) TypeEqual

func (d *DInt) TypeEqual(other Datum) bool

TypeEqual implements the Datum interface.

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 ParseDInterval

func ParseDInterval(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 (*DInterval) Compare

func (d *DInterval) Compare(other Datum) int

Compare 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(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (*DInterval) HasNext

func (*DInterval) HasNext() bool

HasNext implements the Datum interface.

func (*DInterval) HasPrev

func (*DInterval) HasPrev() bool

HasPrev implements the Datum interface.

func (*DInterval) IsMax

func (d *DInterval) IsMax() bool

IsMax implements the Datum interface.

func (*DInterval) IsMin

func (d *DInterval) IsMin() bool

IsMin implements the Datum interface.

func (*DInterval) Next

func (d *DInterval) Next() Datum

Next implements the Datum interface.

func (*DInterval) Prev

func (d *DInterval) Prev() Datum

Prev implements the Datum interface.

func (*DInterval) ReturnType

func (d *DInterval) ReturnType() Datum

ReturnType implements the TypedExpr interface.

func (*DInterval) String

func (node *DInterval) String() string

func (*DInterval) Type

func (*DInterval) Type() string

Type implements the Datum interface.

func (*DInterval) TypeCheck

func (d *DInterval) TypeCheck(_ *SemaContext, desired Datum) (TypedExpr, error)

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

func (*DInterval) TypeEqual

func (d *DInterval) TypeEqual(other Datum) bool

TypeEqual implements the Datum interface.

func (*DInterval) Walk

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

Walk implements the Expr interface.

type DPlaceholder

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

DPlaceholder is the named placeholder Datum.

func (*DPlaceholder) Compare

func (d *DPlaceholder) Compare(other Datum) int

Compare implements the Datum interface.

func (*DPlaceholder) Eval

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

Eval implements the TypedExpr interface.

func (*DPlaceholder) Format

func (d *DPlaceholder) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (*DPlaceholder) HasNext

func (*DPlaceholder) HasNext() bool

HasNext implements the Datum interface.

func (*DPlaceholder) HasPrev

func (*DPlaceholder) HasPrev() bool

HasPrev implements the Datum interface.

func (*DPlaceholder) IsMax

func (*DPlaceholder) IsMax() bool

IsMax implements the Datum interface.

func (*DPlaceholder) IsMin

func (*DPlaceholder) IsMin() bool

IsMin implements the Datum interface.

func (*DPlaceholder) Name

func (d *DPlaceholder) Name() string

Name gives access to the placeholder's name to other packages.

func (*DPlaceholder) Next

func (d *DPlaceholder) Next() Datum

Next implements the Datum interface.

func (*DPlaceholder) Prev

func (d *DPlaceholder) Prev() Datum

Prev implements the Datum interface.

func (*DPlaceholder) ReturnType

func (d *DPlaceholder) ReturnType() Datum

ReturnType implements the TypedExpr interface.

func (*DPlaceholder) String

func (node *DPlaceholder) String() string

func (*DPlaceholder) Type

func (*DPlaceholder) Type() string

Type implements the Datum interface.

func (*DPlaceholder) TypeCheck

func (d *DPlaceholder) TypeCheck(_ *SemaContext, desired Datum) (TypedExpr, error)

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

func (*DPlaceholder) TypeEqual

func (d *DPlaceholder) TypeEqual(other Datum) bool

TypeEqual implements the Datum interface.

func (*DPlaceholder) Variable

func (*DPlaceholder) Variable()

Variable implements the VariableExpr interface.

func (*DPlaceholder) Walk

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

Walk implements the Expr interface.

type DString

type DString string

DString is the string Datum.

func NewDString

func NewDString(d string) *DString

NewDString is a helper routine to create a *DString initialized from its argument.

func (*DString) Compare

func (d *DString) Compare(other Datum) int

Compare 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(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (*DString) HasNext

func (*DString) HasNext() bool

HasNext implements the Datum interface.

func (*DString) HasPrev

func (*DString) HasPrev() bool

HasPrev implements the Datum interface.

func (*DString) IsMax

func (*DString) IsMax() bool

IsMax implements the Datum interface.

func (*DString) IsMin

func (d *DString) IsMin() bool

IsMin implements the Datum interface.

func (*DString) Next

func (d *DString) Next() Datum

Next implements the Datum interface.

func (*DString) Prev

func (d *DString) Prev() Datum

Prev implements the Datum interface.

func (*DString) ReturnType

func (*DString) ReturnType() Datum

ReturnType implements the TypedExpr interface.

func (*DString) String

func (node *DString) String() string

func (*DString) Type

func (*DString) Type() string

Type implements the Datum interface.

func (*DString) TypeCheck

func (d *DString) TypeCheck(_ *SemaContext, desired Datum) (TypedExpr, error)

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

func (*DString) TypeEqual

func (d *DString) TypeEqual(other Datum) bool

TypeEqual implements the Datum interface.

func (*DString) Walk

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

Walk implements the Expr interface.

type DTimestamp

type DTimestamp struct {
	time.Time
}

DTimestamp is the timestamp Datum.

func MakeDTimestamp

func MakeDTimestamp(t time.Time, precision time.Duration) *DTimestamp

MakeDTimestamp creates a DTimestamp with specified precision.

func ParseDTimestamp

func ParseDTimestamp(s string, loc *time.Location, precision time.Duration) (*DTimestamp, error)

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

func (*DTimestamp) Compare

func (d *DTimestamp) Compare(other Datum) int

Compare 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(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (*DTimestamp) HasNext

func (*DTimestamp) HasNext() bool

HasNext implements the Datum interface.

func (*DTimestamp) HasPrev

func (*DTimestamp) HasPrev() bool

HasPrev implements the Datum interface.

func (*DTimestamp) IsMax

func (d *DTimestamp) IsMax() bool

IsMax implements the Datum interface.

func (*DTimestamp) IsMin

func (d *DTimestamp) IsMin() bool

IsMin implements the Datum interface.

func (*DTimestamp) Next

func (d *DTimestamp) Next() Datum

Next implements the Datum interface.

func (*DTimestamp) Prev

func (d *DTimestamp) Prev() Datum

Prev implements the Datum interface.

func (*DTimestamp) ReturnType

func (*DTimestamp) ReturnType() Datum

ReturnType implements the TypedExpr interface.

func (*DTimestamp) String

func (node *DTimestamp) String() string

func (*DTimestamp) Type

func (*DTimestamp) Type() string

Type implements the Datum interface.

func (*DTimestamp) TypeCheck

func (d *DTimestamp) TypeCheck(_ *SemaContext, desired Datum) (TypedExpr, error)

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

func (*DTimestamp) TypeEqual

func (d *DTimestamp) TypeEqual(other Datum) bool

TypeEqual implements the Datum interface.

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 MakeDTimestampTZ

func MakeDTimestampTZ(t time.Time, precision time.Duration) *DTimestampTZ

MakeDTimestampTZ creates a DTimestampTZ with specified precision.

func ParseDTimestampTZ

func ParseDTimestampTZ(
	s string, loc *time.Location, precision time.Duration,
) (*DTimestampTZ, 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.

func (*DTimestampTZ) Compare

func (d *DTimestampTZ) Compare(other Datum) int

Compare implements the Datum interface.

func (*DTimestampTZ) Eval

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

Eval implements the TypedExpr interface.

func (*DTimestampTZ) Format

func (d *DTimestampTZ) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (*DTimestampTZ) HasNext

func (d *DTimestampTZ) HasNext() bool

HasNext implements the Datum interface.

func (*DTimestampTZ) HasPrev

func (d *DTimestampTZ) HasPrev() bool

HasPrev implements the Datum interface.

func (*DTimestampTZ) IsMax

func (d *DTimestampTZ) IsMax() bool

IsMax implements the Datum interface.

func (*DTimestampTZ) IsMin

func (d *DTimestampTZ) IsMin() bool

IsMin implements the Datum interface.

func (*DTimestampTZ) Next

func (d *DTimestampTZ) Next() Datum

Next implements the Datum interface.

func (*DTimestampTZ) Prev

func (d *DTimestampTZ) Prev() Datum

Prev implements the Datum interface.

func (*DTimestampTZ) ReturnType

func (*DTimestampTZ) ReturnType() Datum

ReturnType implements the TypedExpr interface.

func (*DTimestampTZ) String

func (node *DTimestampTZ) String() string

func (*DTimestampTZ) Type

func (d *DTimestampTZ) Type() string

Type implements the Datum interface.

func (*DTimestampTZ) TypeCheck

func (d *DTimestampTZ) TypeCheck(_ *SemaContext, desired Datum) (TypedExpr, error)

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

func (*DTimestampTZ) TypeEqual

func (d *DTimestampTZ) TypeEqual(other Datum) bool

TypeEqual implements the Datum interface.

func (*DTimestampTZ) Walk

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

Walk implements the Expr interface.

type DTuple

type DTuple []Datum

DTuple is the tuple Datum.

func (*DTuple) Compare

func (d *DTuple) Compare(other Datum) int

Compare implements the Datum interface.

func (*DTuple) Eval

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

Eval implements the TypedExpr interface.

func (*DTuple) Format

func (d *DTuple) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (*DTuple) HasNext

func (d *DTuple) HasNext() bool

HasNext implements the Datum interface.

func (*DTuple) HasPrev

func (d *DTuple) HasPrev() bool

HasPrev implements the Datum interface.

func (*DTuple) IsMax

func (*DTuple) IsMax() bool

IsMax implements the Datum interface.

func (*DTuple) IsMin

func (*DTuple) IsMin() bool

IsMin implements the Datum interface.

func (*DTuple) Len

func (d *DTuple) Len() int

func (*DTuple) Less

func (d *DTuple) Less(i, j int) bool

func (*DTuple) Next

func (d *DTuple) Next() Datum

Next implements the Datum interface.

func (*DTuple) Normalize

func (d *DTuple) Normalize()

Normalize sorts and uniques the datum tuple.

func (*DTuple) Prev

func (d *DTuple) Prev() Datum

Prev implements the Datum interface.

func (*DTuple) ReturnType

func (d *DTuple) ReturnType() Datum

ReturnType implements the TypedExpr interface.

func (*DTuple) SortedDifference

func (d *DTuple) SortedDifference(other *DTuple) *DTuple

SortedDifference finds the elements of d which are not in other, assuming that d and other are already sorted.

func (*DTuple) String

func (node *DTuple) String() string

func (*DTuple) Swap

func (d *DTuple) Swap(i, j int)

func (*DTuple) Type

func (*DTuple) Type() string

Type implements the Datum interface.

func (*DTuple) TypeCheck

func (d *DTuple) TypeCheck(_ *SemaContext, desired Datum) (TypedExpr, error)

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

func (*DTuple) TypeEqual

func (d *DTuple) TypeEqual(other Datum) bool

TypeEqual implements the Datum interface.

func (*DTuple) Walk

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

Walk implements the Expr interface.

type DateColType

type DateColType struct {
}

DateColType represents a DATE type.

func (*DateColType) Format

func (node *DateColType) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (*DateColType) String

func (node *DateColType) String() string

type Datum

type Datum interface {
	TypedExpr
	// Type returns the (user-friendly) name of the type.
	Type() string
	// TypeEqual determines if the receiver and the other Datum have the same
	// type or not. This method should be used for asserting the type of all
	// Datum, with the exception of DNull, where it is safe/encouraged to perform
	// a direct equivalence check.
	TypeEqual(other Datum) 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(nvanbenschoten) Should we look into merging this with cmpOps?
	Compare(other Datum) int
	// HasPrev specifies if Prev() can be used to compute a previous value for
	// a datum. For example, DBytes doesn't support it (the previous for BB is BAZZZ..).
	HasPrev() bool
	// Prev returns the previous datum. If the receiver is "b" and the returned datum
	// is "a", then "a < b" and no other datum will compare such that "a < c <
	// b".
	// The return value is undefined if `IsMin()`.
	Prev() Datum
	// HasNext specifies if Next() can be used to compute a next value for a
	// datum. For example, DDecimal doesn't support it (the next for 1.0 is 1.00..1).
	HasNext() bool
	// Next returns the next datum. If the receiver is "a" and the returned datum
	// is "b", then "a < b" and no other datum will compare such that "a < c <
	// b".
	// The return value is undefined if `IsMax()`.
	Next() Datum
	// IsMax returns true if the datum is equal to the maximum value the datum
	// type can hold.
	IsMax() bool
	// IsMin returns true if the datum is equal to the minimum value the datum
	// type can hold.
	IsMin() bool
}

A Datum holds either a bool, int64, float64, string or []Datum.

var (
	// TypeBool is the type of a DBool.
	TypeBool Datum = DBoolFalse
	// TypeInt is the type of a DInt.
	TypeInt Datum = NewDInt(0)
	// TypeFloat is the type of a DFloat.
	TypeFloat Datum = NewDFloat(0)
	// TypeDecimal is the type of a DDecimal.
	TypeDecimal Datum = &DDecimal{}
	// TypeString is the type of a DString.
	TypeString Datum = NewDString("")
	// TypeBytes is the type of a DBytes.
	TypeBytes Datum = NewDBytes("")
	// TypeDate is the type of a DDate.
	TypeDate Datum = NewDDate(0)
	// TypeTimestamp is the type of a DTimestamp.
	TypeTimestamp Datum = &DTimestamp{}
	// TypeTimestampTZ is the type of a DTimestamp.
	TypeTimestampTZ Datum = &DTimestampTZ{}
	// TypeInterval is the type of a DInterval.
	TypeInterval Datum = &DInterval{}
	// TypeTuple is the type of a DTuple.
	TypeTuple Datum = &DTuple{}
)

type DecimalColType

type DecimalColType struct {
	Name  string
	Prec  int
	Scale int
}

DecimalColType represents a DECIMAL or NUMERIC type.

func (*DecimalColType) Format

func (node *DecimalColType) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (*DecimalColType) String

func (node *DecimalColType) String() string

type DefaultVal

type DefaultVal struct{}

DefaultVal represents the DEFAULT expression.

func (DefaultVal) Eval

func (expr DefaultVal) Eval(_ *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (DefaultVal) Format

func (node DefaultVal) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (DefaultVal) ReturnType

func (DefaultVal) ReturnType() Datum

ReturnType implements the TypedExpr interface.

func (DefaultVal) String

func (node DefaultVal) String() string

func (DefaultVal) TypeCheck

func (expr DefaultVal) TypeCheck(_ *SemaContext, desired Datum) (TypedExpr, error)

TypeCheck implements the Expr interface.

func (DefaultVal) Walk

func (expr DefaultVal) Walk(_ Visitor) Expr

Walk implements the Expr interface.

type Delete

type Delete struct {
	Table     TableExpr
	Where     *Where
	Returning ReturningExprs
}

Delete represents a DELETE statement.

func (*Delete) CopyNode

func (stmt *Delete) CopyNode() *Delete

CopyNode makes a copy of this Expr without recursing in any child Exprs.

func (*Delete) Format

func (node *Delete) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (*Delete) StatementTag

func (*Delete) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*Delete) StatementType

func (n *Delete) StatementType() StatementType

StatementType implements the Statement interface.

func (*Delete) String

func (n *Delete) String() string

func (*Delete) WalkStmt

func (stmt *Delete) WalkStmt(v Visitor) Statement

WalkStmt is part of the WalkableStmt interface.

type Direction

type Direction int

Direction for ordering results.

const (
	DefaultDirection Direction = iota
	Ascending
	Descending
)

Direction values.

func (Direction) String

func (d Direction) String() string

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
}

DropDatabase represents a DROP DATABASE statement.

func (*DropDatabase) Format

func (node *DropDatabase) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter 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    TableNameWithIndexList
	IfExists     bool
	DropBehavior DropBehavior
}

DropIndex represents a DROP INDEX statement.

func (*DropIndex) Format

func (node *DropIndex) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter 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 DropTable

type DropTable struct {
	Names        QualifiedNames
	IfExists     bool
	DropBehavior DropBehavior
}

DropTable represents a DROP TABLE statement.

func (*DropTable) Format

func (node *DropTable) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter 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 EvalContext

type EvalContext struct {
	NodeID roachpb.NodeID

	// Location references the *Location on the current Session.
	Location **time.Location

	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
	// 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.

func (*EvalContext) GetClusterTimestamp

func (ctx *EvalContext) GetClusterTimestamp() *DDecimal

GetClusterTimestamp retrieves the current cluster timestamp as per the evaluation context. The timestamp is guaranteed to be nonzero.

func (*EvalContext) GetLocation

func (ctx *EvalContext) GetLocation() *time.Location

GetLocation returns the session timezone.

func (*EvalContext) GetStmtTimestamp

func (ctx *EvalContext) GetStmtTimestamp() *DTimestamp

GetStmtTimestamp retrieves the current statement timestamp as per the evaluation context. The timestamp is guaranteed to be nonzero.

func (*EvalContext) GetTxnTimestamp

func (ctx *EvalContext) GetTxnTimestamp(precision time.Duration) *DTimestamp

GetTxnTimestamp retrieves the current transaction timestamp as per the evaluation context. The timestamp is guaranteed to be nonzero.

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) SetClusterTimestamp

func (ctx *EvalContext) SetClusterTimestamp(ts roachpb.Timestamp)

SetClusterTimestamp sets the corresponding timestamp in the EvalContext.

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 ExistsExpr

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

ExistsExpr represents an EXISTS expression.

func (*ExistsExpr) Eval

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

Eval implements the TypedExpr interface.

func (*ExistsExpr) Format

func (node *ExistsExpr) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (ExistsExpr) ReturnType

func (ta ExistsExpr) ReturnType() Datum

func (*ExistsExpr) String

func (node *ExistsExpr) String() string

func (*ExistsExpr) TypeCheck

func (expr *ExistsExpr) TypeCheck(ctx *SemaContext, desired Datum) (TypedExpr, error)

TypeCheck implements the Expr interface.

func (*ExistsExpr) Walk

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

Walk implements the Expr interface.

type Explain

type Explain struct {
	Options   []string
	Statement Statement
}

Explain represents an EXPLAIN statement.

func (*Explain) CopyNode

func (stmt *Explain) CopyNode() *Explain

CopyNode makes a copy of this Expr without recursing in any child Exprs.

func (*Explain) Format

func (node *Explain) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter 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

func (*Explain) WalkStmt

func (stmt *Explain) WalkStmt(v Visitor) Statement

WalkStmt is part of the WalkableStmt interface.

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 ctx 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.
	TypeCheck(ctx *SemaContext, desired Datum) (TypedExpr, error)
}

Expr represents an expression.

func ParseExprTraditional

func ParseExprTraditional(sql string) (Expr, error)

ParseExprTraditional is a short-hand for parseExpr(sql, Traditional)

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 WalkExpr

func WalkExpr(v Visitor, expr Expr) (newExpr Expr, changed bool)

WalkExpr traverses the nodes in an expression.

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(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (Exprs) String

func (node Exprs) String() string

type FamilyElem

type FamilyElem struct {
	Column Name
}

FamilyElem represents a column in a FAMILY constraint.

func (FamilyElem) Format

func (node FamilyElem) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

type FamilyElemList

type FamilyElemList []FamilyElem

FamilyElemList is list of FamilyElem.

func (FamilyElemList) Format

func (l FamilyElemList) Format(buf *bytes.Buffer, f FmtFlags)

Format pretty-prints the contained names separated by commas. Format implements the NodeFormatter interface.

type FamilyTableDef

type FamilyTableDef struct {
	Name    Name
	Columns FamilyElemList
}

FamilyTableDef represents a family definition within a CREATE TABLE statement.

func (*FamilyTableDef) Format

func (node *FamilyTableDef) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

type FloatColType

type FloatColType struct {
	Name string
	Prec int
}

FloatColType represents a REAL, DOUBLE or FLOAT type.

func (*FloatColType) Format

func (node *FloatColType) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (*FloatColType) String

func (node *FloatColType) String() string

type FmtFlags

type FmtFlags *fmtFlags

FmtFlags enables conditional formatting in the pretty-printer.

var FmtShowTypes FmtFlags = &fmtFlags{showTypes: true}

FmtShowTypes instructs the pretty-printer to annotate expressions with their resolved types.

var FmtSimple FmtFlags = &fmtFlags{showTypes: false}

FmtSimple instructs the pretty-printer to produce a straightforward representation, ideally using SQL syntax that makes prettyprint+parse idempotent.

type FuncExpr

type FuncExpr struct {
	Name  *QualifiedName
	Type  funcType
	Exprs Exprs
	// contains filtered or unexported fields
}

FuncExpr represents a function call.

func (*FuncExpr) CopyNode

func (expr *FuncExpr) CopyNode() *FuncExpr

CopyNode makes a copy of this Expr without recursing in any child Exprs.

func (*FuncExpr) Eval

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

Eval implements the TypedExpr interface.

func (*FuncExpr) Format

func (node *FuncExpr) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (FuncExpr) ReturnType

func (ta FuncExpr) ReturnType() Datum

func (*FuncExpr) String

func (node *FuncExpr) String() string

func (*FuncExpr) TypeCheck

func (expr *FuncExpr) TypeCheck(ctx *SemaContext, desired Datum) (TypedExpr, error)

TypeCheck implements the Expr interface.

func (*FuncExpr) Walk

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

Walk implements the Expr interface.

type Grant

type Grant struct {
	Privileges privilege.List
	Targets    TargetList
	Grantees   NameList
}

Grant represents a GRANT statement.

func (*Grant) Format

func (node *Grant) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter 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 GroupBy

type GroupBy []Expr

GroupBy represents a GROUP BY clause.

func (GroupBy) Format

func (node GroupBy) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter 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(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (IfExpr) ReturnType

func (ta IfExpr) ReturnType() Datum

func (*IfExpr) String

func (node *IfExpr) String() string

func (*IfExpr) TypeCheck

func (expr *IfExpr) TypeCheck(ctx *SemaContext, desired Datum) (TypedExpr, error)

TypeCheck implements the Expr interface.

func (*IfExpr) Walk

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

Walk implements the Expr interface.

type IndexElem

type IndexElem struct {
	Column    Name
	Direction Direction
}

IndexElem represents a column with a direction in a CREATE INDEX statement.

func (IndexElem) Format

func (node IndexElem) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

type IndexElemList

type IndexElemList []IndexElem

IndexElemList is list of IndexElem.

func NameListToIndexElems

func NameListToIndexElems(lst NameList) IndexElemList

NameListToIndexElems converts a NameList to an IndexElemList with all members using the `DefaultDirection`.

func (IndexElemList) Format

func (l IndexElemList) Format(buf *bytes.Buffer, f FmtFlags)

Format pretty-prints the contained names separated by commas. Format implements the NodeFormatter interface.

type IndexHints

type IndexHints struct {
	Index       Name
	NoIndexJoin bool
}

IndexHints represents "@<index_name>" or "@{param[,param]}" where param is one of:

• FORCE_INDEX=<index_name>
• NO_INDEX_JOIN

It is used optionally after a table name in SELECT statements.

func (*IndexHints) Format

func (n *IndexHints) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

type IndexTableDef

type IndexTableDef struct {
	Name    Name
	Columns IndexElemList
	Storing NameList
}

IndexTableDef represents an index definition within a CREATE TABLE statement.

func (*IndexTableDef) Format

func (node *IndexTableDef) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

type IndexedVar

type IndexedVar struct {
	Idx int
	// 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 (*IndexedVar) Eval

func (v *IndexedVar) Eval(ctx *EvalContext) (Datum, error)

Eval is part of the TypedExpr interface.

func (*IndexedVar) Format

func (v *IndexedVar) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (*IndexedVar) ReturnType

func (v *IndexedVar) ReturnType() Datum

ReturnType is part of the TypedExpr interface.

func (*IndexedVar) String

func (node *IndexedVar) String() string

func (*IndexedVar) TypeCheck

func (v *IndexedVar) TypeCheck(_ *SemaContext, desired Datum) (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)
	IndexedVarReturnType(idx int) Datum
	IndexedVarString(idx int) string
}

IndexedVarContainer provides the implementation of TypeCheck, Eval, and String for IndexedVars.

type IndexedVarHelper

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

IndexedVarHelper is a structure that helps with initialization of IndexVars.

func MakeIndexedVarHelper

func MakeIndexedVarHelper(container IndexedVarContainer, numVars int) IndexedVarHelper

MakeIndexedVarHelper initializes an IndexedVarHelper structure.

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) NumVars

func (h *IndexedVarHelper) NumVars() int

NumVars returns the number of variables the IndexedVarHelper was initialized for.

type Indirection

type Indirection []IndirectionElem

Indirection represents an indirection expression composed of a series of indirection elements.

func (Indirection) Format

func (i Indirection) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

type IndirectionElem

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

IndirectionElem is a single element in an indirection expression.

type Insert

type Insert struct {
	Table      TableExpr
	Columns    QualifiedNames
	Rows       *Select
	OnConflict *OnConflict
	Returning  ReturningExprs
}

Insert represents an INSERT statement.

func (*Insert) CopyNode

func (stmt *Insert) CopyNode() *Insert

CopyNode makes a copy of this Expr without recursing in any child Exprs.

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(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (*Insert) StatementTag

func (*Insert) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*Insert) StatementType

func (n *Insert) StatementType() StatementType

StatementType implements the Statement interface.

func (*Insert) String

func (n *Insert) String() string

func (*Insert) WalkStmt

func (stmt *Insert) WalkStmt(v Visitor) Statement

WalkStmt is part of the WalkableStmt interface.

type IntColType

type IntColType struct {
	Name string
	N    int
}

IntColType represents an INT, INTEGER, SMALLINT or BIGINT type.

func (*IntColType) Format

func (node *IntColType) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (*IntColType) IsSerial

func (node *IntColType) IsSerial() bool

IsSerial returns true when this column should be given a DEFAULT of a unique, incrementing function.

func (*IntColType) String

func (node *IntColType) String() string

type IntervalColType

type IntervalColType struct {
}

IntervalColType represents an INTERVAL type

func (*IntervalColType) Format

func (node *IntervalColType) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (*IntervalColType) String

func (node *IntervalColType) String() string

type IsOfTypeExpr

type IsOfTypeExpr struct {
	Not   bool
	Expr  Expr
	Types []ColumnType
	// 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(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (IsOfTypeExpr) ReturnType

func (ta IsOfTypeExpr) ReturnType() Datum

func (*IsOfTypeExpr) String

func (node *IsOfTypeExpr) String() string

func (*IsOfTypeExpr) TypeCheck

func (expr *IsOfTypeExpr) TypeCheck(ctx *SemaContext, desired Datum) (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
	SnapshotIsolation
	SerializableIsolation
)

IsolationLevel values

func (IsolationLevel) String

func (i IsolationLevel) String() string

type JoinCond

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

JoinCond represents a join condition.

type JoinTableExpr

type JoinTableExpr struct {
	Join  string
	Left  TableExpr
	Right TableExpr
	Cond  JoinCond
}

JoinTableExpr represents a TableExpr that's a JOIN operation.

func (*JoinTableExpr) Format

func (node *JoinTableExpr) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (*JoinTableExpr) String

func (node *JoinTableExpr) String() string

type Limit

type Limit struct {
	Offset, Count Expr
}

Limit represents a LIMIT clause.

func (*Limit) Format

func (node *Limit) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

type Name

type Name string

A Name is an SQL identifier.

func (Name) Format

func (n Name) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (Name) String

func (node Name) String() string

type NameIndirection

type NameIndirection Name

NameIndirection represents ".<name>" in an indirection expression.

func (NameIndirection) Format

func (n NameIndirection) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

type NameList

type NameList []string

A NameList is a list of identifier. TODO(tschottdorf): would be nicer to have []Name here but unless we want to introduce new types to the grammar, NameList([]string{...}) needs to work.

func (NameList) Format

func (l NameList) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (NameList) String

func (list NameList) String() string

type NodeFormatter

type NodeFormatter interface {
	// Format performs pretty-printing towards a bytes buffer. The
	// flags argument influences the results.
	Format(buf *bytes.Buffer, flags FmtFlags)
}

NodeFormatter is implemented by nodes that can be pretty-printed.

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(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (NotExpr) ReturnType

func (ta NotExpr) ReturnType() Datum

func (*NotExpr) String

func (node *NotExpr) String() string

func (*NotExpr) TypeCheck

func (expr *NotExpr) TypeCheck(ctx *SemaContext, desired Datum) (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(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (NullIfExpr) ReturnType

func (ta NullIfExpr) ReturnType() Datum

func (*NullIfExpr) String

func (node *NullIfExpr) String() string

func (*NullIfExpr) TypeCheck

func (expr *NullIfExpr) TypeCheck(ctx *SemaContext, desired Datum) (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 NumVal

type NumVal struct {
	constant.Value

	// We preserve the "original" string representation (before folding).
	OrigString string
	// contains filtered or unexported fields
}

NumVal represents a constant numeric value.

func (*NumVal) AvailableTypes

func (expr *NumVal) AvailableTypes() []Datum

AvailableTypes implements the Constant interface.

func (*NumVal) Format

func (expr *NumVal) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (*NumVal) ResolveAsType

func (expr *NumVal) ResolveAsType(ctx *SemaContext, typ Datum) (Datum, error)

ResolveAsType implements the Constant interface.

func (*NumVal) String

func (node *NumVal) String() string

func (*NumVal) TypeCheck

func (expr *NumVal) TypeCheck(ctx *SemaContext, desired Datum) (TypedExpr, error)

TypeCheck implements the Expr interface.

func (*NumVal) Walk

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

Walk implements the Expr interface.

type OnConflict

type OnConflict struct {
	Columns   NameList
	Exprs     UpdateExprs
	Where     *Where
	DoNothing bool
}

OnConflict represents an `ON CONFLICT (columns) 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(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

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(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (OrExpr) ReturnType

func (ta OrExpr) ReturnType() Datum

func (*OrExpr) String

func (node *OrExpr) String() string

func (*OrExpr) TypeCheck

func (expr *OrExpr) TypeCheck(ctx *SemaContext, desired Datum) (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 {
	Expr      Expr
	Direction Direction
}

Order represents an ordering expression.

func (*Order) Format

func (node *Order) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

type OrderBy

type OrderBy []*Order

OrderBy represents an ORDER By clause.

func (OrderBy) Format

func (node OrderBy) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

type OverlayExpr

type OverlayExpr struct {
	FuncExpr
}

OverlayExpr represents an overlay function call.

func (*OverlayExpr) Eval

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

Eval implements the TypedExpr interface.

func (*OverlayExpr) Format

func (node *OverlayExpr) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (OverlayExpr) ReturnType

func (ta OverlayExpr) ReturnType() Datum

func (*OverlayExpr) String

func (node *OverlayExpr) String() string

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(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (ParenExpr) ReturnType

func (ta ParenExpr) ReturnType() Datum

func (*ParenExpr) String

func (node *ParenExpr) String() string

func (*ParenExpr) TypeCheck

func (expr *ParenExpr) TypeCheck(ctx *SemaContext, desired Datum) (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(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter 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

func (*ParenSelect) WalkStmt

func (stmt *ParenSelect) WalkStmt(v Visitor) Statement

WalkStmt is part of the WalkableStmt interface.

type ParenTableExpr

type ParenTableExpr struct {
	Expr TableExpr
}

ParenTableExpr represents a parenthesized TableExpr.

func (*ParenTableExpr) Format

func (node *ParenTableExpr) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (*ParenTableExpr) String

func (node *ParenTableExpr) String() string

type Parser

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

Parser wraps a scanner, parser and other utilities present in the parser package.

func (*Parser) NormalizeExpr

func (p *Parser) NormalizeExpr(ctx *EvalContext, typedExpr TypedExpr) (TypedExpr, error)

NormalizeExpr is wrapper around ctx.NormalizeExpr which avoids allocation of a normalizeVisitor.

func (*Parser) Parse

func (p *Parser) Parse(sql string, syntax Syntax) (stmts StatementList, err error)

Parse parses the sql and returns a list of statements.

type Placeholder

type Placeholder struct {
	Name string
}

Placeholder represents a named placeholder.

func (Placeholder) Format

func (node Placeholder) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (Placeholder) String

func (node Placeholder) String() string

func (Placeholder) TypeCheck

func (expr Placeholder) TypeCheck(ctx *SemaContext, desired Datum) (TypedExpr, error)

TypeCheck implements the Expr interface.

func (Placeholder) Variable

func (Placeholder) Variable()

Variable implements the VariableExpr interface.

func (Placeholder) Walk

func (expr Placeholder) Walk(_ Visitor) Expr

Walk implements the Expr interface.

type PlaceholderInfo

type PlaceholderInfo struct {
	Values QueryArguments
	Types  PlaceholderTypes
}

PlaceholderInfo defines the interface to SQL placeholders.

func NewPlaceholderInfo

func NewPlaceholderInfo() *PlaceholderInfo

NewPlaceholderInfo constructs an empty PlaceholderInfo.

func (*PlaceholderInfo) Assign

func (p *PlaceholderInfo) Assign(src *PlaceholderInfo)

Assign resets the PlaceholderInfo to the contents of src. If src is nil, the map is cleared.

func (*PlaceholderInfo) Clear

func (p *PlaceholderInfo) Clear()

Clear resets the placeholder info map.

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, and if so, whether the placeholder's type remains unset or not.

func (*PlaceholderInfo) SetType

func (p *PlaceholderInfo) SetType(name string, typ Datum) error

SetType assignes a known type to a placeholder. Reports an error if another type was previously assigned.

func (*PlaceholderInfo) SetTypes

func (p *PlaceholderInfo) SetTypes(src PlaceholderTypes)

SetTypes resets the type and values in the map and replaces the types map by an alias to src. If src is nil, the map is cleared. The types map is aliased because the invoking code from pgwire/v3.go for sql.Prepare needs to receive the updated type assignments after Prepare completes.

func (*PlaceholderInfo) SetValue

func (p *PlaceholderInfo) SetValue(name string, val Datum)

SetValue assigns a known value to a placeholder. If no type is known yet, it is inferred from the assigned value.

func (*PlaceholderInfo) Type

func (p *PlaceholderInfo) Type(name string) (Datum, bool)

Type returns the known type of a placeholder. Returns false in the 2nd value if the placeholder is not typed.

func (*PlaceholderInfo) Value

func (p *PlaceholderInfo) Value(name string) (Datum, 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 map[string]Datum

PlaceholderTypes relates placeholder names to their resolved type.

func (PlaceholderTypes) ProcessPlaceholderAnnotations

func (p PlaceholderTypes) ProcessPlaceholderAnnotations(stmt Statement) 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 an inferred type in the provided args map which conflicts with the explicit type annotation type, an error will be thrown.
• the placeholder is the subject to an implicit type annotation, meaning that it is not subject to an explicit type annotation, and that in all occurrences of the placeholder, it is subject to a cast to the same type. If it is subject to casts of multiple types, no error will be thrown, but the placeholder type will not be inferred. If a type has already been assigned for the placeholder in the provided args map, no error will be thrown, and the placeholder will keep it's previously inferred type.

TODO(nvanbenschoten) Add support for explicit placeholder annotations. TODO(nvanbenschoten) Can this visitor and map be preallocated (like normalizeVisitor)?

type PrimaryKeyConstraint

type PrimaryKeyConstraint struct{}

PrimaryKeyConstraint represents NULL on a column.

type QualifiedName

type QualifiedName struct {
	Base     Name
	Indirect Indirection
	// contains filtered or unexported fields
}

QualifiedName is a base name and an optional indirection expression.

func StarExpr

func StarExpr() *QualifiedName

StarExpr is a convenience function that represents an unqualified "*".

func (*QualifiedName) ClearString

func (node *QualifiedName) ClearString()

ClearString causes String to return the current (possibly normalized) name instead of the original name (used for testing).

func (*QualifiedName) Column

func (node *QualifiedName) Column() string

Column returns the column portion of the name. Note that the returned string is not quoted even if the name is a keyword.

func (*QualifiedName) Database

func (node *QualifiedName) Database() string

Database returns the database portion of the name. Note that the returned string is not quoted even if the name is a keyword.

func (*QualifiedName) Eval

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

Eval implements the TypedExpr interface.

func (*QualifiedName) Format

func (node *QualifiedName) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (*QualifiedName) IsStar

func (node *QualifiedName) IsStar() bool

IsStar returns true iff the qualified name contains matches "".* or table.*.

func (*QualifiedName) NormalizeColumnName

func (node *QualifiedName) NormalizeColumnName() error

NormalizeColumnName normalizes the qualified name to contain a table name as prefix, returning an error if unable to do so or if the name is not a valid column name (e.g. it contains too many indirections). If normalization occurred, the modified qualified name will have n.Base == "" to indicate no explicit table was specified. The incoming qualified name should have one of the following forms:

*
table.*
column
column[array-indirection]
table.column
table.column[array-indirection]

Note that "table" may be the empty string. On successful normalization the qualified name will have one of the forms:

table.*
table.column
table.column[array-indirection]

func (*QualifiedName) NormalizeTableName

func (node *QualifiedName) NormalizeTableName(database string) error

NormalizeTableName normalizes the qualified name to contain a database name as prefix, returning an error if unable to do so or if the name is not a valid table name (e.g. it contains an array indirection). The incoming qualified name should have one of the following forms:

table
database.table
table@index
database.table@index

On successful normalization, the qualified name will have the form:

database.table@index

func (*QualifiedName) QualifyWithDatabase

func (node *QualifiedName) QualifyWithDatabase(database string) error

QualifyWithDatabase adds an indirection for the database, if it's missing. It transforms: table -> database.table table@index -> database.table@index * -> database.*

func (*QualifiedName) ReturnType

func (node *QualifiedName) ReturnType() Datum

ReturnType implements the TypedExpr interface.

func (*QualifiedName) String

func (node *QualifiedName) String() string

func (*QualifiedName) Table

func (node *QualifiedName) Table() string

Table returns the table portion of the name. Note that the returned string is not quoted even if the name is a keyword.

func (*QualifiedName) TypeCheck

func (expr *QualifiedName) TypeCheck(_ *SemaContext, desired Datum) (TypedExpr, error)

TypeCheck implements the Expr interface.

func (*QualifiedName) Variable

func (*QualifiedName) Variable()

Variable implements the VariableExpr interface.

func (*QualifiedName) Walk

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

Walk implements the Expr interface.

type QualifiedNames

type QualifiedNames []*QualifiedName

QualifiedNames represents a command separated list (see the String method) of qualified names.

func (QualifiedNames) Format

func (n QualifiedNames) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

type QueryArguments

type QueryArguments map[string]Datum

QueryArguments relates placeholder names to their provided query argument.

type RangeCond

type RangeCond struct {
	Not      bool
	Left     Expr
	From, To Expr
	// contains filtered or unexported fields
}

RangeCond represents a BETWEEN or a NOT BETWEEN expression.

func (*RangeCond) Eval

func (expr *RangeCond) Eval(_ *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*RangeCond) Format

func (node *RangeCond) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (RangeCond) ReturnType

func (ta RangeCond) ReturnType() Datum

func (*RangeCond) String

func (node *RangeCond) String() string

func (*RangeCond) TypeCheck

func (expr *RangeCond) TypeCheck(ctx *SemaContext, desired Datum) (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) TypedLeft

func (node *RangeCond) TypedLeft() TypedExpr

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

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 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 NewRegexpCache

func NewRegexpCache(size int) *RegexpCache

NewRegexpCache creates a new RegexpCache of the given size. The underlying cache internally uses a hash map, so lookups are cheap.

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 ReleaseSavepoint

type ReleaseSavepoint struct {
	Savepoint string
}

ReleaseSavepoint represents a RELEASE SAVEPOINT <name> statement.

func (*ReleaseSavepoint) Format

func (node *ReleaseSavepoint) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter 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 RenameColumn

type RenameColumn struct {
	Table   *QualifiedName
	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(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter 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(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter 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    *TableNameWithIndex
	NewName  Name
	IfExists bool
}

RenameIndex represents a RENAME INDEX statement.

func (*RenameIndex) Format

func (node *RenameIndex) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter 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     *QualifiedName
	NewName  *QualifiedName
	IfExists bool
}

RenameTable represents a RENAME TABLE statement.

func (*RenameTable) Format

func (node *RenameTable) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (*RenameTable) StatementTag

func (*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 ReturningExprs

type ReturningExprs SelectExprs

ReturningExprs represents RETURNING expressions.

func (ReturningExprs) Format

func (r ReturningExprs) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (ReturningExprs) StatementType

func (r ReturningExprs) StatementType() StatementType

StatementType implements the Statement interface.

type Revoke

type Revoke struct {
	Privileges privilege.List
	Targets    TargetList
	Grantees   NameList
}

Revoke represents a REVOKE statements. PrivilegeList and TargetList are defined in grant.go

func (*Revoke) Format

func (node *Revoke) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter 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 RollbackToSavepoint

type RollbackToSavepoint struct {
	Savepoint string
}

RollbackToSavepoint represents a ROLLBACK TO SAVEPOINT <name> statement.

func (*RollbackToSavepoint) Format

func (node *RollbackToSavepoint) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter 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(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter 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 Savepoint

type Savepoint struct {
	Name string
}

Savepoint represents a SAVEPOINT <name> statement.

func (*Savepoint) Format

func (node *Savepoint) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter 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 Select

type Select struct {
	Select  SelectStatement
	OrderBy OrderBy
	Limit   *Limit
}

Select represents a SelectStatement with an ORDER and/or LIMIT.

func (*Select) CopyNode

func (stmt *Select) CopyNode() *Select

CopyNode makes a copy of this Expr without recursing in any child Exprs.

func (*Select) Format

func (node *Select) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter 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

func (*Select) WalkStmt

func (stmt *Select) WalkStmt(v Visitor) Statement

WalkStmt is part of the WalkableStmt interface.

type SelectClause

type SelectClause struct {
	Distinct bool
	Exprs    SelectExprs
	From     TableExprs
	Where    *Where
	GroupBy  GroupBy
	Having   *Where
	Lock     string
	// contains filtered or unexported fields
}

SelectClause represents a SELECT statement.

func (*SelectClause) CopyNode

func (stmt *SelectClause) CopyNode() *SelectClause

CopyNode makes a copy of this Expr without recursing in any child Exprs.

func (*SelectClause) Format

func (node *SelectClause) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter 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

func (*SelectClause) WalkStmt

func (stmt *SelectClause) WalkStmt(v Visitor) Statement

WalkStmt is part of the WalkableStmt interface.

type SelectExpr

type SelectExpr struct {
	Expr Expr
	As   Name
}

SelectExpr represents a SELECT expression.

func (SelectExpr) Format

func (node SelectExpr) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

type SelectExprs

type SelectExprs []SelectExpr

SelectExprs represents SELECT expressions.

func (SelectExprs) Format

func (node SelectExprs) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

type SelectStatement

type SelectStatement interface {
	Statement
	// contains filtered or unexported methods
}

SelectStatement any SELECT statement.

type SemaContext

type SemaContext struct {
	// Placeholders relates placeholder names to their type and, later, value.
	Placeholders *PlaceholderInfo

	// Location references the *Location on the current Session.
	Location **time.Location
}

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.

type Set

type Set struct {
	Name   *QualifiedName
	Values Exprs
}

Set represents a SET statement.

func (*Set) CopyNode

func (stmt *Set) CopyNode() *Set

CopyNode makes a copy of this Expr without recursing in any child Exprs.

func (*Set) Format

func (node *Set) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (*Set) StatementTag

func (*Set) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*Set) StatementType

func (*Set) StatementType() StatementType

StatementType implements the Statement interface.

func (*Set) String

func (n *Set) String() string

func (*Set) WalkStmt

func (stmt *Set) WalkStmt(v Visitor) Statement

WalkStmt is part of the WalkableStmt interface.

type SetDefaultIsolation

type SetDefaultIsolation struct {
	Isolation IsolationLevel
}

SetDefaultIsolation represents a SET SESSION CHARACTERISTICS AS TRANSACTION statement.

func (*SetDefaultIsolation) Format

func (node *SetDefaultIsolation) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (*SetDefaultIsolation) StatementTag

func (*SetDefaultIsolation) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*SetDefaultIsolation) StatementType

func (*SetDefaultIsolation) StatementType() StatementType

StatementType implements the Statement interface.

func (*SetDefaultIsolation) String

func (n *SetDefaultIsolation) String() string

type SetTimeZone

type SetTimeZone struct {
	Value Expr
}

SetTimeZone represents a SET TIME ZONE statement.

func (*SetTimeZone) Format

func (node *SetTimeZone) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (*SetTimeZone) StatementTag

func (*SetTimeZone) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*SetTimeZone) StatementType

func (*SetTimeZone) StatementType() StatementType

StatementType implements the Statement interface.

func (*SetTimeZone) String

func (n *SetTimeZone) String() string

type SetTransaction

type SetTransaction struct {
	Isolation    IsolationLevel
	UserPriority UserPriority
}

SetTransaction represents a SET TRANSACTION statement.

func (*SetTransaction) Format

func (node *SetTransaction) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter 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 Show

type Show struct {
	Name string
}

Show represents a SHOW statement.

func (*Show) Format

func (node *Show) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (*Show) StatementTag

func (*Show) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*Show) StatementType

func (*Show) StatementType() StatementType

StatementType implements the Statement interface.

func (*Show) String

func (n *Show) String() string

type ShowColumns

type ShowColumns struct {
	Table *QualifiedName
}

ShowColumns represents a SHOW COLUMNS statement.

func (*ShowColumns) Format

func (node *ShowColumns) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter 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 ShowCreateTable

type ShowCreateTable struct {
	Table *QualifiedName
}

ShowCreateTable represents a SHOW CREATE TABLE statement.

func (*ShowCreateTable) Format

func (node *ShowCreateTable) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (*ShowCreateTable) StatementTag

func (*ShowCreateTable) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ShowCreateTable) StatementType

func (*ShowCreateTable) StatementType() StatementType

StatementType implements the Statement interface.

func (*ShowCreateTable) String

func (n *ShowCreateTable) String() string

type ShowDatabases

type ShowDatabases struct {
}

ShowDatabases represents a SHOW DATABASES statement.

func (*ShowDatabases) Format

func (node *ShowDatabases) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter 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 ShowGrants

type ShowGrants struct {
	Targets  *TargetList
	Grantees NameList
}

ShowGrants represents a SHOW GRANTS statement. TargetList is defined in grant.go.

func (*ShowGrants) Format

func (node *ShowGrants) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter 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 ShowIndex

type ShowIndex struct {
	Table *QualifiedName
}

ShowIndex represents a SHOW INDEX statement.

func (*ShowIndex) Format

func (node *ShowIndex) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (*ShowIndex) StatementTag

func (*ShowIndex) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*ShowIndex) StatementType

func (*ShowIndex) StatementType() StatementType

StatementType implements the Statement interface.

func (*ShowIndex) String

func (n *ShowIndex) String() string

type ShowTables

type ShowTables struct {
	Name *QualifiedName
}

ShowTables represents a SHOW TABLES statement.

func (*ShowTables) Format

func (node *ShowTables) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter 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 SimpleTableExpr

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

SimpleTableExpr represents a simple table expression.

type SimpleVisitFn

type SimpleVisitFn func(expr Expr) (err error, recurse bool, newExpr Expr)

SimpleVisitFn is a function that is run for every node in the VisitPre stage; see SimpleVisit.

type SingleType

type SingleType struct {
	Typ Datum
}

SingleType is a typeList implementation which accepts a single argument of type typ. It is logically identical to an ArgTypes implementation with length 1, but avoids the slice allocation.

type StarIndirection

type StarIndirection string

StarIndirection represents ".*" in an indirection expression.

func (StarIndirection) Format

func (s StarIndirection) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

type Statement

type Statement interface {
	fmt.Stringer
	NodeFormatter
	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 ParseOne

func ParseOne(sql string, syntax Syntax) (Statement, error)

ParseOne parses a sql statement.

func ParseOneTraditional

func ParseOneTraditional(sql string) (Statement, error)

ParseOneTraditional is short-hand for ParseOne(sql, Traditional)

func WalkStmt

func WalkStmt(v Visitor, stmt Statement) (newStmt Statement, changed bool)

WalkStmt walks the entire parsed stmt calling WalkExpr on each expression, and replacing each expression with the one returned by WalkExpr.

type StatementList

type StatementList []Statement

StatementList is a list of statements.

func (StatementList) Format

func (l StatementList) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (StatementList) String

func (l StatementList) String() string

type StatementType

type StatementType int

StatementType 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 StatementType = iota
	// DDL indicates that the statement mutates the database schema.
	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
)

type StrVal

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

StrVal represents a constant string value.

func (*StrVal) AvailableTypes

func (expr *StrVal) AvailableTypes() []Datum

AvailableTypes implements the Constant interface.

func (*StrVal) Format

func (expr *StrVal) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (*StrVal) ResolveAsType

func (expr *StrVal) ResolveAsType(ctx *SemaContext, typ Datum) (Datum, error)

ResolveAsType implements the Constant interface.

func (*StrVal) String

func (node *StrVal) String() string

func (*StrVal) TypeCheck

func (expr *StrVal) TypeCheck(ctx *SemaContext, desired Datum) (TypedExpr, error)

TypeCheck implements the Expr interface.

func (*StrVal) Walk

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

Walk implements the Expr interface.

type StringColType

type StringColType struct {
	Name string
	N    int
}

StringColType represents a STRING, CHAR or VARCHAR type.

func (*StringColType) Format

func (node *StringColType) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (*StringColType) String

func (node *StringColType) String() string

type Subquery

type Subquery struct {
	Select SelectStatement
}

Subquery represents a subquery.

func (*Subquery) Eval

func (expr *Subquery) Eval(_ *EvalContext) (Datum, error)

Eval implements the TypedExpr interface.

func (*Subquery) Format

func (node *Subquery) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (*Subquery) ReturnType

func (node *Subquery) ReturnType() Datum

ReturnType implements the TypedExpr interface.

func (*Subquery) String

func (node *Subquery) String() string

func (*Subquery) TypeCheck

func (expr *Subquery) TypeCheck(_ *SemaContext, desired Datum) (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.

type Syntax

type Syntax int

Syntax is an enum of the various syntax types.

const (
	// Implicit default, must stay in the zero-value position.
	Traditional Syntax = iota
	Modern
)

func (Syntax) String

func (i Syntax) String() string

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(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

type TableExpr

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

TableExpr represents a table expression.

type TableExprs

type TableExprs []TableExpr

TableExprs represents a list of table expressions.

func (TableExprs) Format

func (node TableExprs) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

type TableNameWithIndex

type TableNameWithIndex struct {
	Table *QualifiedName
	Index Name
}

TableNameWithIndex represents a "table@index", used in statements that specifically refer to an index.

func (*TableNameWithIndex) Format

func (n *TableNameWithIndex) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

type TableNameWithIndexList

type TableNameWithIndexList []*TableNameWithIndex

TableNameWithIndexList is a list of indexes.

func (TableNameWithIndexList) Format

func (n TableNameWithIndexList) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

type TargetList

type TargetList struct {
	Databases NameList
	Tables    QualifiedNames
}

TargetList represents a list of targets. Only one field may be non-nil.

func (TargetList) Format

func (tl TargetList) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

type TargetType

type TargetType int

TargetType represents the type of target.

const (
	TargetDatabase TargetType = iota
)

Enums for target and privilege types.

func (TargetType) String

func (tt TargetType) String() string

type TimestampColType

type TimestampColType struct {
}

TimestampColType represents a TIMESTAMP type.

func (*TimestampColType) Format

func (node *TimestampColType) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (*TimestampColType) String

func (node *TimestampColType) String() string

type TimestampTZColType

type TimestampTZColType struct {
}

TimestampTZColType represents a TIMESTAMP type.

func (*TimestampTZColType) Format

func (node *TimestampTZColType) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (*TimestampTZColType) String

func (node *TimestampTZColType) String() string

type Truncate

type Truncate struct {
	Tables       QualifiedNames
	DropBehavior DropBehavior
}

Truncate represents a TRUNCATE statement.

func (*Truncate) Format

func (node *Truncate) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter 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
	// contains filtered or unexported fields
}

Tuple represents a parenthesized list of expressions.

func (*Tuple) Eval

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

Eval implements the TypedExpr interface.

func (*Tuple) Format

func (node *Tuple) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (*Tuple) ReturnType

func (node *Tuple) ReturnType() Datum

ReturnType implements the TypedExpr interface.

func (*Tuple) String

func (node *Tuple) String() string

func (*Tuple) TypeCheck

func (expr *Tuple) TypeCheck(ctx *SemaContext, desired Datum) (TypedExpr, error)

TypeCheck implements the Expr interface.

func (*Tuple) Walk

func (expr *Tuple) Walk(v 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, QualifiedName or Subquery. These nodes
	// should be replaced prior to expression evaluation by an appropriate
	// WalkExpr. For example, Placeholder should be replace by the argument passed from
	// the client.
	Eval(*EvalContext) (Datum, error)
	// ReturnType provides the type of the TypedExpr, which is the type of Datum that
	// the TypedExpr will return when evaluated.
	ReturnType() Datum
}

TypedExpr represents a well-typed expression.

func TypeCheck

func TypeCheck(expr Expr, ctx *SemaContext, desired Datum) (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.

func TypeCheckAndRequire

func TypeCheckAndRequire(expr Expr, ctx *SemaContext, required Datum, 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 TypeConstants

func TypeConstants(expr Expr) (TypedExpr, error)

TypeConstants type checks all Constant literal expressions, resolving them as the Datum representations of their values. Before doing so, it first folds all numeric constants.

This means that Constants will become TypedExprs so that they can be used in contexts which expect a TypedExpr tree (such as Normalization). As such, the function is primarily intended for use while testing expressions where full type checking is not desired.

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

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 (*UnaryExpr) Eval

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

Eval implements the TypedExpr interface.

func (*UnaryExpr) Format

func (node *UnaryExpr) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (UnaryExpr) ReturnType

func (ta UnaryExpr) ReturnType() Datum

func (*UnaryExpr) String

func (node *UnaryExpr) String() string

func (*UnaryExpr) TypeCheck

func (expr *UnaryExpr) TypeCheck(ctx *SemaContext, desired Datum) (TypedExpr, error)

TypeCheck implements the Expr interface.

func (*UnaryExpr) Walk

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

Walk implements the Expr interface.

type UnaryOp

type UnaryOp struct {
	Typ        Datum
	ReturnType Datum
	// contains filtered or unexported fields
}

UnaryOp is a unary operator.

type UnaryOperator

type UnaryOperator int

UnaryOperator represents a unary operator.

const (
	UnaryPlus UnaryOperator = iota
	UnaryMinus
	UnaryComplement
)

UnaryExpr.Operator

func (UnaryOperator) String

func (i UnaryOperator) 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(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter 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{}

UniqueConstraint represents UNIQUE on a column.

type UniqueConstraintTableDef

type UniqueConstraintTableDef struct {
	IndexTableDef
	PrimaryKey bool
}

UniqueConstraintTableDef represents a unique constraint within a CREATE TABLE statement.

func (*UniqueConstraintTableDef) Format

func (node *UniqueConstraintTableDef) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

type Update

type Update struct {
	Table     TableExpr
	Exprs     UpdateExprs
	Where     *Where
	Returning ReturningExprs
}

Update represents an UPDATE statement.

func (*Update) CopyNode

func (stmt *Update) CopyNode() *Update

CopyNode makes a copy of this Expr without recursing in any child Exprs.

func (*Update) Format

func (node *Update) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

func (*Update) StatementTag

func (*Update) StatementTag() string

StatementTag returns a short string identifying the type of statement.

func (*Update) StatementType

func (n *Update) StatementType() StatementType

StatementType implements the Statement interface.

func (*Update) String

func (n *Update) String() string

func (*Update) WalkStmt

func (stmt *Update) WalkStmt(v Visitor) Statement

WalkStmt is part of the WalkableStmt interface.

type UpdateExpr

type UpdateExpr struct {
	Tuple bool
	Names QualifiedNames
	Expr  Expr
}

UpdateExpr represents an update expression.

func (*UpdateExpr) Format

func (node *UpdateExpr) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

type UpdateExprs

type UpdateExprs []*UpdateExpr

UpdateExprs represents a list of update expressions.

func (UpdateExprs) Format

func (node UpdateExprs) Format(buf *bytes.Buffer, f FmtFlags)

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 (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(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

type ValuesClause

type ValuesClause struct {
	Tuples []*Tuple
}

ValuesClause represents a VALUES clause.

func (*ValuesClause) Format

func (node *ValuesClause) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter 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

func (*ValuesClause) WalkStmt

func (stmt *ValuesClause) WalkStmt(v Visitor) Statement

WalkStmt is part of the WalkableStmt interface.

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 {
	Typ Datum
}

VariadicType is a typeList implementation which accepts any number of arguments and matches when each argument is either NULL or of the type typ.

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 WalkableStmt

type WalkableStmt interface {
	Statement
	WalkStmt(Visitor) Statement
}

WalkableStmt is implemented by statements that can appear inside an expression (selects) or we want to start a walk from (using WalkStmt).

type When

type When struct {
	Cond Expr
	Val  Expr
}

When represents a WHEN sub-expression.

func (*When) Format

func (node *When) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.

type Where

type Where struct {
	Type string
	Expr Expr
}

Where represents a WHERE or HAVING clause.

func (*Where) Format

func (node *Where) Format(buf *bytes.Buffer, f FmtFlags)

Format implements the NodeFormatter interface.