scalar

package
v3.6.0 Latest Latest
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 Go to latest Published: May 21, 2023 License: MPL-2.0, MIT Imports: 15 Imported by: 0

README

CloudQuery Type System

This directory is heavily based on jackc/pgtype and modified per CQ needs and thus fall under the original MIT license and copyright.

Documentation

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func AppendToBuilder 

func AppendToBuilder(bldr array.Builder, s Scalar)

func AppendToRecordBuilder 

func AppendToRecordBuilder(bldr *array.RecordBuilder, vector Vector)

Types

type Binary 

type Binary struct {
	Valid bool
	Value []byte
}

func (*Binary) DataType 

func (*Binary) DataType() arrow.DataType

func (*Binary) Equal 

func (s *Binary) Equal(rhs Scalar) bool

func (*Binary) IsValid 

func (s *Binary) IsValid() bool

func (*Binary) Set 

func (s *Binary) Set(val any) error

func (*Binary) String 

func (s *Binary) String() string

type Bool 

type Bool struct {
	Valid bool
	Value bool
}

func (*Bool) DataType 

func (*Bool) DataType() arrow.DataType

func (*Bool) Equal 

func (s *Bool) Equal(rhs Scalar) bool

func (*Bool) IsValid 

func (s *Bool) IsValid() bool

func (*Bool) Set 

func (s *Bool) Set(val any) error

func (*Bool) String 

func (s *Bool) String() string

type Float32 

type Float32 struct {
	Valid bool
	Value float32
}

func (*Float32) DataType 

func (*Float32) DataType() arrow.DataType

func (*Float32) Equal 

func (s *Float32) Equal(rhs Scalar) bool

func (*Float32) IsValid 

func (s *Float32) IsValid() bool

func (*Float32) Set 

func (s *Float32) Set(val any) error

func (*Float32) String 

func (s *Float32) String() string

type Float64 

type Float64 struct {
	Valid bool
	Value float64
}

func (*Float64) DataType 

func (*Float64) DataType() arrow.DataType

func (*Float64) Equal 

func (s *Float64) Equal(rhs Scalar) bool

func (*Float64) IsValid 

func (s *Float64) IsValid() bool

func (*Float64) Set 

func (s *Float64) Set(val any) error

func (*Float64) String 

func (s *Float64) String() string

type Inet 

type Inet struct {
	Valid bool
	Value *net.IPNet
}

func (*Inet) DataType 

func (*Inet) DataType() arrow.DataType

func (*Inet) Equal 

func (s *Inet) Equal(rhs Scalar) bool

func (*Inet) IsValid 

func (s *Inet) IsValid() bool

func (*Inet) Set 

func (s *Inet) Set(val any) error

func (*Inet) String 

func (s *Inet) String() string

type Int64 

type Int64 struct {
	Valid bool
	Value int64
}

func (*Int64) DataType 

func (*Int64) DataType() arrow.DataType

func (*Int64) Equal 

func (s *Int64) Equal(rhs Scalar) bool

func (*Int64) IsValid 

func (s *Int64) IsValid() bool

func (*Int64) Set 

func (s *Int64) Set(val any) error

func (*Int64) String 

func (s *Int64) String() string

type JSON 

type JSON struct {
	Valid bool
	Value []byte
}

func (*JSON) DataType 

func (*JSON) DataType() arrow.DataType

func (*JSON) Equal 

func (s *JSON) Equal(rhs Scalar) bool

func (*JSON) IsValid 

func (s *JSON) IsValid() bool

func (*JSON) Set 

func (s *JSON) Set(val any) error

func (*JSON) String 

func (s *JSON) String() string

type LargeBinary 

type LargeBinary struct {
	Binary
}

func (*LargeBinary) DataType 

func (*LargeBinary) DataType() arrow.DataType

type LargeString 

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

func (*LargeString) DataType 

func (*LargeString) DataType() arrow.DataType

type List 

type List struct {
	Valid bool
	Value Vector
	Type  arrow.DataType
}

func (*List) DataType 

func (s *List) DataType() arrow.DataType

func (*List) Equal 

func (s *List) Equal(rhs Scalar) bool

func (*List) IsValid 

func (s *List) IsValid() bool

func (*List) Set 

func (s *List) Set(val any) error

func (*List) String 

func (s *List) String() string

type Mac 

type Mac struct {
	Valid bool
	Value net.HardwareAddr
}

func (*Mac) DataType 

func (*Mac) DataType() arrow.DataType

func (*Mac) Equal 

func (s *Mac) Equal(rhs Scalar) bool

func (*Mac) IsValid 

func (s *Mac) IsValid() bool

func (*Mac) Set 

func (s *Mac) Set(val any) error

func (*Mac) String 

func (s *Mac) String() string

type Scalar 

type Scalar interface {
	fmt.Stringer
	// IsValid returns true if the value is non-null, otherwise false.
	IsValid() bool
	// The datatype of the value in this scalar
	DataType() arrow.DataType
	// Performs cheap validation checks, returns nil if successful
	// Validate() error
	// tries to set the value of the scalar to the given value
	Set(val any) error
	Equal(other Scalar) bool
}

Scalar represents a single value of a specific DataType as opposed to an array.

Scalars are useful for passing single value inputs to compute functions (not yet implemented) or for representing individual array elements, (with a non-trivial cost though).

func NewScalar 

func NewScalar(dt arrow.DataType) Scalar

type String 

type String struct {
	Valid bool
	Value string
}

func (*String) DataType 

func (*String) DataType() arrow.DataType

func (*String) Equal 

func (s *String) Equal(rhs Scalar) bool

func (*String) IsValid 

func (s *String) IsValid() bool

func (*String) Set 

func (s *String) Set(val any) error

func (*String) String 

func (s *String) String() string

type Timestamp 

type Timestamp struct {
	Valid bool
	Value time.Time
}

func (*Timestamp) DataType 

func (*Timestamp) DataType() arrow.DataType

func (*Timestamp) DecodeText 

func (s *Timestamp) DecodeText(src []byte) error

func (*Timestamp) Equal 

func (s *Timestamp) Equal(rhs Scalar) bool

func (*Timestamp) IsValid 

func (s *Timestamp) IsValid() bool

func (*Timestamp) Set 

func (s *Timestamp) Set(val any) error

func (*Timestamp) String 

func (s *Timestamp) String() string

type UUID 

type UUID struct {
	Valid bool
	Value uuid.UUID
}

func (*UUID) DataType 

func (*UUID) DataType() arrow.DataType

func (*UUID) Equal 

func (s *UUID) Equal(rhs Scalar) bool

func (*UUID) IsValid 

func (s *UUID) IsValid() bool

func (*UUID) Set 

func (s *UUID) Set(src any) error

func (*UUID) String 

func (s *UUID) String() string

type Uint64 

type Uint64 struct {
	Valid bool
	Value uint64
}

func (*Uint64) DataType 

func (*Uint64) DataType() arrow.DataType

func (*Uint64) Equal 

func (s *Uint64) Equal(rhs Scalar) bool

func (*Uint64) IsValid 

func (s *Uint64) IsValid() bool

func (*Uint64) Set 

func (s *Uint64) Set(val any) error

func (*Uint64) String 

func (s *Uint64) String() string

type ValidationError 

type ValidationError struct {
	Err   error
	Msg   string
	Type  arrow.DataType
	Value any
}

func (*ValidationError) Error 

func (e *ValidationError) Error() string

func (*ValidationError) MaskedError 

func (e *ValidationError) MaskedError() string

this prints the error without the value

func (*ValidationError) Unwrap 

func (e *ValidationError) Unwrap() error

type Vector 

type Vector []Scalar

func (Vector) Equal 

func (v Vector) Equal(r Vector) bool

Source Files

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