window

package
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 Go to latest Published: Jul 31, 2024 License: Apache-2.0 Imports: 7 Imported by: 0

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Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func NewDenseRank 

func NewDenseRank() sql.Expression

func NewFirstValue 

func NewFirstValue(e sql.Expression) sql.Expression

func NewLastValue 

func NewLastValue(e sql.Expression) sql.Expression

func NewPercentRank 

func NewPercentRank() sql.Expression

func NewRank 

func NewRank() sql.Expression

func NewRowNumber 

func NewRowNumber() sql.Expression

Types

type DenseRank 

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

func (*DenseRank) Children 

func (p *DenseRank) Children() []sql.Expression

Children implements sql.Expression

func (*DenseRank) CollationCoercibility 

func (*DenseRank) CollationCoercibility(ctx *sql.Context) (collation sql.CollationID, coercibility byte)

CollationCoercibility implements the interface sql.CollationCoercible.

func (*DenseRank) DebugString 

func (p *DenseRank) DebugString() string

func (*DenseRank) Description 

func (p *DenseRank) Description() string

Description implements sql.FunctionExpression

func (*DenseRank) Eval 

func (p *DenseRank) Eval(ctx *sql.Context, row sql.Row) (interface{}, error)

Eval implements sql.Expression

func (*DenseRank) FunctionName 

func (p *DenseRank) FunctionName() string

FunctionName implements sql.FunctionExpression

func (*DenseRank) Id 

func (p *DenseRank) Id() sql.ColumnId

Id implements sql.IdExpression

func (*DenseRank) IsNullable 

func (p *DenseRank) IsNullable() bool

IsNullable implements sql.Expression

func (*DenseRank) NewWindowFunction 

func (p *DenseRank) NewWindowFunction() (sql.WindowFunction, error)

func (*DenseRank) Resolved 

func (p *DenseRank) Resolved() bool

func (*DenseRank) String 

func (p *DenseRank) String() string

func (*DenseRank) Type 

func (p *DenseRank) Type() sql.Type

Type implements sql.Expression

func (*DenseRank) Window 

func (p *DenseRank) Window() *sql.WindowDefinition

Window implements sql.WindowExpression

func (*DenseRank) WithChildren 

func (p *DenseRank) WithChildren(children ...sql.Expression) (sql.Expression, error)

WithChildren implements sql.Expression

func (*DenseRank) WithId 

func (p *DenseRank) WithId(id sql.ColumnId) sql.IdExpression

WithId implements sql.IdExpression

func (*DenseRank) WithWindow 

func (p *DenseRank) WithWindow(window *sql.WindowDefinition) sql.WindowAdaptableExpression

WithWindow implements sql.WindowAggregation

type FirstValue 

type FirstValue struct {
	expression.UnaryExpression
	// contains filtered or unexported fields
}

func (*FirstValue) Children 

func (f *FirstValue) Children() []sql.Expression

Children implements sql.Expression

func (*FirstValue) CollationCoercibility 

func (f *FirstValue) CollationCoercibility(ctx *sql.Context) (collation sql.CollationID, coercibility byte)

CollationCoercibility implements the interface sql.CollationCoercible.

func (*FirstValue) DebugString 

func (f *FirstValue) DebugString() string

func (*FirstValue) Description 

func (f *FirstValue) Description() string

Description implements sql.FunctionExpression

func (*FirstValue) Eval 

func (f *FirstValue) Eval(ctx *sql.Context, row sql.Row) (interface{}, error)

Eval implements sql.Expression

func (*FirstValue) FunctionName 

func (f *FirstValue) FunctionName() string

FunctionName implements sql.FunctionExpression

func (*FirstValue) Id 

func (f *FirstValue) Id() sql.ColumnId

Id implements sql.IdExpression

func (*FirstValue) IsNullable 

func (f *FirstValue) IsNullable() bool

IsNullable implements sql.Expression

func (*FirstValue) NewWindowFunction 

func (f *FirstValue) NewWindowFunction() (sql.WindowFunction, error)

func (*FirstValue) Resolved 

func (f *FirstValue) Resolved() bool

IsNullable implements sql.Expression

func (*FirstValue) String 

func (f *FirstValue) String() string

func (*FirstValue) Type 

func (f *FirstValue) Type() sql.Type

Type implements sql.Expression

func (*FirstValue) Window 

func (f *FirstValue) Window() *sql.WindowDefinition

Window implements sql.WindowExpression

func (*FirstValue) WithChildren 

func (f *FirstValue) WithChildren(children ...sql.Expression) (sql.Expression, error)

WithChildren implements sql.Expression

func (*FirstValue) WithId 

func (f *FirstValue) WithId(id sql.ColumnId) sql.IdExpression

WithId implements sql.IdExpression

func (*FirstValue) WithWindow 

func (f *FirstValue) WithWindow(window *sql.WindowDefinition) sql.WindowAdaptableExpression

WithWindow implements sql.WindowAggregation

type Lag 

type Lag struct {
	expression.NaryExpression
	// contains filtered or unexported fields
}

func NewLag 

func NewLag(e ...sql.Expression) (*Lag, error)

NewLag accepts variadic arguments to create a new Lag node: If 1 expression, use default values for [default] and [offset] If 2 expressions, use default value for [default] 3 input expression match to [child], [offset], and [default] arguments The offset is constrained to a non-negative integer expression.Literal. TODO: support user-defined variable offset

func (*Lag) Children 

func (l *Lag) Children() []sql.Expression

Children implements sql.Expression

func (*Lag) CollationCoercibility 

func (l *Lag) CollationCoercibility(ctx *sql.Context) (collation sql.CollationID, coercibility byte)

CollationCoercibility implements the interface sql.CollationCoercible.

func (*Lag) DebugString 

func (l *Lag) DebugString() string

func (*Lag) Description 

func (l *Lag) Description() string

Description implements sql.FunctionExpression

func (*Lag) Eval 

func (l *Lag) Eval(ctx *sql.Context, row sql.Row) (interface{}, error)

Eval implements sql.Expression

func (*Lag) FunctionName 

func (l *Lag) FunctionName() string

FunctionName implements sql.FunctionExpression

func (*Lag) Id 

func (l *Lag) Id() sql.ColumnId

Id implements the Aggregation interface

func (*Lag) IsNullable 

func (l *Lag) IsNullable() bool

IsNullable implements sql.Expression

func (*Lag) NewWindowFunction 

func (l *Lag) NewWindowFunction() (sql.WindowFunction, error)

func (*Lag) Resolved 

func (l *Lag) Resolved() bool

IsNullable implements sql.Expression

func (*Lag) String 

func (l *Lag) String() string

func (*Lag) Type 

func (l *Lag) Type() sql.Type

Type implements sql.Expression

func (*Lag) Window 

func (l *Lag) Window() *sql.WindowDefinition

Window implements sql.WindowExpression

func (*Lag) WithChildren 

func (l *Lag) WithChildren(children ...sql.Expression) (sql.Expression, error)

WithChildren implements sql.Expression

func (*Lag) WithId 

func (l *Lag) WithId(id sql.ColumnId) sql.IdExpression

WithId implements the Aggregation interface

func (*Lag) WithWindow 

func (l *Lag) WithWindow(window *sql.WindowDefinition) sql.WindowAdaptableExpression

WithWindow implements sql.WindowAggregation

type LastValue 

type LastValue struct {
	expression.UnaryExpression
	// contains filtered or unexported fields
}

func (*LastValue) Children 

func (f *LastValue) Children() []sql.Expression

Children implements sql.Expression

func (*LastValue) CollationCoercibility 

func (f *LastValue) CollationCoercibility(ctx *sql.Context) (collation sql.CollationID, coercibility byte)

CollationCoercibility implements the interface sql.CollationCoercible.

func (*LastValue) DebugString 

func (f *LastValue) DebugString() string

func (*LastValue) Description 

func (f *LastValue) Description() string

Description implements sql.FunctionExpression

func (*LastValue) Eval 

func (f *LastValue) Eval(ctx *sql.Context, row sql.Row) (interface{}, error)

Eval implements sql.Expression

func (*LastValue) FunctionName 

func (f *LastValue) FunctionName() string

FunctionName implements sql.FunctionExpression

func (*LastValue) Id 

func (f *LastValue) Id() sql.ColumnId

Id implements sql.IdExpression

func (*LastValue) IsNullable 

func (f *LastValue) IsNullable() bool

IsNullable implements sql.Expression

func (*LastValue) NewWindowFunction 

func (f *LastValue) NewWindowFunction() (sql.WindowFunction, error)

func (*LastValue) Resolved 

func (f *LastValue) Resolved() bool

IsNullable implements sql.Expression

func (*LastValue) String 

func (f *LastValue) String() string

func (*LastValue) Type 

func (f *LastValue) Type() sql.Type

Type implements sql.Expression

func (*LastValue) Window 

func (f *LastValue) Window() *sql.WindowDefinition

Window implements sql.WindowExpression

func (*LastValue) WithChildren 

func (f *LastValue) WithChildren(children ...sql.Expression) (sql.Expression, error)

WithChildren implements sql.Expression

func (*LastValue) WithId 

func (f *LastValue) WithId(id sql.ColumnId) sql.IdExpression

WithId implements sql.IdExpression

func (*LastValue) WithWindow 

func (f *LastValue) WithWindow(window *sql.WindowDefinition) sql.WindowAdaptableExpression

WithWindow implements sql.WindowAggregation

type Lead 

type Lead struct {
	expression.NaryExpression
	// contains filtered or unexported fields
}

func NewLead 

func NewLead(e ...sql.Expression) (*Lead, error)

NewLead accepts variadic arguments to create a new Lead node: If 1 expression, use default values for [default] and [offset] If 2 expressions, use default value for [default] 3 input expression match to [child], [offset], and [default] arguments The offset is constrained to a non-negative integer expression.Literal. TODO: support user-defined variable offset

func (*Lead) Children 

func (l *Lead) Children() []sql.Expression

Children implements sql.Expression

func (*Lead) CollationCoercibility 

func (l *Lead) CollationCoercibility(ctx *sql.Context) (collation sql.CollationID, coercibility byte)

CollationCoercibility implements the interface sql.CollationCoercible.

func (*Lead) DebugString 

func (l *Lead) DebugString() string

func (*Lead) Description 

func (l *Lead) Description() string

Description implements sql.FunctionExpression

func (*Lead) Eval 

func (l *Lead) Eval(ctx *sql.Context, row sql.Row) (interface{}, error)

Eval implements sql.Expression

func (*Lead) FunctionName 

func (l *Lead) FunctionName() string

FunctionName implements sql.FunctionExpression

func (*Lead) Id 

func (l *Lead) Id() sql.ColumnId

Id implements sql.IdExpression

func (*Lead) IsNullable 

func (l *Lead) IsNullable() bool

IsNullable implements sql.Expression

func (*Lead) NewWindowFunction 

func (l *Lead) NewWindowFunction() (sql.WindowFunction, error)

func (*Lead) Resolved 

func (l *Lead) Resolved() bool

IsNullable implements sql.Expression

func (*Lead) String 

func (l *Lead) String() string

func (*Lead) Type 

func (l *Lead) Type() sql.Type

Type implements sql.Expression

func (*Lead) Window 

func (l *Lead) Window() *sql.WindowDefinition

Window implements sql.WindowExpression

func (*Lead) WithChildren 

func (l *Lead) WithChildren(children ...sql.Expression) (sql.Expression, error)

WithChildren implements sql.Expression

func (*Lead) WithId 

func (l *Lead) WithId(id sql.ColumnId) sql.IdExpression

WithId implements sql.IdExpression

func (*Lead) WithWindow 

func (l *Lead) WithWindow(window *sql.WindowDefinition) sql.WindowAdaptableExpression

WithWindow implements sql.WindowAggregation

type PercentRank 

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

func (*PercentRank) Children 

func (p *PercentRank) Children() []sql.Expression

Children implements sql.Expression

func (*PercentRank) CollationCoercibility 

func (*PercentRank) CollationCoercibility(ctx *sql.Context) (collation sql.CollationID, coercibility byte)

CollationCoercibility implements the interface sql.CollationCoercible.

func (*PercentRank) DebugString 

func (p *PercentRank) DebugString() string

func (*PercentRank) Description 

func (p *PercentRank) Description() string

Description implements sql.FunctionExpression

func (*PercentRank) Eval 

func (p *PercentRank) Eval(ctx *sql.Context, row sql.Row) (interface{}, error)

Eval implements sql.Expression

func (*PercentRank) FunctionName 

func (p *PercentRank) FunctionName() string

FunctionName implements sql.FunctionExpression

func (*PercentRank) Id 

func (p *PercentRank) Id() sql.ColumnId

Id implements sql.IdExpression

func (*PercentRank) IsNullable 

func (p *PercentRank) IsNullable() bool

IsNullable implements sql.Expression

func (*PercentRank) NewWindowFunction 

func (p *PercentRank) NewWindowFunction() (sql.WindowFunction, error)

func (*PercentRank) Resolved 

func (p *PercentRank) Resolved() bool

func (*PercentRank) String 

func (p *PercentRank) String() string

func (*PercentRank) Type 

func (p *PercentRank) Type() sql.Type

Type implements sql.Expression

func (*PercentRank) Window 

func (p *PercentRank) Window() *sql.WindowDefinition

Window implements sql.WindowExpression

func (*PercentRank) WithChildren 

func (p *PercentRank) WithChildren(children ...sql.Expression) (sql.Expression, error)

WithChildren implements sql.Expression

func (*PercentRank) WithId 

func (p *PercentRank) WithId(id sql.ColumnId) sql.IdExpression

WithId implements sql.IdExpression

func (*PercentRank) WithWindow 

func (p *PercentRank) WithWindow(window *sql.WindowDefinition) sql.WindowAdaptableExpression

WithWindow implements sql.WindowAggregation

type Rank 

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

func (*Rank) Children 

func (p *Rank) Children() []sql.Expression

Children implements sql.Expression

func (*Rank) CollationCoercibility 

func (*Rank) CollationCoercibility(ctx *sql.Context) (collation sql.CollationID, coercibility byte)

CollationCoercibility implements the interface sql.CollationCoercible.

func (*Rank) DebugString 

func (p *Rank) DebugString() string

func (*Rank) Description 

func (p *Rank) Description() string

Description implements sql.FunctionExpression

func (*Rank) Eval 

func (p *Rank) Eval(ctx *sql.Context, row sql.Row) (interface{}, error)

Eval implements sql.Expression

func (*Rank) FunctionName 

func (p *Rank) FunctionName() string

FunctionName implements sql.FunctionExpression

func (*Rank) Id 

func (p *Rank) Id() sql.ColumnId

Id implements sql.IdExpression

func (*Rank) IsNullable 

func (p *Rank) IsNullable() bool

IsNullable implements sql.Expression

func (*Rank) NewWindowFunction 

func (p *Rank) NewWindowFunction() (sql.WindowFunction, error)

func (*Rank) Resolved 

func (p *Rank) Resolved() bool

func (*Rank) String 

func (p *Rank) String() string

func (*Rank) Type 

func (p *Rank) Type() sql.Type

Type implements sql.Expression

func (*Rank) Window 

func (p *Rank) Window() *sql.WindowDefinition

Window implements sql.WindowExpression

func (*Rank) WithChildren 

func (p *Rank) WithChildren(children ...sql.Expression) (sql.Expression, error)

WithChildren implements sql.Expression

func (*Rank) WithId 

func (p *Rank) WithId(id sql.ColumnId) sql.IdExpression

WithId implements sql.IdExpression

func (*Rank) WithWindow 

func (p *Rank) WithWindow(window *sql.WindowDefinition) sql.WindowAdaptableExpression

WithWindow implements sql.WindowAggregation

type RowNumber 

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

func (*RowNumber) Children 

func (r *RowNumber) Children() []sql.Expression

Children implements sql.Expression

func (*RowNumber) CollationCoercibility 

func (*RowNumber) CollationCoercibility(ctx *sql.Context) (collation sql.CollationID, coercibility byte)

CollationCoercibility implements the interface sql.CollationCoercible.

func (*RowNumber) DebugString 

func (r *RowNumber) DebugString() string

func (*RowNumber) Description 

func (r *RowNumber) Description() string

Description implements sql.FunctionExpression

func (*RowNumber) Eval 

func (r *RowNumber) Eval(ctx *sql.Context, row sql.Row) (interface{}, error)

Eval implements sql.Expression

func (*RowNumber) FunctionName 

func (r *RowNumber) FunctionName() string

FunctionName implements sql.FunctionExpression

func (*RowNumber) Id 

func (r *RowNumber) Id() sql.ColumnId

Id implements sql.IdExpression

func (*RowNumber) IsNullable 

func (r *RowNumber) IsNullable() bool

IsNullable implements sql.Expression

func (*RowNumber) NewWindowFunction 

func (r *RowNumber) NewWindowFunction() (sql.WindowFunction, error)

func (*RowNumber) Resolved 

func (r *RowNumber) Resolved() bool

IsNullable implements sql.Expression

func (*RowNumber) String 

func (r *RowNumber) String() string

func (*RowNumber) Type 

func (r *RowNumber) Type() sql.Type

Type implements sql.Expression

func (*RowNumber) Window 

func (r *RowNumber) Window() *sql.WindowDefinition

Window implements sql.WindowExpression

func (*RowNumber) WithChildren 

func (r *RowNumber) WithChildren(children ...sql.Expression) (sql.Expression, error)

WithChildren implements sql.Expression

func (*RowNumber) WithId 

func (r *RowNumber) WithId(id sql.ColumnId) sql.IdExpression

WithId implements sql.IdExpression

func (*RowNumber) WithWindow 

func (r *RowNumber) WithWindow(window *sql.WindowDefinition) sql.WindowAdaptableExpression

WithWindow implements sql.WindowAggregation

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