experimental

package
v0.195.1 Latest Latest
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 Go to latest Published: Sep 17, 2023 License: MIT Imports: 26 Imported by: 0

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Index

Constants

View Source 
const (
	DiffKind       = "experimental.diff"
	DefaultEpsilon = 1e-6
	DiffColumn     = "_diff"
)
View Source 
const CatchKind = "catch"
View Source 
const ExperimentalGroupKind = "experimental-group"
View Source 
const PreviewKind = "experimental.preview"
View Source 
const SetKind = "setExperimental"
View Source 
const UnpivotKind = "experimental.unpivot"

Variables

This section is empty.

Functions

func Catch 

func Catch() values.Function

func MakeChainFunction 

func MakeChainFunction() values.Function

func NewDiffTransformation 

func NewDiffTransformation(id execute.DatasetID, spec *DiffProcedureSpec, wantID, gotID execute.DatasetID, mem memory.Allocator) (execute.Transformation, execute.Dataset, error)

func NewGroupTransformation 

func NewGroupTransformation(d execute.Dataset, cache execute.TableBuilderCache, spec *GroupProcedureSpec) *groupTransformation

func NewMergeJoinCache 

func NewMergeJoinCache(ctx context.Context, alloc memory.Allocator, fn interpreter.ResolvedFunction, left, right execute.DatasetID) *mergeJoinCache

func NewMergeJoinTransformation 

func NewMergeJoinTransformation(d execute.Dataset, cache *mergeJoinCache) *mergeJoinTransformation

func NewPreviewTransformation 

func NewPreviewTransformation(id execute.DatasetID, spec *PreviewProcedureSpec, mem memory.Allocator) (execute.Transformation, execute.Dataset, error)

func NewSetTransformation 

func NewSetTransformation(
	d execute.Dataset,
	cache execute.TableBuilderCache,
	spec *SetProcedureSpec,
) execute.Transformation

func NewUnpivotTransformation 

func NewUnpivotTransformation(spec *UnpivotProcedureSpec, id execute.DatasetID, alloc memory.Allocator) (execute.Transformation, execute.Dataset, error)

Types

type DiffOpSpec 

type DiffOpSpec struct{}

func (*DiffOpSpec) Kind 

func (s *DiffOpSpec) Kind() flux.OperationKind

type DiffProcedureSpec 

type DiffProcedureSpec struct {
	plan.DefaultCost
}

func (*DiffProcedureSpec) Copy 

func (s *DiffProcedureSpec) Copy() plan.ProcedureSpec

func (*DiffProcedureSpec) Kind 

func (s *DiffProcedureSpec) Kind() plan.ProcedureKind

type GroupOpSpec 

type GroupOpSpec struct {
	Mode    string   `json:"mode"`
	Columns []string `json:"columns"`
}

GroupOpSpec in package experimental defines a special group() function that has just one mode called "extend", which adds additional columns to the group key. This is a workaround until schema introspection is implemented: 

https://github.com/InfluxCommunity/flux/issues/27

Most of this code has simply been copied from stdlib/universe/group.go

func (*GroupOpSpec) Kind 

func (s *GroupOpSpec) Kind() flux.OperationKind

type GroupProcedureSpec 

type GroupProcedureSpec struct {
	plan.DefaultCost
	GroupKeys []string
}

func (*GroupProcedureSpec) Copy 

func (s *GroupProcedureSpec) Copy() plan.ProcedureSpec

func (*GroupProcedureSpec) Kind 

func (s *GroupProcedureSpec) Kind() plan.ProcedureKind

type JoinOpSpec 

type JoinOpSpec struct {
	Fn interpreter.ResolvedFunction
	// contains filtered or unexported fields
}

func (*JoinOpSpec) Kind 

func (s *JoinOpSpec) Kind() flux.OperationKind

type MergeJoinProcedureSpec 

type MergeJoinProcedureSpec struct {
	plan.DefaultCost

	Fn interpreter.ResolvedFunction `json:"fn"`
}

func (*MergeJoinProcedureSpec) Copy 

func (s *MergeJoinProcedureSpec) Copy() plan.ProcedureSpec

func (*MergeJoinProcedureSpec) Kind 

func (s *MergeJoinProcedureSpec) Kind() plan.ProcedureKind

type PreviewOpSpec 

type PreviewOpSpec struct {
	NRows   int64
	NTables int64
}

func (*PreviewOpSpec) Kind 

func (s *PreviewOpSpec) Kind() flux.OperationKind

type PreviewProcedureSpec 

type PreviewProcedureSpec struct {
	plan.DefaultCost
	NRows   int64
	NTables int64
}

func (*PreviewProcedureSpec) Copy 

func (s *PreviewProcedureSpec) Copy() plan.ProcedureSpec

func (*PreviewProcedureSpec) Kind 

func (s *PreviewProcedureSpec) Kind() plan.ProcedureKind

type RowIterator 

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

RowIterator iterates over the rows of several column readers

func NewRowIterator 

func NewRowIterator(columns []flux.ColMeta, readers []flux.ColReader, timeCol int) *RowIterator

type SetOpSpec 

type SetOpSpec struct {
	Object values.Object `json:"object"`
}

func (*SetOpSpec) Kind 

func (s *SetOpSpec) Kind() flux.OperationKind

type SetProcedureSpec 

type SetProcedureSpec struct {
	plan.DefaultCost
	Object values.Object
}

func (*SetProcedureSpec) Copy 

func (s *SetProcedureSpec) Copy() plan.ProcedureSpec

func (*SetProcedureSpec) Kind 

func (s *SetProcedureSpec) Kind() plan.ProcedureKind

type UnpivotOpSpec 

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

func (*UnpivotOpSpec) Kind 

func (s *UnpivotOpSpec) Kind() flux.OperationKind

type UnpivotProcedureSpec 

type UnpivotProcedureSpec struct {
	plan.DefaultCost
	OtherColumns []string
}

func (*UnpivotProcedureSpec) Copy 

func (s *UnpivotProcedureSpec) Copy() plan.ProcedureSpec

func (*UnpivotProcedureSpec) Kind 

func (s *UnpivotProcedureSpec) Kind() plan.ProcedureKind

Source Files

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