NYT::TJobOperationPreparer::TInputGroup Class Reference

Group of input tables that allows to specify properties on all of them at once. More...

#include <operation.h>

Public Member Functions
	TInputGroup (TJobOperationPreparer &preparer, TVector< int > indices)
template<typename TRow>
TInputGroup &	Description ()
	Specify the type of input rows.
TInputGroup &	ColumnRenaming (const THashMap< TString, TString > &renaming)
	Specify renaming of input columns.
TInputGroup &	ColumnFilter (const TVector< TString > &columns)
	Specify what input columns to send to job.
TJobOperationPreparer &	EndInputGroup ()
	Finish describing the input group.

Detailed Description

Group of input tables that allows to specify properties on all of them at once.

The instances are created with NYT::TJobOperationPreparer::BeginInputGroup, not directly.

Member Function Documentation

ColumnFilter()

TInputGroup & NYT::TJobOperationPreparer::TInputGroup::ColumnFilter

(

const TVector< TString > &

columns

)

Specify what input columns to send to job.

Note

Filter is applied before renaming, so it must specify original column names.

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The documentation for this class was generated from the following file:

• yt/cpp/mapreduce/interface/operation.h