greenplumn tupleremap 源码
greenplumn tupleremap 代码
文件路径：/src/include/cdb/tupleremap.h
/*-------------------------------------------------------------------------
*
* tupleremap.h
*
* Portions Copyright (c) 1996-2016, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* src/include/cdb/tupleremap.h
*
*-------------------------------------------------------------------------
*/
#ifndef TUPLEREMAP_H
#define TUPLEREMAP_H
#include "tcop/dest.h"
/* Opaque struct, only known inside tupleremap.c. */
typedef struct TupleRemapper TupleRemapper;
extern TupleRemapper *CreateTupleRemapper(void);
extern void DestroyTupleRemapper(TupleRemapper *remapper);
extern MinimalTuple TRCheckAndRemap(TupleRemapper *remapper, TupleDesc tupledesc, MinimalTuple tuple);
extern void TRHandleTypeLists(TupleRemapper *remapper, List *typelist);
extern Datum TRRemapDatum(TupleRemapper *remapper, Oid typeid, Datum value);
#endif /* TUPLEREMAP_H */
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