codekingpro/portable-devtools

1/*-------------------------------------------------------------------------2 *3 * tupconvert.h4 *	  Tuple conversion support.5 *6 *7 * Portions Copyright (c) 1996-2023, PostgreSQL Global Development Group8 * Portions Copyright (c) 1994, Regents of the University of California9 *10 * src/include/access/tupconvert.h11 *12 *-------------------------------------------------------------------------13 */14#ifndef TUPCONVERT_H15#define TUPCONVERT_H16 17#include "access/attmap.h"18#include "access/htup.h"19#include "access/tupdesc.h"20#include "executor/tuptable.h"21#include "nodes/bitmapset.h"22 23 24typedef struct TupleConversionMap25{26	TupleDesc	indesc;			/* tupdesc for source rowtype */27	TupleDesc	outdesc;		/* tupdesc for result rowtype */28	AttrMap    *attrMap;		/* indexes of input fields, or 0 for null */29	Datum	   *invalues;		/* workspace for deconstructing source */30	bool	   *inisnull;31	Datum	   *outvalues;		/* workspace for constructing result */32	bool	   *outisnull;33} TupleConversionMap;34 35 36extern TupleConversionMap *convert_tuples_by_position(TupleDesc indesc,37													  TupleDesc outdesc,38													  const char *msg);39 40extern TupleConversionMap *convert_tuples_by_name(TupleDesc indesc,41												  TupleDesc outdesc);42extern TupleConversionMap *convert_tuples_by_name_attrmap(TupleDesc indesc,43														  TupleDesc outdesc,44														  AttrMap *attrMap);45 46extern HeapTuple execute_attr_map_tuple(HeapTuple tuple, TupleConversionMap *map);47extern TupleTableSlot *execute_attr_map_slot(AttrMap *attrMap,48											 TupleTableSlot *in_slot,49											 TupleTableSlot *out_slot);50extern Bitmapset *execute_attr_map_cols(AttrMap *attrMap, Bitmapset *in_cols);51 52extern void free_conversion_map(TupleConversionMap *map);53 54#endif							/* TUPCONVERT_H */55