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/*-------------------------------------------------------------------------
*
* nodeGroup.h
* prototypes for nodeGroup.c
*
*
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: nodeGroup.h,v 1.18 2001/01/24 19:43:23 momjian Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef NODEGROUP_H
#define NODEGROUP_H
#include "nodes/plannodes.h"
extern TupleTableSlot *ExecGroup(Group *node);
extern bool ExecInitGroup(Group *node, EState *estate, Plan *parent);
extern int ExecCountSlotsGroup(Group *node);
extern void ExecEndGroup(Group *node);
extern void ExecReScanGroup(Group *node, ExprContext *exprCtxt, Plan *parent);
extern bool execTuplesMatch(HeapTuple tuple1,
HeapTuple tuple2,
TupleDesc tupdesc,
int numCols,
AttrNumber *matchColIdx,
FmgrInfo *eqfunctions,
MemoryContext evalContext);
extern FmgrInfo *execTuplesMatchPrepare(TupleDesc tupdesc,
int numCols,
AttrNumber *matchColIdx);
#endif /* NODEGROUP_H */
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