nodeagg.h

来自「PostgreSQL7.4.6 for Linux」· C头文件 代码 · 共 29 行

/*-------------------------------------------------------------------------
 *
 * nodeAgg.h
 *	  prototypes for nodeAgg.c
 *
 *
 * Portions Copyright (c) 1996-2003, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
 * $Id: nodeAgg.h,v 1.20 2003/08/04 02:40:13 momjian Exp $
 *
 *-------------------------------------------------------------------------
 */
#ifndef NODEAGG_H
#define NODEAGG_H

#include "fmgr.h"
#include "nodes/execnodes.h"

extern int	ExecCountSlotsAgg(Agg *node);
extern AggState *ExecInitAgg(Agg *node, EState *estate);
extern TupleTableSlot *ExecAgg(AggState *node);
extern void ExecEndAgg(AggState *node);
extern void ExecReScanAgg(AggState *node, ExprContext *exprCtxt);

extern Datum aggregate_dummy(PG_FUNCTION_ARGS);

#endif   /* NODEAGG_H */