nodeindexscan.h

来自「PostgreSQL7.4.6 for Linux」· C头文件 代码 · 共 30 行

/*-------------------------------------------------------------------------
 *
 * nodeIndexscan.h
 *
 *
 *
 * Portions Copyright (c) 1996-2003, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
 * $Id: nodeIndexscan.h,v 1.18 2003/08/04 02:40:13 momjian Exp $
 *
 *-------------------------------------------------------------------------
 */
#ifndef NODEINDEXSCAN_H
#define NODEINDEXSCAN_H

#include "nodes/execnodes.h"

extern int	ExecCountSlotsIndexScan(IndexScan *node);
extern IndexScanState *ExecInitIndexScan(IndexScan *node, EState *estate);
extern TupleTableSlot *ExecIndexScan(IndexScanState *node);
extern void ExecEndIndexScan(IndexScanState *node);
extern void ExecIndexMarkPos(IndexScanState *node);
extern void ExecIndexRestrPos(IndexScanState *node);
extern void ExecIndexReScan(IndexScanState *node, ExprContext *exprCtxt);

extern void ExecUpdateIndexScanKeys(IndexScanState *node, ExprContext *econtext);

#endif   /* NODEINDEXSCAN_H */