• Tom Lane's avatar
    Phase 1 of read-only-plans project: cause executor state nodes to point · 1fd0c59e
    Tom Lane authored
    to plan nodes, not vice-versa.  All executor state nodes now inherit from
    struct PlanState.  Copying of plan trees has been simplified by not
    storing a list of SubPlans in Plan nodes (eliminating duplicate links).
    The executor still needs such a list, but it can build it during
    ExecutorStart since it has to scan the plan tree anyway.
    No initdb forced since no stored-on-disk structures changed, but you
    will need a full recompile because of node-numbering changes.
    1fd0c59e
nodeIndexscan.h 1012 Bytes
/*-------------------------------------------------------------------------
 *
 * nodeIndexscan.h
 *
 *
 *
 * Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
 * Portions Copyright (c) 1994, Regents of the University of California
 *
 * $Id: nodeIndexscan.h,v 1.17 2002/12/05 15:50:38 tgl 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 */