postgresql/src/include/executor/nodeNestloop.h
Tom Lane 1fd0c59e25 Phase 1 of read-only-plans project: cause executor state nodes to point
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.
2002-12-05 15:50:39 +00:00

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/*-------------------------------------------------------------------------
*
* nodeNestloop.h
*
*
*
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: nodeNestloop.h,v 1.19 2002/12/05 15:50:38 tgl Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef NODENESTLOOP_H
#define NODENESTLOOP_H
#include "nodes/execnodes.h"
extern int ExecCountSlotsNestLoop(NestLoop *node);
extern NestLoopState *ExecInitNestLoop(NestLoop *node, EState *estate);
extern TupleTableSlot *ExecNestLoop(NestLoopState *node);
extern void ExecEndNestLoop(NestLoopState *node);
extern void ExecReScanNestLoop(NestLoopState *node, ExprContext *exprCtxt);
#endif /* NODENESTLOOP_H */