postgresql/src/include/executor/nodeAppend.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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/*-------------------------------------------------------------------------
*
* nodeAppend.h
*
*
*
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: nodeAppend.h,v 1.18 2002/12/05 15:50:37 tgl Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef NODEAPPEND_H
#define NODEAPPEND_H
#include "nodes/execnodes.h"
extern int ExecCountSlotsAppend(Append *node);
extern AppendState *ExecInitAppend(Append *node, EState *estate);
extern TupleTableSlot *ExecProcAppend(AppendState *node);
extern void ExecEndAppend(AppendState *node);
extern void ExecReScanAppend(AppendState *node, ExprContext *exprCtxt);
#endif /* NODEAPPEND_H */