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1fd0c59e25
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.
37 lines
1.1 KiB
C
37 lines
1.1 KiB
C
/*-------------------------------------------------------------------------
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*
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* nodeGroup.h
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* prototypes for nodeGroup.c
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*
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*
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* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* $Id: nodeGroup.h,v 1.23 2002/12/05 15:50:37 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef NODEGROUP_H
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#define NODEGROUP_H
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#include "nodes/execnodes.h"
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extern int ExecCountSlotsGroup(Group *node);
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extern GroupState *ExecInitGroup(Group *node, EState *estate);
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extern TupleTableSlot *ExecGroup(GroupState *node);
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extern void ExecEndGroup(GroupState *node);
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extern void ExecReScanGroup(GroupState *node, ExprContext *exprCtxt);
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extern bool execTuplesMatch(HeapTuple tuple1,
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HeapTuple tuple2,
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TupleDesc tupdesc,
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int numCols,
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AttrNumber *matchColIdx,
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FmgrInfo *eqfunctions,
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MemoryContext evalContext);
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extern FmgrInfo *execTuplesMatchPrepare(TupleDesc tupdesc,
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int numCols,
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AttrNumber *matchColIdx);
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#endif /* NODEGROUP_H */
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