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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.
28 lines
799 B
C
28 lines
799 B
C
/*-------------------------------------------------------------------------
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*
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* nodeAgg.h
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*
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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: nodeAgg.h,v 1.18 2002/12/05 15:50:36 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef NODEAGG_H
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#define NODEAGG_H
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#include "fmgr.h"
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#include "nodes/execnodes.h"
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extern int ExecCountSlotsAgg(Agg *node);
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extern AggState *ExecInitAgg(Agg *node, EState *estate);
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extern TupleTableSlot *ExecAgg(AggState *node);
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extern void ExecEndAgg(AggState *node);
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extern void ExecReScanAgg(AggState *node, ExprContext *exprCtxt);
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extern Datum aggregate_dummy(PG_FUNCTION_ARGS);
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#endif /* NODEAGG_H */
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