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Restructure representation of aggregate functions so that they have pg_proc

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entries, per pghackers discussion.  This fixes aggregates to live in
namespaces, and also simplifies/speeds up lookup in parse_func.c.
Also, add a 'proimplicit' flag to pg_proc that controls whether a type
coercion function may be invoked implicitly, or only explicitly.  The
current settings of these flags are more permissive than I would like,
but we will need to debate and refine the behavior; for now, I avoided
breaking regression tests as much as I could.
This commit is contained in:
Tom Lane
2002-04-11 20:00:18 +00:00
parent 3f6299df6c
commit 902a6a0a4b
63 changed files with 2530 additions and 2440 deletions
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5
src/include/executor/nodeAgg.h
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@@ -7,13 +7,14 @@
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: nodeAgg.h,v 1.15 2001/11/05 17:46:33 momjian Exp $
* $Id: nodeAgg.h,v 1.16 2002/04/11 20:00:14 tgl Exp $
*
*-------------------------------------------------------------------------
*/
#ifndef NODEAGG_H
#define NODEAGG_H
#include "fmgr.h"
#include "nodes/plannodes.h"
extern TupleTableSlot *ExecAgg(Agg *node);
@@ -22,4 +23,6 @@ extern int ExecCountSlotsAgg(Agg *node);
extern void ExecEndAgg(Agg *node);
extern void ExecReScanAgg(Agg *node, ExprContext *exprCtxt, Plan *parent);
extern Datum aggregate_dummy(PG_FUNCTION_ARGS);
#endif /* NODEAGG_H */