From 85a373b1f087ca15a7f1a84b5f9541400d02ad00 Mon Sep 17 00:00:00 2001 From: Tom Lane Date: Tue, 26 Dec 2006 19:26:56 +0000 Subject: Repair bug #2839: the various ExecReScan functions need to reset ps_TupFromTlist in plan nodes that make use of it. This was being done correctly in join nodes and Result nodes but not in any relation-scan nodes. Bug would lead to bogus results if a set-returning function appeared in the targetlist of a subquery that could be rescanned after partial execution, for example a subquery within EXISTS(). Bug has been around forever :-( ... surprising it wasn't reported before. --- src/backend/executor/nodeResult.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'src/backend/executor/nodeResult.c') diff --git a/src/backend/executor/nodeResult.c b/src/backend/executor/nodeResult.c index e58d6ece506..2deef985f4d 100644 --- a/src/backend/executor/nodeResult.c +++ b/src/backend/executor/nodeResult.c @@ -38,7 +38,7 @@ * Portions Copyright (c) 1994, Regents of the University of California * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/executor/nodeResult.c,v 1.34 2006/03/05 15:58:26 momjian Exp $ + * $PostgreSQL: pgsql/src/backend/executor/nodeResult.c,v 1.34.2.1 2006/12/26 19:26:56 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -200,6 +200,8 @@ ExecInitResult(Result *node, EState *estate, int eflags) */ ExecAssignExprContext(estate, &resstate->ps); + resstate->ps.ps_TupFromTlist = false; + #define RESULT_NSLOTS 1 /* -- cgit v1.2.3