From cbca48aa240190f3eacfcddaee09b5f16ebf46bf Mon Sep 17 00:00:00 2001 From: Tom Lane Date: Tue, 26 Dec 2006 19:27:10 +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/nodeFunctionscan.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'src/backend/executor/nodeFunctionscan.c') diff --git a/src/backend/executor/nodeFunctionscan.c b/src/backend/executor/nodeFunctionscan.c index 4cf77dac930..4f95692fe0d 100644 --- a/src/backend/executor/nodeFunctionscan.c +++ b/src/backend/executor/nodeFunctionscan.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/executor/nodeFunctionscan.c,v 1.29 2004/12/31 21:59:45 pgsql Exp $ + * $PostgreSQL: pgsql/src/backend/executor/nodeFunctionscan.c,v 1.29.4.1 2006/12/26 19:27:10 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -326,6 +326,7 @@ void ExecFunctionReScan(FunctionScanState *node, ExprContext *exprCtxt) { ExecClearTuple(node->ss.ps.ps_ResultTupleSlot); + node->ss.ps.ps_TupFromTlist = false; /* * If we haven't materialized yet, just return. -- cgit v1.2.3