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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2006-12-26 19:26:56 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2006-12-26 19:26:56 +0000 |
| commit | 85a373b1f087ca15a7f1a84b5f9541400d02ad00 (patch) | |
| tree | 4f8a7aed02d3e07e3761052c46276af9143fa425 /src/backend/executor/nodeResult.c | |
| parent | b85a4cda83bc7a19031730465d358e415935f05b (diff) | |
| download | postgresql-85a373b1f087ca15a7f1a84b5f9541400d02ad00.tar.gz postgresql-85a373b1f087ca15a7f1a84b5f9541400d02ad00.zip | |
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.
Diffstat (limited to 'src/backend/executor/nodeResult.c')
| -rw-r--r-- | src/backend/executor/nodeResult.c | 4 |
1 files changed, 3 insertions, 1 deletions
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 /* |