diff options
| 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/nodeFunctionscan.c | |
| parent | b85a4cda83bc7a19031730465d358e415935f05b (diff) | |
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/nodeFunctionscan.c')
| -rw-r--r-- | src/backend/executor/nodeFunctionscan.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/backend/executor/nodeFunctionscan.c b/src/backend/executor/nodeFunctionscan.c index 90ab0188743..3ab193cb14a 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 1.40 2006/06/27 02:51:39 tgl Exp $ + * $PostgreSQL: pgsql/src/backend/executor/nodeFunctionscan.c,v 1.40.2.1 2006/12/26 19:26:56 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -317,6 +317,7 @@ 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. |