diff options
| author | Tom Lane <tgl@sss.pgh.pa.us> | 2006-12-26 19:27:26 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2006-12-26 19:27:26 +0000 |
| commit | d3db2bd80c8ee9a0cb2679ba341892e620a2676e (patch) | |
| tree | 4699a740828ca21566db9717a70c03068376da46 /src/backend/executor/nodeFunctionscan.c | |
| parent | 923ec1a19f5839dfb7628ad20521aa38f25b4e8f (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 cf8d74a06f2..a5323af6922 100644 --- a/src/backend/executor/nodeFunctionscan.c +++ b/src/backend/executor/nodeFunctionscan.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $Header: /cvsroot/pgsql/src/backend/executor/nodeFunctionscan.c,v 1.12 2002/09/04 20:31:18 momjian Exp $ + * $Header: /cvsroot/pgsql/src/backend/executor/nodeFunctionscan.c,v 1.12.2.1 2006/12/26 19:27:26 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -361,6 +361,7 @@ ExecFunctionReScan(FunctionScan *node, ExprContext *exprCtxt, Plan *parent) scanstate = (FunctionScanState *) node->scan.scanstate; ExecClearTuple(scanstate->csstate.cstate.cs_ResultTupleSlot); + scanstate->csstate.cstate.cs_TupFromTlist = false; /* * If we haven't materialized yet, just return. |