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SPI_exec shouldn't return SPI_OK_SELECT if it hasn't actually returned

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a tuple table.  Fixes core dump in pltcl (and probably other PLs) when
executing a query rewritten by a rule.  Per bug report from Wolfgang Walter.
This commit is contained in:
Tom Lane 2003-01-29 15:24:46 +00:00
parent 6976205b4b
commit 26f56131ae
1 changed files with 14 additions and 1 deletions
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15
src/backend/executor/spi.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/executor/spi.c,v 1.84 2003/01/21 22:06:12 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/executor/spi.c,v 1.85 2003/01/29 15:24:46 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -124,6 +124,14 @@ SPI_finish(void)
MemoryContextDelete(_SPI_current->execCxt);
MemoryContextDelete(_SPI_current->procCxt);
/*
* Reset result variables, especially SPI_tuptable which is probably
* pointing at a just-deleted tuptable
*/
SPI_processed = 0;
SPI_lastoid = InvalidOid;
SPI_tuptable = NULL;
/*
* After _SPI_begin_call _SPI_connected == _SPI_curid. Now we are
* closing connection to SPI and returning to upper Executor and so
@ -1314,6 +1322,11 @@ _SPI_pquery(QueryDesc *queryDesc, bool runit, int tcount)
SPI_lastoid = save_lastoid;
SPI_tuptable = _SPI_current->tuptable;
}
else if (res == SPI_OK_SELECT)
{
/* Don't return SPI_OK_SELECT if we discarded the result */
res = SPI_OK_UTILITY;
}
ExecutorEnd(queryDesc);