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Throw an error for negative LIMIT or OFFSET values, instead of silently 

treating them as zero.  Simon Riggs
This commit is contained in:
Tom Lane 2008-03-10 03:37:59 +00:00
parent 2abf130a4e
commit bfce56eea4
1 changed files with 7 additions and 3 deletions
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10
src/backend/executor/nodeLimit.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/executor/nodeLimit.c,v 1.33 2008/01/01 19:45:49 momjian Exp $
* $PostgreSQL: pgsql/src/backend/executor/nodeLimit.c,v 1.34 2008/03/10 03:37:59 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -246,7 +246,9 @@ recompute_limits(LimitState *node)
{
node->offset = DatumGetInt64(val);
if (node->offset < 0)
node->offset = 0;
ereport(ERROR,
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
errmsg("OFFSET must not be negative")));
}
}
else
@ -271,7 +273,9 @@ recompute_limits(LimitState *node)
{
node->count = DatumGetInt64(val);
if (node->count < 0)
node->count = 0;
ereport(ERROR,
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
errmsg("LIMIT must not be negative")));
node->noCount = false;
}
}