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Avoid integer overflow when LIMIT + OFFSET >= 2^63.

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This fixes bug #6139 reported by Hitoshi Harada.
This commit is contained in:
Heikki Linnakangas 2011-08-02 10:47:17 +03:00
parent 78e957dd46
commit f00fbad6bd
1 changed files with 1 additions and 1 deletions
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src/backend/executor/nodeLimit.c
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@ -125,7 +125,7 @@ ExecLimit(LimitState *node)
* the state machine state to record having done so.
*/
if (!node->noCount &&
node->position >= node->offset + node->count)
node->position - node->offset >= node->count)
{
node->lstate = LIMIT_WINDOWEND;
return NULL;