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authorHeikki Linnakangas <heikki.linnakangas@iki.fi>2011-08-02 10:47:17 +0300
committerHeikki Linnakangas <heikki.linnakangas@iki.fi>2011-08-02 11:30:38 +0300
commitf00fbad6bd43141faae05cd13a518fd28ae94673 (patch)
tree14dc09ef8c42214ea2312d23350504c5044327e0 /src/backend/executor
parent78e957dd46ce639559ff433a800fae47eb755cce (diff)
Avoid integer overflow when LIMIT + OFFSET >= 2^63.
This fixes bug #6139 reported by Hitoshi Harada.
Diffstat (limited to 'src/backend/executor')
-rw-r--r--src/backend/executor/nodeLimit.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/backend/executor/nodeLimit.c b/src/backend/executor/nodeLimit.c
index 48fb32d3843..c1363b4ecf8 100644
--- a/src/backend/executor/nodeLimit.c
+++ b/src/backend/executor/nodeLimit.c
@@ -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;