diff options
| author | Alexander Korotkov <akorotkov@postgresql.org> | 2022-02-14 03:26:55 +0300 |
|---|---|---|
| committer | Alexander Korotkov <akorotkov@postgresql.org> | 2022-02-14 04:04:28 +0300 |
| commit | 2e9033a548041151e32f070cecc9dee154e8fb98 (patch) | |
| tree | 9850e9a22a764c285c60ee42563a2d6f6e0a350d /src/backend/executor/nodeIndexscan.c | |
| parent | b6f869beeab06981c223ff35088fdb8a5422584d (diff) | |
Fix memory leak in IndexScan node with reordering
Fix ExecReScanIndexScan() to free the referenced tuples while emptying the
priority queue. Backpatch to all supported versions.
Discussion: https://postgr.es/m/CAHqSB9gECMENBQmpbv5rvmT3HTaORmMK3Ukg73DsX5H7EJV7jw%40mail.gmail.com
Author: Aliaksandr Kalenik
Reviewed-by: Tom Lane, Alexander Korotkov
Backpatch-through: 10
Diffstat (limited to 'src/backend/executor/nodeIndexscan.c')
| -rw-r--r-- | src/backend/executor/nodeIndexscan.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/backend/executor/nodeIndexscan.c b/src/backend/executor/nodeIndexscan.c index 9ccdab6d071..2458cf3a291 100644 --- a/src/backend/executor/nodeIndexscan.c +++ b/src/backend/executor/nodeIndexscan.c @@ -600,8 +600,12 @@ ExecReScanIndexScan(IndexScanState *node) /* flush the reorder queue */ if (node->iss_ReorderQueue) { + HeapTuple tuple; while (!pairingheap_is_empty(node->iss_ReorderQueue)) - reorderqueue_pop(node); + { + tuple = reorderqueue_pop(node); + heap_freetuple(tuple); + } } /* reset index scan */ |