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| author | Alexander Korotkov <akorotkov@postgresql.org> | 2022-02-14 03:26:55 +0300 |
|---|---|---|
| committer | Alexander Korotkov <akorotkov@postgresql.org> | 2022-02-14 03:32:34 +0300 |
| commit | ac2303aa0386d2fa26cc3e237076b49827b39d6a (patch) | |
| tree | bd83f8bf7ce8557282f8bfd38ac0fa3db82f1ea1 /src/backend/executor | |
| parent | 51ee561f5671cd92f6dcaacf043985c497a82fc1 (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')
| -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 d0a96a38e01..b32c25896df 100644 --- a/src/backend/executor/nodeIndexscan.c +++ b/src/backend/executor/nodeIndexscan.c @@ -574,8 +574,12 @@ 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 */ |