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| author | Alexander Korotkov <akorotkov@postgresql.org> | 2024-02-08 12:45:26 +0200 |
|---|---|---|
| committer | Alexander Korotkov <akorotkov@postgresql.org> | 2024-02-09 12:39:54 +0200 |
| commit | 4efaf4b09e8f9a9c8b04a6c82454c248de042119 (patch) | |
| tree | b4963d6095afdcfd009a8601f5490812c97e8685 /src/interfaces/libpq/fe-misc.c | |
| parent | b3b2bf3b9cc1f31170d3b4e21cb6ac0cf24bf90a (diff) | |
Fix wrong logic in TransactionIdInRecentPast()
The TransactionIdInRecentPast() should return false for all the transactions
older than TransamVariables->oldestClogXid. However, the function contains
a bug in comparison FullTransactionId to TransactionID allowing full
transactions between nextXid - 2^32 and oldestClogXid - 2^31.
This commit fixes TransactionIdInRecentPast() by turning the oldestClogXid into
FullTransactionId first, then performing the comparison.
Backpatch to all supported versions.
Reported-by: Egor Chindyaskin
Bug: 18212
Discussion: https://postgr.es/m/18212-547307f8adf57262%40postgresql.org
Author: Karina Litskevich
Reviewed-by: Kyotaro Horiguchi
Backpatch-through: 12
Diffstat (limited to 'src/interfaces/libpq/fe-misc.c')
0 files changed, 0 insertions, 0 deletions