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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 12:37:21 +0200 |
| commit | e3e05addee42c643867557a3065debb085f1d169 (patch) | |
| tree | 7aa59c503fca7c295b4ce42f89eda2a3085319cc /src/backend/parser/parse_merge.c | |
| parent | 86d2b434c9a3520a10db4feae236b74452d3d157 (diff) | |
| download | postgresql-e3e05addee42c643867557a3065debb085f1d169.tar.gz postgresql-e3e05addee42c643867557a3065debb085f1d169.zip | |
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/backend/parser/parse_merge.c')
0 files changed, 0 insertions, 0 deletions