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| author | Noah Misch <noah@leadboat.com> | 2024-06-27 19:21:05 -0700 |
|---|---|---|
| committer | Noah Misch <noah@leadboat.com> | 2024-06-27 19:21:11 -0700 |
| commit | 0f2835ea6fc140869b062f61c62a87acf3295153 (patch) | |
| tree | 6f9454397309bced0247b6c0a18ada8a397c5d88 /src/include/access/heapam_xlog.h | |
| parent | a338e41374e4cf7efded6839ac58a60916b31ba7 (diff) | |
AccessExclusiveLock new relations just after assigning the OID.
This has no user-visible, important consequences, since other sessions'
catalog scans can't find the relation until we commit. However, this
unblocks introducing a rule about locks required to heap_update() a
pg_class row. CREATE TABLE has been acquiring this lock eventually, but
it can heap_update() pg_class.relchecks earlier. create_toast_table()
has been acquiring only ShareLock. Back-patch to v12 (all supported
versions), the plan for the commit relying on the new rule.
Reviewed (in an earlier version) by Robert Haas.
Discussion: https://postgr.es/m/20240611024525.9f.nmisch@google.com
Diffstat (limited to 'src/include/access/heapam_xlog.h')
0 files changed, 0 insertions, 0 deletions