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authorNoah Misch <noah@leadboat.com>2024-06-27 19:21:05 -0700
committerNoah Misch <noah@leadboat.com>2024-06-27 19:21:12 -0700
commitb899cde0b86acfeb6310489ab6c478059075a8f4 (patch)
tree098d9388b3dfff560dd75dc3c5c8c9b1cee56596 /src/backend/utils/adt/numeric.c
parent1a6d65b64e8495280862f5757062eb844d134488 (diff)
downloadpostgresql-b899cde0b86acfeb6310489ab6c478059075a8f4.tar.gz
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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
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