Обсуждение: pgsql: Don't lose partitioned table reltuples=0 after relhassubclass=f.
Don't lose partitioned table reltuples=0 after relhassubclass=f. ANALYZE sets relhassubclass=f when a partitioned table no longer has partitions. An ANALYZE doing that proceeded to apply the inplace update of pg_class.reltuples to the old pg_class tuple instead of the new tuple, losing that reltuples=0 change if the ANALYZE committed. Non-partitioning inheritance trees were unaffected. Back-patch to v14, where commit 375aed36ad83f0e021e9bdd3a0034c0c992c66dc introduced maintenance of partitioned table pg_class.reltuples. Reported by Alexander Lakhin. Discussion: https://postgr.es/m/a295b499-dcab-6a99-c06e-01cf60593344@gmail.com Branch ------ REL_14_STABLE Details ------- https://git.postgresql.org/pg/commitdiff/2b415e95a8a7ccb4fe9276e2ca453f4ae69466c1 Modified Files -------------- src/backend/commands/analyze.c | 7 ++++- src/test/regress/expected/sanity_check.out | 2 ++ src/test/regress/expected/vacuum.out | 47 ++++++++++++++++++++++++++++++ src/test/regress/sql/vacuum.sql | 29 ++++++++++++++++++ 4 files changed, 84 insertions(+), 1 deletion(-)