Fix handling of pgstat counters for TRUNCATE in a prepared transaction. pgstat_twophase_postcommit is supposed to duplicate the math in AtEOXact_PgStat, but it had missed out the bit about clearing t_delta_live_tuples/t_delta_dead_tuples for a TRUNCATE.
It's harder than you might think to replicate the issue here, because those counters would only be nonzero when a previous transaction in the same backend had added/deleted tuples in the truncated table, and those counts hadn't been sent to the stats collector yet. Evident oversight in commit d42358efb. I've not added a regression test for this; we tried to add one in d42358efb, and had to revert it because it was too timing-sensitive for the buildfarm. Back-patch to 9.5 where d42358efb came in. Stas Kelvich Discussion: <eb57bf68-c06d-4737-bddc-4ba778f4e...@postgrespro.ru> Branch ------ REL9_6_STABLE Details ------- http://git.postgresql.org/pg/commitdiff/03f2bf70a3e6fb57f29e41a86cf8f9a14b082616 Modified Files -------------- src/backend/postmaster/pgstat.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) -- Sent via pgsql-committers mailing list (pgsql-committers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-committers
