Re: Two issues leading to discrepancies in FSM data on the standby server
Alexander Korotkov <aekorotkov@gmail.com>
From: Alexander Korotkov <aekorotkov@gmail.com>
To: Melanie Plageman <melanieplageman@gmail.com>
Cc: Alexey Makhmutov <a.makhmutov@postgrespro.ru>,
Andrey Borodin <x4mmm@yandex-team.ru>, pgsql-hackers@postgresql.org
Date: 2026-05-02T16:51:52Z
Lists: pgsql-hackers
On Fri, May 1, 2026 at 12:57 AM Melanie Plageman <melanieplageman@gmail.com> wrote: > On Wed, Apr 22, 2026 at 10:15 AM Melanie Plageman > <melanieplageman@gmail.com> wrote: > > > > On Wed, Apr 22, 2026 at 8:32 AM Alexander Korotkov <aekorotkov@gmail.com> wrote: > > > > > > It is a bug that is causing overly optimistic FSM > > > > numbers, but it's not a correctness issue like wrong results/data > > > > corruption etc. So, I think you could make an argument either way > > > > about fixing it. > > > > > > It has user-visible effect of increased insertion time after replica > > > promotion. I think this is quite a reason to backpatch. > > > > Right, since it's not invasive, I'm fine with backpatching. > > Alexander, are you planning on committing this? Melanie, thank you for reminder. Yes, I'm planning to commit (with backpatching) this in a couple of days. ------ Regards, Alexander Korotkov Supabase