Horton

Re: BUG #19490: Streaming standby on 16.14 stops applying WAL on MultiXactOffsetSLRU when primary is 16.8

Andrey Borodin <x4mmm@yandex-team.ru>

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From: Andrey Borodin <x4mmm@yandex-team.ru>
To: Heikki Linnakangas <hlinnaka@iki.fi>
Cc: Nazneen Jafri <jafrinazneen@gmail.com>, Michael Paquier <michael@paquier.xyz>, Ayush Tiwari <ayushtiwari.slg01@gmail.com>, Radim Marek <radim@boringsql.com>, Marko Tiikkaja <marko@joh.to>, PostgreSQL mailing lists <pgsql-bugs@lists.postgresql.org>
Date: 2026-05-29T18:06:46Z
Lists: pgsql-hackers 

> On 27 May 2026, at 17:08, Andrey Borodin <x4mmm@yandex-team.ru> wrote:
> 
> I'll try to get this test module to usable state and enable on my animal.

"hippocampus" now checks backward WAL compatibility for every commit into back
branches.

WAL trace for verification is installcheck with PG_TEST_EXTRA=replay_xversion
and special multixact workload that was tested to catch bug in this thread.


Best regards, Andrey Borodin.