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Subject: Re: BUG #19490: Streaming standby on 16.14 stops applying WAL on
 MultiXactOffsetSLRU when primary is 16.8
From: Andrey Borodin <x4mmm@yandex-team.ru>
In-Reply-To: <4016ab8b-84c0-4606-8a77-67ad5b157bfc@iki.fi>
Date: Wed, 27 May 2026 17:08:27 +0500
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>,
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To: Heikki Linnakangas <hlinnaka@iki.fi>
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> On 27 May 2026, at 14:06, Heikki Linnakangas <hlinnaka@iki.fi> wrote:
>=20
> I have applied this to v14 - v16.

Thanks!

I can confirm that all 5 branches are now passing new buildfarm test =
module.
While 14-16 were failing it this morning.

I'll try to get this test module to usable state and enable on my =
animal.
Interestingly, "make installcheck" regress trace was not triggering WAL =
incompatibility,
so I this module is not "make installcheck" + "special multixact =
workload" [0].
I'm not sure it is useful for finding other similar bugs...


Best regards, Andrey Borodin.

[0] =
https://github.com/PGBuildFarm/client-code/pull/42/changes#diff-588541281f=
9511e15c02bc6718535cf7cd28e650cf2b8a3af7acb36c47526916R227=