Re: IPC/MultixactCreation on the Standby server

From: Álvaro Herrera <alvherre(at)kurilemu(dot)de>
To: "Heikki Linnakangas" <hlinnaka(at)iki(dot)fi>, pgsql-hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>, "Andrey Borodin" <x4mmm(at)yandex-team(dot)ru>
Cc: "Ivan Bykov" <i(dot)bykov(at)modernsys(dot)ru>, "Kirill Reshke" <reshkekirill(at)gmail(dot)com>
Subject: Re: IPC/MultixactCreation on the Standby server
Date: 2025-11-26 21:15:19
Message-ID: efccde57-50b2-4538-b80c-3906b42925ba@app.fastmail.com
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On 2025-11-26, Heikki Linnakangas wrote:

> What happens if you replay the WAL generated with old binary, without
> this patch, with new binary? It's not good:

Maybe this needs a new record identifier, separating old wal from that generated by the new code?

--
Álvaro Herrera

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