Feedback-ID: ia2694551:Fastmail
Date: Thu, 11 Dec 2025 21:05:24 +0100
From: Alvaro Herrera <alvherre@alvh.no-ip.org>
To: Heikki Linnakangas <hlinnaka@iki.fi>
Cc: Ashutosh Bapat <ashutosh.bapat.oss@gmail.com>,
	Maxim Orlov <orlovmg@gmail.com>, Alexander Korotkov <aekorotkov@gmail.com>,
	wenhui qiu <qiuwenhuifx@gmail.com>,
 Postgres hackers <pgsql-hackers@lists.postgresql.org>
Subject: Re: POC: make mxidoff 64 bits
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On 2025-Dec-11, Heikki Linnakangas wrote:

> That's a great question and I've been wondering about it myself. It goes all
> the way to the initial commit where multixacts were introduced, and I don't
> see any particular reason for it even back then. Even in the very first
> version of multixact.c, IMO it would've been simpler to have the writer
> handle the wraparound.
> 
> Álvaro, would you happen to remember?

Sorry, I have no recollections of the reason why it was done this way.

-- 
Álvaro Herrera               48°01'N 7°57'E  —  https://www.EnterpriseDB.com/
Voy a acabar con todos los humanos / con los humanos yo acabaré
voy a acabar con todos (bis) / con todos los humanos acabaré ¡acabaré! (Bender)