| From: | Heikki Linnakangas <hlinnaka(at)iki(dot)fi> |
|---|---|
| To: | Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org> |
| Cc: | Ashutosh Bapat <ashutosh(dot)bapat(dot)oss(at)gmail(dot)com>, Maxim Orlov <orlovmg(at)gmail(dot)com>, Alexander Korotkov <aekorotkov(at)gmail(dot)com>, wenhui qiu <qiuwenhuifx(at)gmail(dot)com>, Postgres hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: POC: make mxidoff 64 bits |
| Date: | 2025-12-12 08:51:25 |
| Message-ID: | 2d9282d3-7f24-4e1c-af5f-cd33316dead7@iki.fi |
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| Lists: | pgsql-hackers |
On 11/12/2025 22:05, Alvaro Herrera wrote:
> 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.
Ok, I have pushed this. Thanks!
- Heikki
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