Horton

Re: POC: make mxidoff 64 bits

wenhui qiu <qiuwenhuifx@gmail.com>

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From: wenhui qiu <qiuwenhuifx@gmail.com>
To: Heikki Linnakangas <hlinnaka@iki.fi>
Cc: Maxim Orlov <orlovmg@gmail.com>, Alexander Korotkov <aekorotkov@gmail.com>, Postgres hackers <pgsql-hackers@lists.postgresql.org>
Date: 2025-04-14T09:04:40Z
Lists: pgsql-hackers

Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →

  1. Fix partial read handling in pg_upgrade's multixact conversion

  2. Increase timeout in multixid_conversion upgrade test

  3. Improve sanity checks on multixid members length

  4. Clarify comment on multixid offset wraparound check

  5. Never store 0 as the nextMXact

  6. Add runtime checks for bogus multixact offsets

  7. Widen MultiXactOffset to 64 bits

  8. Move pg_multixact SLRU page format definitions to a separate header

  9. Convert confusing macros in multixact.c to static inline functions

  10. Index SLRUs by 64-bit integers rather than by 32-bit integers

  11. Cope with possible failure of the oldest MultiXact to exist.

HI Heikki
    Pls Kindly help to create task in https://commitfest.postgresql.org/53/
,I can not found this path in
Commitfest 2025-07


Thanks

On Wed, Apr 2, 2025 at 2:26 AM Heikki Linnakangas <hlinnaka@iki.fi> wrote:

> On 01/04/2025 21:25, Heikki Linnakangas wrote:
> > On 07/03/2025 13:30, Maxim Orlov wrote:
> >> Here is a rebase, v14.
> >
> > Thanks! I did some manual testing of this. I created a little helper
> > function to consume multixids, to test the autovacuum behavior, and
> > found one issue:
>
> Forgot to attach the test function I used, here it is.
>
> --
> Heikki Linnakangas
> Neon (https://neon.tech)