Re: Add 64-bit XIDs into PostgreSQL 15

Andrey Borodin <x4mmm@yandex-team.ru>

From: Andrey Borodin <x4mmm@yandex-team.ru>
To: Maxim Orlov <orlovmg@gmail.com>
Cc: Evgeny Voropaev <evgeny.voropaev@tantorlabs.com>, y.sokolov@postgrespro.ru, PostgreSQL Hackers <pgsql-hackers@postgresql.org>
Date: 2025-07-04T08:31:53Z
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. Add SLRU tests for 64-bit page case

  2. Make use FullTransactionId in 2PC filenames

  3. Use larger segment file names for pg_notify

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


> On 2 Jul 2025, at 18:38, Maxim Orlov <orlovmg@gmail.com> wrote:
> 
> If you 
> know of any real problems, please tell me

If I understood correctly, pages can differ on primary and standby. That might be problematic for WAL debug tests.


Best regards, Andrey Borodin.