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Re: IPC/MultixactCreation on the Standby server

Heikki Linnakangas <hlinnaka@iki.fi>

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From: Heikki Linnakangas <hlinnaka@iki.fi>
To: Dmitry Yurichev <dsy.075@yandex.ru>, Andrey Borodin <x4mmm@yandex-team.ru>
Cc: Álvaro Herrera <alvherre@kurilemu.de>, pgsql-hackers@lists.postgresql.org, Ivan Bykov <i.bykov@modernsys.ru>, Kirill Reshke <reshkekirill@gmail.com>
Date: 2025-12-03T17:19:53Z
Lists: pgsql-hackers 
On 03/12/2025 16:19, Dmitry Yurichev wrote:
> On 12/2/25 16:48, Heikki Linnakangas wrote:
>> Thanks! Agreed, v14-16 were the same. v17 and v18 might be worth 
>> testing separately, to make sure I didn't e.g. screw up the locking 
>> differences.
> 
> I tested on the REL_18_1 tag (with applying v15-pg18-0001-Set-next- 
> multixid-s-offset-when-creating-a-.patch).
> I didn't notice any deadlocks or other errors. Thanks!

Okay. I fixed a few more little things:

- fixed the warnings about shadowed variables that Andrey pointed out
- in older branches before we switched to 64-bit SLRU page numbers, use 
'int' rather than 'int64' in page number variables
- improve wording and fix few trivial typos in comments

Committed with those last-minute changes. Thanks for the testing!

- Heikki

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 test to work with non-8kB block sizes

  2. Fix setting next multixid's offset at offset wraparound

  3. Add test for multixid wraparound

  4. Set next multixid's offset when creating a new multixid

  5. psql: Improve tab completion for large objects.

  6. Refactor some repetitive SLRU code

  7. Transaction IDs wrap around, per my proposal of 13-Aug-01. More