Re: Add 64-bit XIDs into PostgreSQL 15

Justin Pryzby <pryzby@telsasoft.com>

From: Justin Pryzby <pryzby@telsasoft.com>
To: Pavel Borisov <pashkin.elfe@gmail.com>
Cc: Maxim Orlov <orlovmg@gmail.com>, Aleksander Alekseev <aleksander@timescale.com>, pgsql-hackers@lists.postgresql.org, Stephen Frost <sfrost@snowman.net>, Alexander Korotkov <aekorotkov@gmail.com>, Andres Freund <andres@anarazel.de>, Ilya Anfimov <ilan@tzirechnoy.com>
Date: 2022-07-01T02:53:35Z
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

This seems to be causing cfbot/cirrusci to time out.

Here's the build history
https://cirrus-ci.com/github/postgresql-cfbot/postgresql/commitfest/38/3594

https://cirrus-ci.com/task/4809278652416000 4 weeks ago on macos
https://cirrus-ci.com/task/5559884417597440 2 weeks ago on macos
https://cirrus-ci.com/task/6629554545491968 2 weeks ago on macos
https://cirrus-ci.com/task/5253255562264576 this week on freebsd

It seems like there's a larger discussion to be had about the architecture
about the patch, but I thought I'd point out this detail.