Horton

Re: Add 64-bit XIDs into PostgreSQL 15

Corey Huinker <corey.huinker@gmail.com>

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From: Corey Huinker <corey.huinker@gmail.com>
To: Robert Haas <robertmhaas@gmail.com>
Cc: Peter Geoghegan <pg@bowt.ie>, Fujii Masao <masao.fujii@oss.nttdata.com>, Maxim Orlov <orlovmg@gmail.com>, pgsql-hackers <pgsql-hackers@postgresql.org>
Date: 2022-01-07T23:36:11Z
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

>
>  I'd be
> curious to know where we found the bits for that -- the tuple header
> isn't exactly replete with extra bit space.
>

+1 - and can we somehow shoehorn in a version # into the new format so we
never have to look for spare bits again.