Horton

Re: Replace known_assigned_xids_lck by memory barrier

Michail Nikolaev <michail.nikolaev@gmail.com>

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From: Michail Nikolaev <michail.nikolaev@gmail.com>
To: Nathan Bossart <nathandbossart@gmail.com>
Cc: Robert Haas <robertmhaas@gmail.com>, PostgreSQL Hackers <pgsql-hackers@postgresql.org>, Tom Lane <tgl@sss.pgh.pa.us>
Date: 2023-09-05T23:56:16Z
Lists: pgsql-hackers 
Thanks everyone for help!

Commits

  1. Replace known_assigned_xids_lck with memory barriers.

  2. Replace the KnownAssignedXids hash table with a sorted-array data structure,