Re: Assertion failure with barriers in parallel hash join

Thomas Munro <thomas.munro@gmail.com>

From: Thomas Munro <thomas.munro@gmail.com>

To: Melanie Plageman <melanieplageman@gmail.com>

Cc: Michael Paquier <michael@paquier.xyz>, Postgres hackers <pgsql-hackers@lists.postgresql.org>

Date: 2021-03-17T05:17:24Z

Lists: pgsql-hackers

On Sat, Mar 6, 2021 at 9:56 AM Thomas Munro <thomas.munro@gmail.com> wrote:
> While working on Melanie's Parallel Hash Full Join patch I remembered
> that this (apparently extremely rare) race still needs fixing.  Here
> is a slightly tidied version, which I'm adding to the next CF for CI
> coverage.

Pushed and back-patched.

Commits

Fix race in parallel hash join batch cleanup, take II.
- ef16d27245f6 11.20 landed
- 44d44aa9712f 12.15 landed
- 6e94d62e3f04 13.11 landed
- 1b9e42e82ae6 14.8 landed
- c03c6e8cf6a9 15.3 landed
- 8d578b9b2e37 16.0 landed
Revert "Fix race in Parallel Hash Join batch cleanup."
- 7f7f25f15edb 14.0 landed
- 492f6e21038a 11.12 landed
- b9ed85698f3e 12.7 landed
- 69739ec317ae 13.3 landed
Fix race in Parallel Hash Join batch cleanup.
- 0129c56fbe5c 11.12 landed
- 8fa2478b407e 12.7 landed
- 4e0f0995e923 13.3 landed
- 3b8981b6e1a2 14.0 landed
Mop-up for wait event naming issues.
- 3048898e73c7 13.0 cited