Horton

Re: BUG #18014: Releasing catcache entries makes schema_to_xmlschema() fail when parallel workers are used

Kyotaro Horiguchi <horikyota.ntt@gmail.com>

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From: Kyotaro Horiguchi <horikyota.ntt@gmail.com>
To: exclusion@gmail.com
Cc: pgsql-bugs@lists.postgresql.org
Date: 2023-07-20T07:44:59Z
Lists: pgsql-bugs 
At Thu, 20 Jul 2023 16:28:02 +0900 (JST), Kyotaro Horiguchi <horikyota.ntt@gmail.com> wrote in 
> That is, the function is not parallel-safe. In fact it is marked as
> 'r' in pg_proc.proparallel. So, the real question appears to be how it
> ended up running in a paralell worker.

Stupid. What we should do here would be ensuring the funtion doesn't
invoke parallel workers, maybe.

regards.

-- 
Kyotaro Horiguchi
NTT Open Source Software Center

Commits

  1. Harden xxx_is_visible() functions against concurrent object drops.

  2. Harden has_xxx_privilege() functions against concurrent object drops.