Horton

RE: Using MyDatabaseId in SET_LOCKTAG_APPLY_TRANSACTION

Hayato Kuroda (Fujitsu) <kuroda.hayato@fujitsu.com>

View thread
From: "Hayato Kuroda (Fujitsu)" <kuroda.hayato@fujitsu.com>
To: 'Maxim Orlov' <orlovmg@gmail.com>, Heikki Linnakangas <hlinnaka@iki.fi>
Cc: Postgres hackers <pgsql-hackers@lists.postgresql.org>
Date: 2025-12-03T12:27:06Z
Lists: pgsql-hackers 
Dear Maxim,

I recalled my post [1]. The database id is helpful when we output lock
information by DescribeLockTag(). Since it would be called when the system might
be under the deadlock, any locks should not be acquired even AccessShare. It can
be done if catcache is missed.

[1]: https://www.postgresql.org/message-id/TYAPR01MB5866E4B208BFAAA5A05B1EECF53F9%40TYAPR01MB5866.jpnprd01.prod.outlook.com

Best regards,
Hayato Kuroda
FUJITSU LIMITED