RE: Using MyDatabaseId in SET_LOCKTAG_APPLY_TRANSACTION

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