Bug reference: 16559
Logged by: Duy Khuong
Email address: [hidden email] PostgreSQL version: 12.3
Operating system: Red Hat Enterprise Linux release 8.0 (Ootpa)
Upgrade PostgresSQL server form 9.6.2 to 12.3 version.
Version 9.6.2 autovacuum work fine, but after upgrade to version 12.3 when
autovacuum process run on tables belong pg_catalog schema, almost
transactions in state "waiting" , after a few seconds autovacuum process was
cancel and transactions was roolback.
I run vacuum manual on tables belong pg_catalog schema , problem is same.
Plz help me.Thank so much