Ganesh Kannan <ganesh.kannan@xxxxxxxxxxxxxxxxxxxx> writes: > 1) After reading the documentation, I thought I could try to vacuum > those 20 tables that were never vacuumed individually ( with relfrozenid > more than 2 billion) in single-user mode, but it is not working (error > copied below). That is not an error, it's just a warning: > backend> vacuum freeze schema.wd_p51_y2015; > 2017-02-07 23:25:15 EST [54045]: [8-1] user=,db=,app=,client= WARNING: database "db1" must be vacuumed within 999999 transactions > 2017-02-07 23:25:15 EST [54045]: [9-1] user=,db=,app=,client= HINT: To avoid a database shutdown, execute a database-wide VACUUM in that database. It's telling you that you haven't finished fixing the problem, not that this command didn't do anything. > Is there a way to do vacuum of individual tables in > single-user mode? You're doing it. I don't think you really need the "freeze" modifier though, and that may be forcing more I/O than is needed to get out of trouble. regards, tom lane -- Sent via pgsql-admin mailing list (pgsql-admin@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-admin