On Fri, Nov 4, 2011 at 10:34 AM, Tom Lane <t...@sss.pgh.pa.us> wrote: > Robert's point about sinval catchup is another good one, though > I don't remember what that does to the pg_stat_activity display.
My thought was that sinval catchup might require acquiring a relation lock (e.g. on pg_class), and that might block waiting for a lock. Not sure it's possible, but even if it can't happen today, it doesn't seem impossible that we might want to let it happen in the future. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company -- Sent via pgsql-hackers mailing list (email@example.com) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers