Peter Geoghegan <peter@xxxxxxxxxxxxxxx> wrote: > Benedict Holland <benedict.m.holland@xxxxxxxxx> wrote: >> Do I seem to have this right and is there anything I can do? > > There are a couple of maintenance operations that could block a > select. Do you see any AccessExclusive locks within pg_locks? > That's the only type of lock that will block a select statement's > AccessShare lock. To check for that, see the queries on these Wiki pages: http://wiki.postgresql.org/wiki/Lock_Monitoring http://wiki.postgresql.org/wiki/Lock_dependency_information -Kevin -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
