Please look at following topic:- http://www.postgresql.org/docs/9.0/static/functions-admin.html try using #SELECT pg_terminate_backend(2738); ----- Thanks and Regards, Sachin Kotwal NTT-DATA-OSS Center (Pune) -- View this message in context: http://postgresql.1045698.n5.nabble.com/Problems-with-vacuum-tp5769548p5772158.html Sent from the PostgreSQL - general mailing list archive at Nabble.com. -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general