Hi, Thankyou for the link, it heped me Thx, Tripura -- View this message in context: http://postgresql.1045698.n5.nabble.com/Improve-the-Postgres-Query-performance-tp4511903p4515457.html Sent from the PostgreSQL - performance mailing list archive at Nabble.com. -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance