Sandeep Gupta <gupta.sandeep@xxxxxxxxx> writes: > details regarding buffer usage: > [ 100% buffer hit rate ] Your database is evidently fully cached in memory. If that's the operating mode you expect, you need to change the planner's cost parameters, in particular reduce random_page_cost to equal seq_page_cost. There is plenty of material about this on the PG wiki or in the pgsql-performance archives. regards, tom lane -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general