Hi, I notices a weird thing here.
version 7.2.1 on Solaris table "test", has a field "state". There are 4 "state" values, 1, 2, 3, 4. select count(*) from test group by state; took 11500 msec but select count(*) from test where state = 1; select count(*) from test where state = 2; select count(*) from test where state = 3; select count(*) from test where state = 4; total took 626 msec Why ?? thanks, kathy ---------------------------(end of broadcast)--------------------------- TIP 5: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faqs/FAQ.html