[NOVICE] Long count(*) time

Hello -

I'm running PG 8.2 on an 8-processor 16G Unix machine. The machine is dedicated to the db, and only 5 threads/processors are busy. The following query takes 70 seconds to execute.

     select count(*) from url_list_url;
There are 64,219,173 rows in the table. The table consists of an integer field and a text field. The average length of the text field is 50 characters. There are btree indexes on both fields. The integer field is the key.

70 seconds seems to be a long time for this kind of query. Is this normal?

Thanks.

David Received on Tue Sep 25 16:05:14 2007