On Thu, 5 Jan 2006 17:16:47 +0200 "Andy" <frum@xxxxxxxxx> wrote: > Hi to all, > > I have the following query: > > SELECT count(*) FROM orders o > INNER JOIN report r ON r.id_order=o.id > WHERE o.id_status>3 > How can I improve this query's performace?? The ideea is to count all > the values that I have in the database for the following conditions. > If the users puts in some other search fields on the where then the > query runs faster but in this format sometimes it takes a lot lot of > time(sometimes even 2,3 seconds). > > Can this be tuned somehow??? Do you have an index on report.id_order ? Try creating an index for it if not and run a vacuum analyze on the table to see if it gets rid of the sequence scan in the plan. --------------------------------- Frank Wiles <frank@xxxxxxxxx> http://www.wiles.org ---------------------------------
