On Wed, Jul 7, 2010 at 10:39 AM, damien hostin <damien.hostin@axege.com> wrote:
> Hello again,
>
> At last, I check the same query with the same data on my desktop computer.
> Just after loading the data, the queries were slow, I launch a vaccum
> analyse which collect good stats on the main table, the query became quick
> (~200ms). Now 1classic sata disk computer is faster than our little monster
> server !!
Have you tried running ANALYZE on the production server?
You might also want to try ALTER TABLE ... SET STATISTICS to a large
value on some of the join columns involved in the query.
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise Postgres Company