On Mon, Mar 26, 2007 at 05:34:39PM +0530, Gauri Kanekar wrote:
> how to speedup nested loop queries and by which parameters.
Please post a query you're trying to tune and the EXPLAIN ANALYZE
output, as well as any changes you've already made in postgresql.conf
or configuration variables you've set in a particular session.
Without more information we can't give much advice other than to
make sure you're vacuuming and analyzing the tables often enough
to keep them from becoming bloated with dead rows and to keep the
statistics current, and to review a configuration checklist such
as this one: