On Fri, 2003-06-20 at 13:06, Yusuf wrote:
> rbt@rbt.ca wrote:
> > On Fri, 2003-06-20 at 15:53, Yusuf wrote:
> >
> >>Why would the following query take soo long to run? What does 28.12 msec represent, since the total running time is
> >>16801.86 ms.
> >
> >
> > I'd hazard to guess that you have a whole slew of foreign keys cascading
> > to delete, update, or check many rows from other tables.
> >
> > Those are not represented in the explains at the moment.
> >
>
> That's what I thought at first, so I dropped the foreign key constraints. The table is referenced by 2 tables, one
of
> which has around 200 000 records and the other has 0 records.
Hmm... EXPLAIN ANALYZE your select again, but join both of those
referenced tables to the appropriate columns.
--
Rod Taylor <rbt@rbt.ca>
PGP Key: http://www.rbt.ca/rbtpub.asc
