And maybe make sure that the id column is indexed, and see what EXPLAIN says. http://wiki.postgresql.org/wiki/Using_EXPLAIN -- Ian. On Tue, Feb 2, 2010 at 10:56 AM, Bret S. Lambert <bret.lambert@xxxxxxxxx> wrote: > On Tue, Feb 02, 2010 at 11:51:57AM +0100, fida aljounaidi wrote: >> Hi >> >> I have an sql query which takes 20 seconds to be executed. >> >> this sql query contain more than 870 id under the select where in () >> condition. > > Add a column to the table which denotes the characteristic that those > 870 ids share, and select based on that? > >> >> So , it is not a large row result but a big list of conditions to be >> crossed. >> >> I'm using postgresql 8.4. >> >> Thanks for help > > -- > Sent via pgsql-admin mailing list (pgsql-admin@xxxxxxxxxxxxxx) > To make changes to your subscription: > http://www.postgresql.org/mailpref/pgsql-admin > -- Sent via pgsql-admin mailing list (pgsql-admin@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-admin
