Please post the results of that query as run through EXPLAIN ANALYZE.
Also, I'm going to reply to this on pgsql-performance, which is
probably where it better belongs.
-tfo
--
Thomas F. O'Connell
Co-Founder, Information Architect
Sitening, LLC
http://www.sitening.com/
110 30th Avenue North, Suite 6
Nashville, TN 37203-6320
615-260-0005
On Mar 22, 2005, at 8:23 AM, Sabio - PSQL wrote:
> How can I improve speed on my queries. For example this query takes
> one day executing itself and it has not finalized !!!
> "create table tmp_partes as select * from partes where identificacion
> not in (select cedula from sujetos)"
>
> partes have 1888000 rows, an index on identificacion
> sujetos have 5500000 rows, an index on cedula