| From: | Richard Huxton <dev(at)archonet(dot)com> |
|---|---|
| To: | olivier HARO <o(dot)haro(at)en-compro(dot)com> |
| Cc: | pgsql-performance(at)postgresql(dot)org |
| Subject: | Re: General performance problem! |
| Date: | 2004-08-17 14:16:14 |
| Message-ID: | 4122132E.80603@archonet.com |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-performance |
olivier HARO wrote:
> This table contains 5 000 000 records
>
> I have a PHP application which often makes queries on this table (especially on the "cp","naf","effectif" fields)
>
> Querries are like :
> select (distint cp) from base_aveugle where cp='201A' and effectif between 1 and 150
> select (*) from base_aveugle where naf in ('721A','213F','421K') and cp in ('54210','21459','201A') and effectif < 150
We'll need to know what version of PostgreSQL you're using and also what
the output of EXPLAIN ANALYZE shows for your example queries.
--
Richard Huxton
Archonet Ltd
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Igor Artimenko | 2004-08-17 14:22:59 | I could not get postgres to utilizy indexes |
| Previous Message | Leeuw van der, Tim | 2004-08-17 13:57:25 | Re: General performance problem! |