| From: | "Neil Conway" <neilc(at)samurai(dot)com> |
|---|---|
| To: | <hlapp(at)gmx(dot)net> |
| Cc: | <pgsql-performance(at)postgresql(dot)org> |
| Subject: | Re: join over 12 tables takes 3 secs to plan |
| Date: | 2003-01-02 21:11:34 |
| Message-ID: | 1455.24.112.166.30.1041541894.squirrel@mailbox.samurai.com |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-jdbc pgsql-performance |
Hilmar Lapp said:
> Thanks for the tip. I have to admit that I have zero experience with
> tuning GAs. If anyone could provide a starter which parameters are best
> to start with? Or is it in the docs?
http://www.ca.postgresql.org/users-lounge/docs/7.3/postgres/runtime-config.html
lists the available options.
I'd think that GEQO_EFFORT, GEQO_GENERATIONS, and GEQO_POOL_SIZE would be
the parameters that would effect performance the most.
Cheers,
Neil
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Tomisław Kityński | 2003-01-02 21:12:05 | xactisolevel --- ehh? |
| Previous Message | Hilmar Lapp | 2003-01-02 21:08:24 | Re: join over 12 tables takes 3 secs to plan |
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Neil Conway | 2003-01-02 21:21:28 | Re: join over 12 tables takes 3 secs to plan |
| Previous Message | Hilmar Lapp | 2003-01-02 21:08:24 | Re: join over 12 tables takes 3 secs to plan |