From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
---|---|
To: | Luca Ferrari <fluca1978(at)infinito(dot)it> |
Cc: | pgsql-general(at)postgresql(dot)org |
Subject: | Re: query optimizer |
Date: | 2007-07-21 04:21:10 |
Message-ID: | 20230.1184991670@sss.pgh.pa.us |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-general |
Luca Ferrari <fluca1978(at)infinito(dot)it> writes:
>> src/backend/optimizer/README
> I've read this yesterday, very interesting, but I'm looking for something
> similar related to geqo. I mean, is there any presentation/demo that
> step-y-step explains how geqo could take decisions?
There's not a lot, but I just made a few improvements here and here:
http://developer.postgresql.org/pgdocs/postgres/planner-optimizer.html
http://developer.postgresql.org/pgdocs/postgres/geqo-pg-intro.html
Beyond that, the GEQO chapter provides several references, and IMHO
you should not be all that resistant to looking into the source code.
Even if you don't read C well, many of the files provide a wealth of
info in the comments.
regards, tom lane
From | Date | Subject | |
---|---|---|---|
Next Message | Josh Tolley | 2007-07-21 05:32:29 | Re: Difference between PRIMARY KEY index and UNIQUE-NOT NULL index |
Previous Message | Michael Glaesemann | 2007-07-21 01:37:48 | Re: Foreign key constraint question |