From: | "Ross J(dot) Reedstrom" <reedstrm(at)rice(dot)edu> |
---|---|
To: | pgsql-hackers(at)hub(dot)org |
Subject: | Re: 7.0.2 issues / Geocrawler |
Date: | 2000-07-12 16:48:24 |
Message-ID: | 20000712114824.C1487@rice.edu |
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Lists: | pgsql-hackers |
On Wed, Jul 12, 2000 at 11:36:44AM -0500, Ross J. Reedstrom wrote:
>
> You might be able to use a two key index, on mail_date, mailid. I think
> you have to be careful to put key you want sorted output on first,
> to ensure that the index order is presorted, and the planner know it.
Bah, I clearly need lunch: that last sentence, with better grammar:
[...] be careful to put the key you want output sorted on first,
to ensure that the index order is presorted, and that the planner
knows it.
Ross
--
Ross J. Reedstrom, Ph.D., <reedstrm(at)rice(dot)edu>
NSBRI Research Scientist/Programmer
Computer and Information Technology Institute
Rice University, 6100 S. Main St., Houston, TX 77005
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