From: Andreas Kretschmer <akretschmer@spamfence.net>
To: pgsql-performance@postgresql.org
Subject: Re: BETWEEN optimizer problems with single-value range
Date: Wed, 15 Mar 2006 21:47:00 +0100
Message-ID: <20060315204700.GA17623@KanotixBox> (raw)
In-Reply-To: <b42b73150603151136wd1a8b1dw6e03d39f07fd6cb@mail.gmail.com>
References: <44180105.EE98.0025.0@wicourts.gov>
<b42b73150603151136wd1a8b1dw6e03d39f07fd6cb@mail.gmail.com>
Merlin Moncure <mmoncure@gmail.com> schrieb:
> On 3/15/06, Kevin Grittner <Kevin.Grittner@wicourts.gov> wrote:
> > Attached is a simplified example of a performance problem we have seen,
> > with a workaround and a suggestion for enhancement (hence both the
> > performance and hackers lists).
>
>
> Hi Kevin. In postgres 8.2 you will be able to use the row-wise
8.2? AFAIK, Feature freeze in juni/juli this year...
Release august/september.
> comparison for your query which should guarantee good worst case
> performance without having to maintain two separate query forms. it
Perhaps, a bitmap index scan (since 8.1) are useful for such querys.
Thats why i asked which version.
Andreas
--
Really, I'm not out to destroy Microsoft. That will just be a completely
unintentional side effect. (Linus Torvalds)
"If I was god, I would recompile penguin with --enable-fly." (unknow)
Kaufbach, Saxony, Germany, Europe. N 51.05082°, E 13.56889°
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Reply to all the recipients using the --to and --cc options:
reply via email
To: pgsql-performance@postgresql.org
Cc: akretschmer@spamfence.net
Subject: Re: BETWEEN optimizer problems with single-value range
In-Reply-To: <20060315204700.GA17623@KanotixBox>
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox