Re: plans for bitmap indexes?

From: Yann Michel <yann-postgresql(at)spline(dot)de>
To: Dave Page <dpage(at)vale-housing(dot)co(dot)uk>
Cc: Yann Michel <yann-postgresql(at)spline(dot)de>, Reini Urban <rurban(at)x-ray(dot)at>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: plans for bitmap indexes?
Date: 2004-10-08 09:45:28
Message-ID: 20041008094528.GA9375@zoom.spline.inf.fu-berlin.de
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Hi,

On Fri, Oct 08, 2004 at 10:09:18AM +0100, Dave Page wrote:
> I think what Reini was asking was why do you think you need bitmap
> indexes as opposed to any existing type?

due to I'm developing a datawarehousing application we have lots of
fact-data in our central fact-table. As I know how to improve
performance on Oracle based datawarehouses, I'm used to add bitmap
indexes for atributes having only a few distinct values.
So I was looking for any comparable indexing technology but didn't find
any so far.

Regards,
Yann

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