Re: plans for bitmap indexes? - Mailing list pgsql-hackers

From Yann Michel
Subject Re: plans for bitmap indexes?
Date
Msg-id 20041008072619.GA6719@zoom.spline.inf.fu-berlin.de
Whole thread Raw
In response to Re: plans for bitmap indexes?  (Bruce Momjian <pgman@candle.pha.pa.us>)
List pgsql-hackers
Hi,

On Thu, Oct 07, 2004 at 06:54:15PM -0400, Bruce Momjian wrote:
> > I'd like to know if there are any plans on introducing bitmap indexes
> > into postgresql. I think this could mean a big performance improvement
> > especially for datawarehousing applications. I know that there is an
> > index type hash but I don't know how both types are comparable due to
> > they are both best usable for equality expressions.
> 
> Lots of people have talked about it but I don't know anyone coding it.

have you ever discussed if bitmap indexes lead to better query
performance than hash indexes will do?

Regards,
Yann


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