| From: | Yann Michel <yann-postgresql(at)spline(dot)de> |
|---|---|
| To: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
| Cc: | Yann Michel <yann-postgresql(at)spline(dot)de>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: plans for bitmap indexes? |
| Date: | 2004-10-08 07:26:19 |
| Message-ID: | 20041008072619.GA6719@zoom.spline.inf.fu-berlin.de |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | 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
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Yann Michel | 2004-10-08 07:27:55 | Re: plans for bitmap indexes? |
| Previous Message | Oliver Jowett | 2004-10-08 06:01:18 | Re: Two-phase commit |