Re: On-disk bitmap index patch

From: Bruce Momjian <bruce(at)momjian(dot)us>
To: Luke Lonergan <llonergan(at)greenplum(dot)com>
Cc: "Jim C(dot) Nasby" <jnasby(at)pervasive(dot)com>, Jie Zhang <jzhang(at)greenplum(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Mark Kirkwood <markir(at)paradise(dot)net(dot)nz>, Josh Berkus <josh(at)agliodbs(dot)com>, Gavin Sherry <swm(at)linuxworld(dot)com(dot)au>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: On-disk bitmap index patch
Date: 2006-07-28 19:25:53
Message-ID: 200607281925.k6SJPr929778@momjian.us
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Luke Lonergan wrote:
> Jim,
>
> On 7/28/06 10:17 AM, "Jim C. Nasby" <jnasby(at)pervasive(dot)com> wrote:
>
> > If the usefulness of bitmap indexes is still in doubt, could someone at
> > Greenplum provide data from actual data warehouses from actual
> > customers?
>
> First, is anyone in doubt?

Sure. I think we are going to have to see the final patch and have
users test it with their workload to find the useful range.

--
Bruce Momjian bruce(at)momjian(dot)us
EnterpriseDB http://www.enterprisedb.com

+ If your life is a hard drive, Christ can be your backup. +

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