Re: Bitmap index status

From: "Jie Zhang" <jzhang(at)greenplum(dot)com>
To: "Mark Wong" <markw(at)osdl(dot)org>
Cc: "Heikki Linnakangas" <heikki(at)enterprisedb(dot)com>, swm(at)linuxworld(dot)com(dot)au, "PostgreSQL-development" <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Bitmap index status
Date: 2006-09-25 18:19:35
Message-ID: C13D6BC7.B381%jzhang@greenplum.com
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Hi Mark,

Thanks for doing the test. I checked out the link you provided below. I am a
little confused about the goal of these tests. Do you plan to test the
overall performance of postgreSQL on handling TPC-H queries?

Thanks,
Jie

On 9/22/06 3:45 PM, "Mark Wong" <markw(at)osdl(dot)org> wrote:

> Jie Zhang wrote:
>> Hi Heikki and all,
>>
>> I just sent the latest bitmap index patch to the list. I am not sure if
>> there is any size limit for this mailing list. If you have received my
>> previous email, please let me know.
>
> Hi Jie,
>
> I know I said I was going to get testing on this months ago but I've
> been juggling between 3 systems due to disk failures and other hardware
> configuration issues. Anyways, I've take a baseline run of only the
> power test using a 1GB database with the patch 09-17 patch against a
> snapshot of pgsql from 2006-09-17:
>
> http://dbt.osdl.org/dbt/dbt3testing/results/dev8-007/2/
>
> Do you think the 1GB scale factor will be sufficient for testing as it
> will certainly be faster? Do you think testing with just a power test
> will be sufficient for now? I really don't have a good reason why I
> didn't run a throughput test other than to save time. :) I also wanted
> to get your opinion again on which indexes we will want to try first.
>
> Thanks,
> Mark
>

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