| Lists: | pgsql-hackers |
|---|
| From: | Tatsuo Ishii <ishii(at)postgresql(dot)org> |
|---|---|
| To: | pgsql-hackers(at)postgresql(dot)org |
| Subject: | 8.1.5 release note |
| Date: | 2006-12-13 03:57:02 |
| Message-ID: | 20061213.125702.85390585.t-ishii@sraoss.co.jp |
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| Lists: | pgsql-hackers |
As usual, following item in the 8.1.5 release note is pretty vague:
* Efficiency improvements in hash tables and bitmap index scans(Tom)
Especially I'm wondering what was actually improved in bitmap index
scans. I see several commit messages regarding bitmap index scans, but
I cannot figure out which one is related to the item.
Any idea?
--
Tatsuo Ishii
SRA OSS, Inc. Japan
| From: | Bruce Momjian <bruce(at)momjian(dot)us> |
|---|---|
| To: | Tatsuo Ishii <ishii(at)postgresql(dot)org> |
| Cc: | pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: 8.1.5 release note |
| Date: | 2007-02-03 23:36:28 |
| Message-ID: | 200702032336.l13NaSX15206@momjian.us |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Lists: | pgsql-hackers |
Tatsuo Ishii wrote:
> As usual, following item in the 8.1.5 release note is pretty vague:
>
> * Efficiency improvements in hash tables and bitmap index scans(Tom)
>
> Especially I'm wondering what was actually improved in bitmap index
> scans. I see several commit messages regarding bitmap index scans, but
> I cannot figure out which one is related to the item.
Sorry for the delay. I don't know the answer. The commit messages are
the only way.
--
Bruce Momjian bruce(at)momjian(dot)us
EnterpriseDB http://www.enterprisedb.com
+ If your life is a hard drive, Christ can be your backup. +