| From: | Gavin Sherry <swm(at)linuxworld(dot)com(dot)au> |
|---|---|
| To: | Jie Zhang <jzhang(at)greenplum(dot)com> |
| Cc: | pgsql-patches(at)postgresql(dot)org |
| Subject: | Re: Latest Bitmap Index patch |
| Date: | 2006-09-18 22:35:17 |
| Message-ID: | Pine.LNX.4.58.0609190832500.10480@linuxworld.com.au |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-patches |
On Mon, 18 Sep 2006, Jie Zhang wrote:
> Hi all,
>
> It seems that my previous email to pgsql-hackers about the latest bitmap
> index patch did not go through. Please find the latest patch in the
> attachment. Any suggestions and comments are appreciated.
>
> This patch is generated against the PostgreSQL CVS HEAD. This patch
> includes: (Gavin, if I miss anything, please let me know.)
>
> (1) Code style changes.
>
> (2) Fixed bugs on the multi-column support, the race condition problem if
> two backends try to insert the same new value (Thank Heikki for reporting
> this), and some others.
>
> (3) Added the stream bitmap implementation.
>
> (4) Added performance improvements for creating a bitmap index.
>
> (5) Added documentation.
Other bugs to do with page layout and WAL recovery.
Other TODOs are to add a bitmap specific cost estimate and to take another
pass over the code to push things into the usual backend style.
Gavin
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