| From: | Bruce Momjian <bruce(at)momjian(dot)us> |
|---|---|
| To: | Alvaro Herrera <alvherre(at)2ndquadrant(dot)com> |
| Cc: | Pg Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: multixact optimization patches |
| Date: | 2014-10-11 21:31:52 |
| Message-ID: | 20141011213152.GL21267@momjian.us |
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| Lists: | pgsql-hackers |
On Tue, Jul 29, 2014 at 03:56:19PM -0400, Alvaro Herrera wrote:
> I have just pushed two optimization patches for multixacts to HEAD only.
> I hesitate to backpatch them to 9.3 right away, but will consider doing
> so if people think differently.
>
> I also have a patch that supposedly fixes the performance regression
> reported in bug #8470, but it's considerably more obscure so I'm not
> pushing it right now. It's attached. I'd need to spend some more time
> with it to ensure it doesn't break other cases before pushing. I know
> some people is interested in this fix and thought I'd throw it out there
> to gather some input.
>
> Since it affects much of the same code as the two patches I just pushed,
> using it in 9.3 requires cherry-picking those patches, but they apply
> without conflicts so it should be easy.
Wow, this is some very complex code. Are you closer to a decision on it?
--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://enterprisedb.com
+ Everyone has their own god. +
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