Re: Caching for stable expressions with constant arguments v6

Where are we on this?

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On Mon, Jan 16, 2012 at 07:06:45PM +0200, Marti Raudsepp wrote:
> Hi list,
>
> Here's v6 of my expression caching patch. The only change in v6 is
> added expression cost estimation in costsize.c. I'm setting per-tuple
> cost of CacheExpr to 0 and moving sub-expression tuple costs into the
> startup cost.
>
> As always, this work is also available from my Github "cache" branch:
> https://github.com/intgr/postgres/commits/cache
>
> This patch was marked as "Returned with Feedback" from the 2011-11
> commitfest. I expected to get to tweak the patch in response to
> feedback before posting to the next commitfest. But said feedback
> didn't arrive, and with me being on vacation, I missed the 2012-01 CF
> deadline. :(
>
> I will add it to the 2012-01 commitfest now, I hope that's OK. If not,
> feel free to remove it and I'll put it in 2012-Next.
>
> PS: Jaime, have you had a chance to look at the patch? Even if you're
> not done with the review, I'd be glad to get some comments earlier.
> And thanks for reviewing.
>
> Regards,
> Marti
>
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Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://enterprisedb.com

+ It's impossible for everything to be true. +