Horton

Re: MergeAppend could consider sorting cheapest child path

Alexander Korotkov <aekorotkov@gmail.com>

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From: Alexander Korotkov <aekorotkov@gmail.com>
To: Richard Guo <guofenglinux@gmail.com>
Cc: Andrei Lepikhov <lepihov@gmail.com>, Alexander Pyhalov <a.pyhalov@postgrespro.ru>, Andy Fan <zhihuifan1213@163.com>, Bruce Momjian <bruce@momjian.us>, PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>, Nikita Malakhov <HukuToc@gmail.com>
Date: 2025-09-08T08:49:10Z
Lists: pgsql-hackers

Commits

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  1. Mostly-cosmetic adjustments to estimate_multivariate_bucketsize().

  2. Consider fractional paths in generate_orderedappend_paths

On Mon, Sep 8, 2025 at 11:39 AM Richard Guo <guofenglinux@gmail.com> wrote:
> On Sun, Sep 7, 2025 at 8:26 PM Alexander Korotkov <aekorotkov@gmail.com> wrote:
> > Great, thank you for catching this.  The diff of costs is attached.  I
> > see the costs now are better or within the fuzz factor.
>
> Will have a review by the end of this commitfest.

Great, thank you, Richard!

------
Regards,
Alexander Korotkov
Supabase