Horton

Re: Support "Right Semi Join" plan shapes

wenhui qiu <qiuwenhuifx@gmail.com>

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From: wenhui qiu <qiuwenhuifx@gmail.com>
To: Richard Guo <guofenglinux@gmail.com>
Cc: Li Japin <japinli@hotmail.com>, Alena Rybakina <lena.ribackina@yandex.ru>, PostgreSQL-development <pgsql-hackers@postgresql.org>, vignesh C <vignesh21@gmail.com>
Date: 2024-07-04T09:25:12Z
Lists: pgsql-hackers

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  1. Support "Right Semi Join" plan shapes

  2. Fix neqjoinsel's behavior for semi/anti join cases.

Hi Richard Guo
     Thank you for updating the patch.Tested on v8 , It looks good to me



Thanks

Richard Guo <guofenglinux@gmail.com> 于2024年7月4日周四 17:18写道：

> On Fri, Jun 28, 2024 at 3:21 PM Richard Guo <guofenglinux@gmail.com>
> wrote:
> > On Fri, Jun 28, 2024 at 2:54 PM Richard Guo <guofenglinux@gmail.com>
> wrote:
> > > I've refined this test case further to make it more stable by using an
> > > additional filter 'a.tenthous < 5000'.  Besides, I noticed a surplus
> > > blank line in ExecHashJoinImpl().  I've removed it in the v7 patch.
> >
> > BTW, I've also verified the empty-rel optimization for hash join and
> > AFAICT it works correctly for the new right-semi join.
>
> Here is a new rebase.
>
> Barring objections, I'm planning to push it soon.
>
> Thanks
> Richard
>