From: | Richard Guo <guofenglinux(at)gmail(dot)com> |
---|---|
To: | Li Japin <japinli(at)hotmail(dot)com> |
Cc: | Alena Rybakina <lena(dot)ribackina(at)yandex(dot)ru>, wenhui qiu <qiuwenhuifx(at)gmail(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>, vignesh C <vignesh21(at)gmail(dot)com> |
Subject: | Re: Support "Right Semi Join" plan shapes |
Date: | 2024-07-04 09:17:41 |
Message-ID: | CAMbWs4_zfEFwxB-miGP4QkPQD-n+7G6bReM49actA+Av-Dhm0w@mail.gmail.com |
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Lists: | pgsql-hackers |
On Fri, Jun 28, 2024 at 3:21 PM Richard Guo <guofenglinux(at)gmail(dot)com> wrote:
> On Fri, Jun 28, 2024 at 2:54 PM Richard Guo <guofenglinux(at)gmail(dot)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
Attachment | Content-Type | Size |
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v8-0001-Support-Right-Semi-Join-plan-shapes.patch | application/octet-stream | 33.0 KB |
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