Re: Pathify RHS unique-ification for semijoin planning

From: wenhui qiu <qiuwenhuifx(at)gmail(dot)com>
To: Richard Guo <guofenglinux(at)gmail(dot)com>
Cc: Alexandra Wang <alexandra(dot)wang(dot)oss(at)gmail(dot)com>, Álvaro Herrera <alvherre(at)kurilemu(dot)de>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Andy Fan <zhihuifan1213(at)163(dot)com>
Subject: Re: Pathify RHS unique-ification for semijoin planning
Date: 2025-08-08 02:21:40
Message-ID: CAGjGUAKwL-Z4WTZ6C89yXnTeUjGp9v8pPEZx54se=229x_RRow@mail.gmail.com
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Hi Richard
Thanks for your feedback. I agree this approach is better for keeping
the code style consistent.

Thanks

On Fri, Aug 8, 2025 at 9:39 AM Richard Guo <guofenglinux(at)gmail(dot)com> wrote:

> On Thu, Aug 7, 2025 at 6:04 PM wenhui qiu <qiuwenhuifx(at)gmail(dot)com> wrote:
> > In light of this commit (
> https://github.com/postgres/postgres/commit/e035863c9a04beeecc254c3bfe48dab58e389e10)
> I also recommend changing the macro to a static inline function. Macros are
> harder to debug and lack type safety.
>
> I'm inclined not to do that. We already have other macros for
> checking whether a relation is of a certain kind, and I'd prefer to
> keep the new check consistent with those.
>
> Thanks
> Richard
>

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