Re: BUG #17540: Prepared statement: PG switches to a generic query plan which is consistently much slower

From: Richard Guo <guofenglinux(at)gmail(dot)com>
To: David Rowley <dgrowleyml(at)gmail(dot)com>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, william(dot)duclot(at)gmail(dot)com, PostgreSQL mailing lists <pgsql-bugs(at)lists(dot)postgresql(dot)org>
Subject: Re: BUG #17540: Prepared statement: PG switches to a generic query plan which is consistently much slower
Date: 2023-07-26 03:17:44
Message-ID: CAMbWs48EPNDgu+ndk5jMQhAiJLv=f4GKJ4p_f4sx4+xAUO7GdQ@mail.gmail.com
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On Mon, Jul 10, 2023 at 2:39 PM Richard Guo <guofenglinux(at)gmail(dot)com> wrote:

> Here is v3 patch with regression tests. I add the new test into the
> group where stats test is in, but I'm not sure if this is the right
> place.
>

cfbot says there is a test failure in postgres_fdw. So update to v4 to
fix that.

Thanks
Richard

Attachment Content-Type Size
v4-0001-ignore-is-not-null-quals-on-not-null-columns.patch application/octet-stream 19.1 KB

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