Horton

Re: ERROR: corrupt MVNDistinct entry

Richard Guo <guofenglinux@gmail.com>

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From: Richard Guo <guofenglinux@gmail.com>
To: Andrei Lepikhov <lepihov@gmail.com>
Cc: PostgreSQL-development <pgsql-hackers@postgresql.org>
Date: 2025-01-02T09:30:04Z
Lists: pgsql-hackers 
On Tue, Dec 31, 2024 at 5:40 PM Richard Guo <guofenglinux@gmail.com> wrote:
> Regarding the back-patch, this patch is a bug fix, which suggests it
> should be back-patched.  However, it also changes some plans by fixing
> the cost estimation.  Does anyone know what our usual approach is in
> this situation?

Although this patch could result in plan changes, it fixes an actual
bug, so I've back-patched it to v16.

Thanks
Richard

Commits

  1. Ignore nullingrels when looking up statistics

  2. Make Vars be outer-join-aware.