Re: Many of psql's describe functions bloat cache / waste mem

From: Jan Nidzwetzki <jan(at)planetscale(dot)com>
To: xliu19163(at)gmail(dot)com, Andres Freund <andres(at)anarazel(dot)de>
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: Many of psql's describe functions bloat cache / waste mem
Date: 2026-09-03 10:03:54
Message-ID: 2eeb05e6-eec4-4cd2-8bca-3e69188712b5@planetscale.com
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Hi Xiaoyu,

On 03.09.26 04:30, xliu19163(at)gmail(dot)com wrote:
> Hi Jan,
>
> Thanks for testing v2 and for the additional review.
>
> Attached is v3. I split the changes into two patches:

Thank you for the v3 patch series. I have applied the patches in order
and performed a "make check-world" after each patch. They applied
cleanly to the master branch, and all tests passed successfully.

I ran a couple of tests and compared the command output to master. The
output looks good and unchanged. I can also confirm that the memory
reduction I measured with v2 is still there.

So, the series looks good to me.

Best regards
Jan

--
Jan Nidzwetzki
PlanetScale Postgres Core Team

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