Re: bug, ALTER TABLE call ATPostAlterTypeCleanup twice for the same relation

From: jian he <jian(dot)universality(at)gmail(dot)com>
To: PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: bug, ALTER TABLE call ATPostAlterTypeCleanup twice for the same relation
Date: 2025-09-27 14:23:59
Message-ID: CACJufxG1Qwj=mHHZNT6L=7g9MeizbD3B+1=HN1TDvv4M92pTEQ@mail.gmail.com
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On Sat, Sep 27, 2025 at 5:54 PM jian he <jian(dot)universality(at)gmail(dot)com> wrote:
>
> While at it, maybe we can also polish the comment below in ATRewriteCatalogs.
> /*
> * After the ALTER TYPE or SET EXPRESSION pass, do cleanup work
> * (this is not done in ATExecAlterColumnType since it should be
> * done only once if multiple columns of a table are altered).
> */
> but I didn't do it...

I add one sentence:
Note: ATPostAlterTypeCleanup must be called only once per relation!

I also polished the regress tests.

Attachment Content-Type Size
v2-0001-ALTER-TABLE-each-relation-call-ATPostAlterTypeCleanup.patch text/x-patch 5.3 KB

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