Re: Why cannot alter a column's type when it's used by a generated column

Chao Li <li.evan.chao@gmail.com>

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From: Chao Li <li.evan.chao@gmail.com>

To: jian he <jian.universality@gmail.com>

Cc: Peter Eisentraut <peter@eisentraut.org>, PostgreSQL Hackers <pgsql-hackers@postgresql.org>

Date: 2025-10-22T08:57:37Z

Lists: pgsql-hackers

Attachments

v2-0001-Alow-ALTER-COLUMN-TYPE-when-dependent-generated-c.patch (application/octet-stream) patch v2-0001

>
>
> ```
> % make check
> …
> 1..230
> # All 230 tests passed.
> ```
>

Rebased v2 attached.

Best regards,
Chao Li (Evan)
---------------------
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https://www.highgo.com/