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

From: Chao Li <li(dot)evan(dot)chao(at)gmail(dot)com>
To: jian he <jian(dot)universality(at)gmail(dot)com>
Cc: Peter Eisentraut <peter(at)eisentraut(dot)org>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Why cannot alter a column's type when it's used by a generated column
Date: 2025-10-22 08:57:37
Message-ID: CAEoWx2mfQJgn5m8cG3OwBMce+denAeSN7-jq1DtR_gDmzrCM8A@mail.gmail.com
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>
>
> ```
> % make check
> …
> 1..230
> # All 230 tests passed.
> ```
>

Rebased v2 attached.

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

Attachment Content-Type Size
v2-0001-Alow-ALTER-COLUMN-TYPE-when-dependent-generated-c.patch application/octet-stream 11.6 KB

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