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Alow ALTER COLUMN TYPE when dependent generated column has SET EXPRESSION

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ID 6146
Title Alow ALTER COLUMN TYPE when dependent generated column has SET EXPRESSION
CI (CFBot) Needs rebase! Needs rebase since 3 months. Failing since 3 months.
Additional links previous successfully applied patch (outdated):
Summary
Stats (from CFBot) Unknown
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Created 2025-10-21 07:13:37
Last modified 2025-11-12 00:02:11 (4 months ago)
Latest email 2025-10-22 08:57:37 (5 months ago)
Status

PG19-4 (2026-01-01 – 2026-01-31): Needs review

PG19-3 (2025-11-01 – 2025-11-30): Moved to different CF
Target version 19
Authors Chao Li (chaol)
Reviewers Become reviewer
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Why cannot alter a column's type when it's used by a generated column
First at 2025-10-17 02:04:11 by Chao Li <li.evan.chao at gmail.com>
Latest at 2025-12-08 09:18:35 by Chao Li <li.evan.chao at gmail.com>
Latest attachment (v3-0001-Alow-ALTER-COLUMN-TYPE-when-dependent-generated-c.patch) at 2025-12-08 09:18:35 from Chao Li <li.evan.chao at gmail.com>
    

Attachment (v3-0001-Alow-ALTER-COLUMN-TYPE-when-dependent-generated-c.patch) at 2025-12-08 09:18:35 from Chao Li <li.evan.chao at gmail.com> (Patch: Yes)
    Attachment (v2-0001-Alow-ALTER-COLUMN-TYPE-when-dependent-generated-c.patch) at 2025-10-22 08:57:37 from Chao Li <li.evan.chao at gmail.com> (Patch: Yes)
    Attachment (v1-0001-Alow-ALTER-COLUMN-TYPE-when-dependent-generated-c.patch) at 2025-10-21 07:03:41 from Chao Li <li.evan.chao at gmail.com> (Patch: Yes)
    Attachment (v1-0001-SET-DATA-TYPE-cope-with-generation-expression-dependency.patch) at 2025-10-20 07:51:11 from jian he <jian.universality at gmail.com> (Patch: Yes)
History
When Who What
2025-12-15 15:48:21 CFbot Patch needs rebase
2025-11-12 00:02:11 Chao Li (chaol) Moved from CF PG19-3 to CF PG19-4
2025-10-21 07:13:38 Chao Li (chaol) Attached mail thread A61F14F6-339D-46EF-9FC1-A8438FE3BE86@gmail.com
2025-10-21 07:13:37 Chao Li (chaol) Created patch record

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