Unexpected reindex when altering column types for partitioned tables

Title

CI (CFBot)

Needs rebase! Needs rebase since 1 month. Failing since 1 month.
Additional links previous successfully applied patch (outdated):

Stats (from CFBot)

Unknown

Tags

DDL Performance

Created

2026-06-15 12:52:22

Last modified

2026-09-16 16:59:22 (14 hours ago)

Latest email

2026-09-16 16:55:58 (14 hours ago)

Status

PG20-2 (2026-09-01 – 2026-09-30): Waiting on Author

PG20-1 (2026-07-01 – 2026-07-31): Moved to different CF

Target version

Authors

Álvaro Rodríguez (arodrgr)

Reviewers

Alberto Piai (albe) Become reviewer

Committer

Links

Emails

Unexpected reindex when altering column types for partitioned tables: First at 2026-06-08 13:50:40 by Álvaro Rodríguez <alvaro at datadoghq.com>
Latest at 2026-09-16 16:55:58 by "Alberto Piai" <alberto.piai at gmail.com>
Latest attachment (v2-0002-Skip-index-rewriting-when-possible-on-ALTER-TABLE.patch) at 2026-06-16 11:24:59 from Álvaro Rodríguez <alvaro at datadoghq.com>
Attachment (v2-0002-Skip-index-rewriting-when-possible-on-ALTER-TABLE.patch) at 2026-06-16 11:24:59 from Álvaro Rodríguez <alvaro at datadoghq.com> (Patch: Yes)
Attachment (v1-0001-Add-regression-test-to-highlight-unexpected-behav.patch) at 2026-06-08 13:50:40 from Álvaro Rodríguez <alvaro at datadoghq.com> (Patch: Yes)

History

When	Who	What
2026-09-16 16:59:22	Alberto Piai (albe)	New status: Waiting on Author
2026-09-14 20:05:14	Alberto Piai (albe)	Added albe as reviewer
2026-08-10 14:19:30	CFbot	Patch needs rebase
2026-08-05 09:14:15	Álvaro Rodríguez (arodrgr)	Moved from CF PG20-1 to CF PG20-2
2026-06-15 12:52:22	Álvaro Rodríguez (arodrgr)	Attached mail thread CA+C_kKUS0QtMT1sHW067z=CAEDLOysAy6PiwvTx9QPBifHmR5w@mail.gmail.com
2026-06-15 12:52:22	Álvaro Rodríguez (arodrgr)	Created patch record