[PATCH v1] Fix tab completion for DROP INDEX CONCURRENTLY

From: Sho Ito <i(dot)sho(dot)0628(at)gmail(dot)com>
To: pgsql-hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: [PATCH v1] Fix tab completion for DROP INDEX CONCURRENTLY
Date: 2026-10-19 03:02:17
Message-ID: CAG7L5+7KXgvJUGCGXzyQrt7UysC9iytaYzx-7YyQTFYXjHVTWQ@mail.gmail.com
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Hi,

psql currently offers `CASCADE` after `DROP INDEX CONCURRENTLY
<index_name>`,
although the backend rejects that combination [1].

The attached patch limits completion to `RESTRICT` for concurrent index
drops. Ordinary `DROP INDEX` continues to offer both `CASCADE` and
`RESTRICT`.

[1]
https://github.com/postgres/postgres/blob/3138f248cd3de43dd0f96760fc666152ea8a5c37/src/backend/commands/tablecmds.c#L1590-L1593

Kind regards,
Sho Ito

--
=======================================
*Sho Ito (Sean)*

E-mail: i(dot)sho(dot)0628(at)gmail(dot)com
LinkedIn: *https://www.linkedin.com/in/sho-ito-0628/
<https://www.linkedin.com/in/sho-ito-0628/>*
GitHub: https://github.com/sean0628/
=======================================

Attachment Content-Type Size
v1-0001-Fix-tab-completion-for-DROP-INDEX-CONCURRENTLY.patch application/octet-stream 1.0 KB

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