Re: BUG #17220: ALTER INDEX ALTER COLUMN SET (..) with an optionless opclass makes index and table unusable

Vik Fearing <vik@postgresfriends.org>

From: Vik Fearing <vik@postgresfriends.org>
To: postgresql@zr40.nl, Alexander Korotkov <aekorotkov@gmail.com>
Cc: pgsql-bugs@lists.postgresql.org
Date: 2021-10-11T18:03:13Z
Lists: pgsql-bugs, pgsql-hackers

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Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →
  1. Block ALTER INDEX/TABLE index_name ALTER COLUMN colname SET (options)

On 10/11/21 5:25 PM, PG Bug reporting form wrote:
> 
> User 'musttu' on IRC reported the following bug: After running "ALTER INDEX
> some_idx ALTER COLUMN expr SET (n_distinct=100)", the index and table become
> unusable. All further statements involving the table result in: "ERROR: 
> operator class text_ops has no options".
> 
> They reported this on the RDS version of 13.3, but I've been able to
> reproduce this on Debian with 13.4 and 14.0. It does not reproduce on 12.8,
> all statements succeed on that version.

This was broken by 911e702077 (Implement operator class parameters).
-- 
Vik Fearing