On 10/13/21 2:06 AM, Bossart, Nathan wrote: > On 10/11/21, 11:03 AM, "Vik Fearing" <v...@postgresfriends.org> wrote: >> 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). > > Moving to pgsql-hackers@. > > At first glance, it looks like ALTER INDEX .. ALTER COLUMN ... SET > uses the wrong validation function. I've attached a patch where I've > attempted to fix that and added some tests.
Ah, thank you. I was in the (slow) process of writing basically this exact patch. So I'll stop now and endorse yours. -- Vik Fearing
