On Wed, 2022-05-25 at 09:19 +0300, Dennis wrote: > How to make configuration my postgresql database use a case insensitive collation? You'd have to define such a collation with CREATE COLLATION and you have to use it in column definitions explicitly, since such a collation cannot be used as database collation. Yours, Laurenz Albe -- Cybertec | https://www.cybertec-postgresql.com