Re: CREATE COLLATION must be specified

> > CREATE COLLATION some_collation (LC_COLLATE = 'en-u-ks-primary',
> >      LC_CTYPE = 'en-u-ks-primary',
> >      PROVIDER = icu,
> >      DETERMINISTIC = False
> > );
> >
> > This works on PG14, but on PG15 it errors with 'parameter "locale" must
> > be specified'.
> >
> > I wanted to make sure this breaking change is intentional (it doesn't
> > seem documented in the release notes or in the docs for CREATE COLLATION).
>
> This change is intentional, but the documentation could be improved.

I think this is still missing in the PG15 release notes (https://www.postgresql.org/docs/15/release-15.html).