On 28.05.22 20:16, Shay Rojansky wrote: > 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.
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I recommend David Deutsch's <<The Beginning of Infinity>>