How can I add a collation language to a Postgres server?
Specifically, I want to create a new database with collation of English_United Kingdom.1252 but the only options are C, Posix and United States.
Even if I select United Kingdom as the locale when installing Postgres I still only have United States.
Am I missing something or is there a way to add the United Kingdom collation?
This is Postgres 9.6 on Windows server 2012. The server is Swedish, and my user login is set to UK.