Re: Windows default locale vs initdb

On Tue, Jul 19, 2022 at 12:59 AM Thomas Munro <thomas.munro@gmail.com>
wrote:

> Now that museum-grade Windows has been defenestrated, we are free to
> call GetUserDefaultLocaleName().  Here's a patch.
>

This LGTM.

>
> I think we should also convert to POSIX format when making the
> collname in your pg_import_system_collations() proposal, so that
> COLLATE "en_US" works (= a SQL identifier), but that's another
> thread[1].  I don't think we should do it in collcollate or
> datcollate, which is a string for the OS to interpret.
>

That thread has been split [1], but that is how the current version behaves.

>
> With my garbage collector hat on, I would like to rip out all of the
> support for traditional locale names, eventually.  Deleting kludgy
> code is easy and fun -- 0002 is a first swing at that -- but there
> remains an important unanswered question.  How should someone
> pg_upgrade a "English_Canada.1521" cluster if we now reject that name?
>  We'd need to do a conversion to "en-CA", or somehow tell the user to.
> Hmmmm.
>

Is there a safe way to do that in pg_upgrade or would we be forcing users
to pg_dump into the new cluster?

[1]
https://www.postgresql.org/message-id/flat/0050ec23-34d9-2765-9015-98c04f0e18ac%40postgrespro.ru

Regards,

Juan José Santamaría Flecha