Re: Windows default locale vs initdb

On Mon, Apr 19, 2021 at 05:42:51PM +1200, Thomas Munro wrote:
> Currently initdb sets up template databases with old-style Windows
> locale names reported by the OS, and they seem to have caused us quite
> a few problems over the years:
> 
> db29620d "Work around Windows locale name with non-ASCII character."
> aa1d2fc5 "Another attempt at fixing Windows Norwegian locale."
> db477b69 "Deal with yet another issue related to "Norwegian (Bokmål)"..."
> 9f12a3b9 "Tolerate version lookup failure for old style Windows locale..."

> I suppose that was the only form available at the time the code was
> written, so there was no choice.

Right.

> The question we asked ourselves
> multiple times in the other thread was how we're supposed to get to
> the modern BCP 47 form when creating the template databases.  It looks
> like one possibility, since Vista, is to call
> GetUserDefaultLocaleName()[2]

> No patch, but I wondered if any Windows hackers have any feedback on
> relative sanity of trying to fix all these problems this way.

Sounds reasonable.  If PostgreSQL v15 would otherwise run on Windows Server
2003 R2, this is a good time to let that support end.