Re: fixes for the Danish locale

On Thu, Jul 21, 2016 at 11:49 AM, Jeff Janes <jeff.janes@gmail.com> wrote:
> On Thu, Jul 21, 2016 at 9:44 AM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
>> Jeff Janes <jeff.janes@gmail.com> writes:
>>> In Danish, the sequence 'aa' is sometimes treated as a single letter
>>> which collates after 'z'.
>>> Some regression tests got into 9.5, and are still in 9.6beta3, which
>>> fail due to assuming they know how things will sort or compare.
>>
>> Confirmed here.  Will deal with it, but I wonder why we have no buildfarm
>> members covering this ...
>>
>
> My CentOS box came with 735 locales installed, so testing all of them
> on a regular basis would be quite a task.  And it doesn't help that
> many of them seem to be very slow compared to C locale.
>
> I guess the good news is that nothing I tested which was working in
> 9.5 is broken in 9.6, but several things which were working in 9.4 did
> get broken in 9.5 and still are in 9.6.
>
> The Danish fix will probably also fix the (very large) Norwegian family.
>
> The Welsh (cy_GB) apparently put 'dd' after 'f', which breaks row
> level security in much the same way as 'aa' does.
>
> I think that that will cover all of the ones that were working in 9.4.

The attached patch fixes regression tests for Welsh (cy_GB), needed in
9.5 and 9.6.

Cheers,

Jeff