Re: Order changes in PG16 since ICU introduction

On Fri, Apr 21, 2023 at 11:48:51AM -0400, Tom Lane wrote:
> "Regina Obe" <lr(at)pcorp(dot)us> writes:
>
> > https://trac.osgeo.org/postgis/ticket/5375
>
> If they actually are using locale C, I would say this is a bug.
> That should designate memcmp sorting and nothing else.

Sounds like a bug to me. This is happening with a PostgreSQL cluster
created and served by a build of commit c04c6c5d6f :

=# select version();
PostgreSQL 16devel on x86_64-pc-linux-gnu, compiled by gcc (Ubuntu 11.3.0-1ubuntu1~22.04) 11.3.0, 64-bit
=# show lc_collate;
C
=# select '+' < '-';
f
=# select '+' < '-' collate "C";
t

I don't know if it should matter but also:

=# show lc_messages;
C

--strk;