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From: Regina Obe <[email protected]>
To: 'Tom Lane' <[email protected]>
Cc: 'Peter Eisentraut' <[email protected]>
Cc: 'Sandro Santilli' <[email protected]>
Cc: [email protected]
Cc: 'Jeff Davis' <[email protected]>
Subject: RE: Order changes in PG16 since ICU introduction
Date: Fri, 21 Apr 2023 13:56:14 -0400
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>
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> > CREATE DATABASE test TEMPLATE=template0 ENCODING = 'UTF8'
> LC_COLLATE = 'C'
> > LC_CTYPE = 'C';
> 
> As has been pointed out already, setting LC_COLLATE/LC_CTYPE is
> meaningless when the locale provider is ICU.  You need to look at what ICU
> locale is being chosen, or force it with LOCALE = 'C'.
> 
> 			regards, tom lane

Okay got it was on IRC with RhodiumToad and he suggested:

CREATE DATABASE test2 TEMPLATE=template0 ENCODING = 'UTF8' LC_COLLATE = 'C'
LC_CTYPE = 'C' ICU_LOCALE='C';

Which gives expected result:
SELECT '+'  <  '-'  ;  -- true

 but gives me a notice:
NOTICE:  using standard form "en-US-u-va-posix" for locale "C"

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