Message-ID: <1897c8dce7fd6974116c935a50270b33fac09461.camel@cybertec.at>
Subject: Re: Lc_collate & lc_type? whitespace and nbsp unique index...
From: Laurenz Albe <laurenz.albe@cybertec.at>
To: Ilmir Mulyukov <ilmir.mulyukov@gmail.com>,
	pgsql-admin@lists.postgresql.org
Date: Mon, 12 Jul 2021 07:29:14 +0200
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On Mon, 2021-07-12 at 11:24 +0600, Ilmir Mulyukov wrote:
> I have lc_collate and lc_ctype ru_RU.UTF-8.
> And have two similar value column in different rows.
> Different is that in one string have whitespace symbol, but another non breakable whitespace symbol.
> For example:
> Something(whitespace)wrong
> Something(non breakable space)wrong
> 
> And then when I try to create unique index I catch the error - can not insert duplicate key in row object.
> That means that the two rows are the same.
> 
> Are there any settings in postgresql that can differentiate this two symbols

I find that hard to believe.

Can you provide SQL statements that reproduce the problem?

Yours,
Laurenz Albe
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