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From: Peter Eisentraut <peter.eisentraut@2ndquadrant.com>
To: Andreas Karlsson <andreas@proxel.se>
To: pgsql-hackers <pgsql-hackers@postgresql.org>
Subject: Re: insensitive collations
Date: Wed, 16 Jan 2019 17:22:29 +0100
Message-ID: <831ffb67-fa8b-eb49-d2fe-69e937ed224a@2ndquadrant.com> (raw)
In-Reply-To: <da340c4b-24d0-8ff1-54d2-5b023eb81e3c@proxel.se>
References: <1ccc668f-4cbc-0bef-af67-450b47cdfee7@2ndquadrant.com>
	<cdd0ed2e-1d98-6fc4-07f1-23f19f53b201@2ndquadrant.com>
	<9fd63f66-fb85-9bb9-2499-28dac918161a@proxel.se>
	<3e5bfc15-61e4-ecdc-81b2-55d036717a10@2ndquadrant.com>
	<da340c4b-24d0-8ff1-54d2-5b023eb81e3c@proxel.se>

On 14/01/2019 15:37, Andreas Karlsson wrote:
>> Nondeterministic collations do address this by allowing canonically
>> equivalent code point sequences to compare as equal.  You still need a
>> collation implementation that actually does compare them as equal; ICU
>> does this, glibc does not AFAICT.
> Ah, right! You could use -ks-identic[1] for this.

That's the default.

-- 
Peter Eisentraut              http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services




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