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From: Karsten Hilbert <Karsten.Hilbert@gmx.net>
To: pgsql-general@postgresql.org
Subject: Re: Case Sensitivity
Date: Thu, 13 Jan 2011 16:25:28 +0100
Message-ID: <20110113152528.218550@gmx.net> (raw)
In-Reply-To: <AANLkTi=mk9n3Szka_hy-wc8r8iBM-mHmQRmo9WPQ-hd1@mail.gmail.com>
References: <D869A69BDB32184981F31AB9349C8C9B188D1E@exch-be34.exchange.local>
	<AANLkTi=mk9n3Szka_hy-wc8r8iBM-mHmQRmo9WPQ-hd1@mail.gmail.com>

> you should to use a citext datatype
> 
> http://www.postgresql.org/docs/9.0/interactive/citext.html

Or:

- use a functional index with lower() to ensure uniqueness
- use a BEFORE trigger to lower() the inserted data

Karsten

-- 
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