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From: Robert Strötgen <robert@stroetgen.de>
To: pgsql-sql@postgresql.org
Subject: Re: German "umlaut insensitive" query
Date: Wed, 01 Sep 2004 17:17:09 +0200
Message-ID: <4135E7F5.4070002@stroetgen.de> (raw)
In-Reply-To: <4135DE5B.2000805@webde-ag.de>
References: <4135D647.4060203@stroetgen.de>
	<4135DE5B.2000805@webde-ag.de>

> select replace( replace( replace( replace( 'Test ä ö ü ß', 'ä','ae'), 
> 'ö','oe' ), 'ü','ue'), 'ß','ss' );

Thanks a lot. A wrote this into a user defined function with lower() 
around the source string, and it works. :-)

CREATE OR REPLACE FUNCTION public.unumlaut(varchar)
   RETURNS varchar AS
'select replace( replace( replace( replace( lower($1), \'ä\',\'ae\'), 
\'ö\',\'oe\' ), \'ü\',\'ue\'), \'ß\',\'ss\' );'
   LANGUAGE 'sql' IMMUTABLE STRICT;

Best regards,
Robert. :)

-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   Robert Strötgen
   mailto:robert@stroetgen.de              http://www.stroetgen.de/
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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