One solution:
select replace( replace( replace( replace( 'Test ä ö ü ß', 'ä','ae'), 'ö','oe' ), 'ü','ue'), 'ß','ss' );
replace
------------------ Test ae oe ue ss
If you also have upcase-characters, you have to extend the statement.
Robert Strötgen schrieb:
> I want to query words with German "umlauts" (special characters) with
> and without normalization. I want to find "grün" (green) written
> "gruen" as well.
>
> Using "LIKE" with locale de_DE.iso88591 or .utf-8 does not help (Locale
> support should affect "LIKE",
> http://www.postgresql.org/docs/7.3/static/charset.html#AEN21761).
>
> Any Idea how to solve this? Define a special Operator? Has anyone
> already done this before?
>
> I am using PostgreSQL 7.3.2 on Linux.
>
> TIA,
> Robert Strötgen. :)
>