Peter Pilsl <pilsl@goldfisch.at> writes:
> If I perform a select lower() on uppercased german umlauts, these wont be
> converted to lowercase.
AFAIK this should work if (a) the system was built with --enable-locale
and (b) you are running it in an appropriate locale setting. The
SQL lower() function just invokes the C library's tolower() conversion
routine, so if it doesn't work your beef is with tolower() ...
regards, tom lane