=?ISO-8859-1?Q?=22K=F6nig=2C_Frank=22?= <Frank.Koenig@rossmann.de> writes:
> uppercase umlauts are not converted.
Did you run initdb with the correct LANG environment?
To check, run contrib/pg_controldata and see what it says about
LC_COLLATE and LC_CTYPE.
regards, tom lane