The PG is 9.4 on Linux, the DataBase encoding is:ENCODING = 'UTF8'LC_COLLATE = 'hu_HU.UTF-8'LC_CTYPE = 'hu_HU.UTF-8'
The collection rules for hu_HU.UTF-8 probably pretend symbols don't exist, this is not uncommon. You probably need to use 'C' collation.
David J.