Do not convert into upper case the 'id_column' attribute in 'acs_object_types' for group types. This attribute was upper case, both in oracle and postgres, causing a discrepancy with the column real name, found by the 'datamodel__acs_object_type_check' test case. The package upgrade fixes the already existing attributes in postgres.
Only convert table names to uppercase, during group type creation, on oracle. This was producing case mixed issues on postgres installations, where the table_name attribute on 'acs_object_types' was upppercase, while the real table name was lowercase, as detected by the 'datamodel__acs_object_type_check' test case.