We have an OBJECT type in our integration test tables, e.g.

CREATE TYPE u_address_type AS OBJECT (...);
CREATE TABLE t_author (
  ..
  address u_address_type
);

Oracle implements this usnig computed columns named SYS_NC00007$, for example. These columns are removed by default in OracleTableDefinition via a JOIN between ALL_TAB_COLS (which contains them) and ALL_COL_COMMENTS (which doesn't contain them).

But this filtering join isn't being done in OracleDatabase::initRecordTypeDefinition18 for %ROWTYPE UDTs. The columns can be removed with <includeInvisibleColumns>false</includeInvisibleColumns>, but the default is true, so users will get weird objects in these cases. It probably doesn't happen often, as OBJECT types in tables are rare, but still, it's annoying.