text: create class test_class (date_col date, time_col time, timestamp_col timestamp, datetime_col datetimeltz);
  
  insert into test_class(datetime_col) values ('01/02/2990');
  insert into test_class(datetime_col) values ('01/01/1970 00:00:00');
  
  select * from test_class order by 4;
  
  drop class test_class;