text: --[er]test operators subset with list(bit) and list(bit varying)
  create class tb1 ( a list(bit(8)));
  create class tb2 ( b list(bit VARYING(8)));
  
  insert into tb1 values({b'0001'});
  insert into tb1 values({b'0010'});
  insert into tb1 values({b'0100'});
  
  insert into tb2 values({b'0001'});
  insert into tb2 values({b'0010'});
  insert into tb2 values({b'0100'});
  insert into tb2 values({b'0000'});
  insert into tb2 values({b'0001'});
  
  select a,b from tb1, tb2 where a subset b order by 1,2;
  
  drop class tb1;
  drop class tb2;
  