text: --test <= operator with int and date type
  create class tb ( 
  	id int auto_increment primary key,
  	col1 int
  );
  
  insert into tb (col1) values(-32768);
  insert into tb (col1) values(-10);
  insert into tb (col1) values(10);
  
  select * from tb where col1 <= to_date('5/5/2008');
  
  drop table tb;
  
  