t = s.beginTransaction();
count = s.createQuery( "update Zoo as z set z.name = z.name" ).executeUpdate();
assertEquals( "Incorrect discrim subclass update count", 2, count );
t.rollback();
t = s.beginTransaction();
// TODO : not so sure this should be allowed. Seems to me that if they specify an alias,
// property-refs should be required to be qualified.
count = s.createQuery( "update Zoo as z set name = name where id = :id" )