选择表中的特定列

Question

我试图在以下列方式设置的dropwizard hibernate事务中使用sql查询仅检索几列感兴趣的内容

@Transactional
    public List<MyObject> getInteresting() {
        Session session = sessionFactory.openSession();
        Transaction tx = null;
        List<Service> services = null;
        try {
            tx = session.beginTransaction();
            String sql = "SELECT col1, col4, col7 FROM MyObject WHERE col3 = "someValue";
            SQLQuery query = session.createSQLQuery(sql);
            query.addEntity(MyObject.class);
            services = query.list();
            tx.commit();
        }
        catch(Exception e) {
            if (tx != null) tx.rollback();

        }
         finally {
             session.close();
         }
        return services;
    }

执行此查询会导致找不到colum2，col3，col5等错误。基本上它是我从查询中排除的列的错误