select count(*) as a from user group by class order by a desc
我用hibernate做的HQL
select c.count(c),c.class from User c group by c.class
session.createQuery(sql).list()却报错了
javax.servlet.ServletException: No data type for node: org.hibernate.hql.ast.MethodNode
+-[METHOD_CALL] MethodNode: '('
| \-[METHOD_NAME] SqlNode: 'exprList'
| \-[ALIAS_REF] IdentNode: 'user0_.userid' {alias=c, className=com.fuqi.dao.pojo.user, tableAlias=user0_}
请问这是怎么回事啊？急待。。。