refactor: 更改子查询为join

src/main/resources/mapper/app/UserDao.xml

@@ -136,7 +136,6 @@
     </select>
 
      <select id="queryCourseOrder" resultType="com.sqx.modules.app.response.CourseOrderResponse">
-        select * from (
          select c.course_id  as courseId,sum(o.pay_money) as 'coursemoney' ,count(*) as 'coursenum',any_value(c.title) as 'coursename'
          from orders o
          left join course c on o.course_id=c.course_id
@@ -154,8 +153,7 @@
              and date_format(o.create_time,'%Y')=date_format(#{date},'%Y')
          </if>
      group by c.course_id
-         ) a
-     order by a.coursenum desc
+     order by coursenum desc
      </select>
      <select id="userMessage" resultType="int">
        select count(*) from tb_user t
@@ -335,4 +333,4 @@
     </update>
 
 
-</mapper>
+</mapper>