修改sql 语句

cooleshow-user/user-biz/src/main/resources/config/mybatis/CoursePlanMapper.xml

@@ -30,6 +30,7 @@
                b.end_time_
         from course_plan as a
                  left join course_schedule as b on a.course_group_id_ = b.course_group_id_
+                 AND a.class_num_ = b.class_num_
         where a.course_group_id_ = #{groupId}
         order by b.start_time_
     </select>