update

mec-biz/src/main/resources/config/mybatis/ClassGroupMapper.xml

@@ -1537,6 +1537,6 @@
     <select id="countTeacherByMusicGroupId" resultMap="Mapper">
 		select cg.id_ courseScheduleId_,cg.name_ key_,GROUP_CONCAT(u.real_name_) value_ from class_group cg LEFT JOIN class_group_teacher_mapper cgtm on cg.id_ = cgtm.class_group_id_
 		LEFT JOIN sys_user u on u.id_ = cgtm.user_id_
-		where cg.del_flag_ = 0 and cg.group_type_ = 'MUSIC' and cg.music_group_id_ = #{musicGroupId} order by cg.type_  group by cg.id_
+		where cg.del_flag_ = 0 and cg.group_type_ = 'MUSIC' and cg.music_group_id_ = #{musicGroupId}  group by cg.id_ order by cg.type_
     </select>
 </mapper>