1、添加教务老师字段

2、布置作业

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

@@ -435,7 +435,7 @@
         </where>
     </select>
     <select id="findGroupStudents" resultMap="ClassGroupStudentMapper">
-        SELECT * FROM class_group_student_mapper
+        SELECT * FROM class_group_student_mapper cgsm
         <where>
             <if test="groupType!=null">
                 AND cgsm.group_type_=#{groupType,typeHandler=com.ym.mec.common.dal.CustomEnumTypeHandler}