教师端改版

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

@@ -714,7 +714,7 @@
             vg.payment_expire_date_,
             vg.courses_expire_date_,
             vg.single_class_minutes_,
-            vg.courses_start_date,
+            vg.courses_start_date courses_start_date_,
             IF(vg.online_classes_num_ IS NULL,0,vg.online_classes_num_) online_classes_num_,
             IF(vg.offline_classes_num_ IS NULL,0,vg.offline_classes_num_) offline_classes_num_,
             cg.total_class_times_,