update

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

@@ -522,6 +522,7 @@
         SELECT COUNT(sr.id_)
         FROM student_registration sr
         LEFT JOIN sys_user su ON sr.user_id_ = su.id_
+        LEFT JOIN student st ON st.user_id_ = su.id_
         LEFT JOIN (
         SELECT v.student_id_, COUNT(*) num
         FROM student_visit v