fix:视频课排序

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

@@ -619,7 +619,7 @@
         LEFT JOIN `subject` s ON g.lesson_subject_=s.id_
         LEFT JOIN (SELECT video_lesson_group_id_ ,COUNT(1) AS count_ FROM video_lesson_purchase_record WHERE order_status_='PAID' GROUP BY video_lesson_group_id_) r ON g.id_= r.video_lesson_group_id_
         WHERE u.del_flag_ = 0 and g.audit_status_='PASS' and g.shelves_flag_ = 1 and #{appAuditVersion} = g.audit_version_
-        ORDER BY g.create_time_ DESC LIMIT 4
+        ORDER BY buyCount DESC LIMIT 4
     </select>
     <select id="selectRecentCourses" resultType="com.yonge.cooleshow.biz.dal.vo.StudentHomePage$RecentCourses">
         SELECT