bug修改

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

@@ -127,7 +127,7 @@
 		DELETE FROM course_schedule_statistics WHERE course_schedule_id_ = #{courseScheduleId}
 	</delete>
 	<delete id="delWaitByCourseId">
-		SELECT * FROM course_schedule_statistics_wait WHERE course_schedule_id_ IN
+		DELETE FROM course_schedule_statistics_wait WHERE course_schedule_id_ IN
 		<foreach collection="courseIdList" item="courseId" separator="," open="(" close=")">
 			#{courseId}
 		</foreach>