线上sql优化

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

@@ -860,7 +860,7 @@
         LEFT JOIN (
         SELECT DISTINCT cs.id_
         FROM course_schedule cs
-        WHERE cs.group_type_ = 'MUSIC' AND cs.class_date_ = DATE_FORMAT(NOW(), '%Y-%m-%d')
+        WHERE cs.group_type_ = 'MUSIC' AND cs.class_date_ = DATE_FORMAT(NOW(), '%Y-%m-%d') and cs.actual_teacher_id_ = #{teacherId}
         ) music_cs ON FIND_IN_SET(music_cs.id_, se.course_ids_)
         WHERE se.teacher_id_ = #{teacherId}
         AND se.expect_exercises_num_ > se.actual_exercises_num_
@@ -873,7 +873,7 @@
         LEFT JOIN (
         SELECT DISTINCT cs.id_
         FROM course_schedule cs
-        WHERE cs.group_type_ != 'MUSIC' AND cs.class_date_ <= DATE_FORMAT(NOW(), '%Y-%m-%d')
+        WHERE cs.group_type_ != 'MUSIC'  AND cs.class_date_ >= DATE_SUB(CURDATE(), INTERVAL 30 DAY) and cs.actual_teacher_id_ = #{teacherId}
         ) non_music_cs ON FIND_IN_SET(non_music_cs.id_, se.course_ids_)
         WHERE se.teacher_id_ = #{teacherId}
         AND se.expect_exercises_num_ > se.actual_exercises_num_