|  | @@ -457,6 +457,7 @@
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				|  |  |              u.avatar_ AS cover,
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				|  |  |              g.subject_id_ AS subjectId,
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				|  |  |              b.name_ AS subjectName,
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				|  |  | +            ig.id_ AS imGroupId,
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				|  |  |              (r.student_replied_ IS NOT NULL) AS studentReplied,
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				|  |  |              (r.teacher_replied_ IS NOT NULL) AS teacherReplied
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				|  |  |          FROM course_schedule s
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				|  | @@ -464,6 +465,7 @@
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				|  |  |          LEFT JOIN course_group g ON s.course_group_id_ = g.id_
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				|  |  |          LEFT JOIN `subject` b ON g.subject_id_ = b.id_
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				|  |  |          LEFT JOIN course_schedule_replied r ON s.id_ = r.course_schedule_id_
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				|  |  | +        LEFT JOIN im_group ig ON ig.course_group_id_ = g.id_
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				|  |  |          WHERE s.lock_=0
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				|  |  |          AND s.status_ IN ('ING','NOT_START','COMPLETE')
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				|  |  |          AND s.id_ IN
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				|  | @@ -484,12 +486,14 @@
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				|  |  |              g.background_pic_ AS cover,
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				|  |  |              g.subject_id_ AS subjectId,
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				|  |  |              sb.name_ AS subjectName,
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				|  |  | +            ig.id_ AS imGroupId,
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				|  |  |              (r.student_replied_ IS NOT NULL) AS studentReplied,
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				|  |  |              (r.teacher_replied_ IS NOT NULL) AS teacherReplied
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				|  |  |          FROM course_schedule s
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				|  |  |          LEFT JOIN course_group g ON s.course_group_id_ = g.id_
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				|  |  |          LEFT JOIN `subject` sb ON g.subject_id_=sb.id_
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				|  |  |          LEFT JOIN course_schedule_replied r ON s.id_ = r.course_schedule_id_
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				|  |  | +        LEFT JOIN im_group ig ON ig.course_group_id_ = g.id_
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				|  |  |          WHERE s.lock_=0
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				|  |  |          AND s.status_ IN ('ING','NOT_START','COMPLETE')
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				|  |  |          AND s.id_ IN
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