|  | @@ -522,8 +522,8 @@
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				|  |  |      <select id="countStudyNum" resultType="java.util.Map">
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				|  |  |          SELECT cgsm.class_group_id_ 'key',COUNT(cgsm.user_id_) 'value' FROM class_group_student_mapper cgsm
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				|  |  | -        LEFT JOIN student_registration sr ON (sr.user_id_ = cgsm.user_id_ AND sr.music_group_id_ = cgsm.music_group_id_)
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				|  |  | -        WHERE FIND_IN_SET(cgsm.class_group_id_,#{classGroupIds}) AND cgsm.status_ != 'QUIT' AND sr.music_group_status_ != 'QUIT' GROUP BY cgsm.class_group_id_
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				|  |  | +        WHERE FIND_IN_SET(cgsm.class_group_id_,#{classGroupIds}) AND cgsm.status_ != 'QUIT'
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				|  |  | +        GROUP BY cgsm.class_group_id_
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				|  |  |      </select>
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				|  |  |  
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				|  |  |      <select id="countQuitNum" resultType="java.util.Map">
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