|  | @@ -1502,7 +1502,9 @@
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				|  |  |          SELECT GROUP_CONCAT(DISTINCT su.username_) FROM student_registration sr
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				|  |  |          LEFT JOIN sys_user su ON su.id_ = sr.user_id_
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				|  |  |          WHERE sr.music_group_id_ = #{musicGroupId} AND sr.music_group_status_ = 'NORMAL'
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				|  |  | -        AND sr.user_id_ NOT IN (SELECT DISTINCT user_id_ FROM class_group_student_mapper WHERE music_group_id_ = #{musicGroupId} AND group_type_ = 'MUSIC' AND status_ != 'QUIT')
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				|  |  | +        AND sr.user_id_ NOT IN (SELECT DISTINCT cgsm.user_id_ FROM class_group_student_mapper cgsm
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				|  |  | +        LEFT JOIN class_group cg ON cg.id_ = cgsm.class_group_id_
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				|  |  | +        WHERE cgsm.music_group_id_ = #{musicGroupId} AND cgsm.group_type_ = 'MUSIC' AND cgsm.status_ != 'QUIT' AND cg.type_ IN ('SNAP','NORMAL','MIX'))
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				|  |  |      </select>
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				|  |  |      <select id="checkHasMemberGroup" resultType="java.lang.Boolean">
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				|  |  |          SELECT COUNT(sr.id_) > 0 FROM student_registration sr
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