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CASE cs.group_type_ WHEN 'MUSIC' THEN mg.educational_teacher_id_ WHEN 'VIP' THEN vg.educational_teacher_id_ WHEN 'PRACTICE' THEN pg.educational_teacher_id_ END deal_user_id_
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CASE cs.group_type_ WHEN 'MUSIC' THEN mg.educational_teacher_id_ WHEN 'VIP' THEN vg.educational_teacher_id_ WHEN 'PRACTICE' THEN pg.educational_teacher_id_ END deal_user_id_
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