|  | @@ -635,7 +635,7 @@
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				|  |  |  	</select>
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				|  |  |  	<select id="getStudentTrainOverViewList"
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				|  |  |  			resultType="com.yonge.cooleshow.biz.dal.wrapper.TeacherIndexWrapper$StudentPracticeSummaryDto">
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				|  |  | -		select su.username_ studentName,sb.name_ subjectName,SUM(smcr.play_time_) totalPracticeTime,
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				|  |  | +		select su.username_ studentName,su.avatar_ avatar,sb.name_ subjectName,SUM(smcr.play_time_) totalPracticeTime,
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				|  |  |  		       COUNT(DISTINCT DATE_FORMAT(smcr.create_time_, '%Y-%m-%d')) practiceDays,
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				|  |  |  		       SUM(smcr.play_time_) / COUNT(DISTINCT DATE_FORMAT(smcr.create_time_, '%Y-%m-%d')) averagePracticeTime
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				|  |  |  		from sys_music_compare_record smcr
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