SELECT ml.`name` as lessonName,ml.category,ml.deleted,ml.teacherName,ml.id,ml.liveId,ml.selected,mlc.channelId,p.viewNums,count(*) as totalNumfrom mlk_live_channel AS ml LEFT JOIN mlk_lesson_channel AS mlc ON mlc.lessonId = ml.idLEFT JOIN mlk_live_channel AS mcl ON mcl.id = mlc.channelId  LEFT JOIN (SELECT mpr.liveId,mpr.memberId,COUNT(mpr.liveId) as viewNums FROM mlk_payment_record AS mpr WHERE mpr.payType = 3 AND mpr.notify = 1 GROUP BY mpr.liveId) AS p ON p.liveId = mcl.liveIdWHERE ml.deleted = 0 AND ml.category = 1GROUP BY ml.idORDER BY ml.create_time