题解 | #平均播放进度大于60%的视频类别#

select tag,
concat(round(avg(if(timestampdiff(second,start_time,end_time)<duration,timestampdiff(second,start_time,end_time)/duration*100,100)),2),'%') as avg_play_progress
from tb_user_video_log tu
left join tb_video_info tv using(video_id)
group by tag
having avg_play_progress>60
order by avg_play_progress desc