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,
                    1,
                    timestampdiff(second,start_time,end_time)/duration
                )
            )*100
        ,2)
    ,'%') avg_play_progress
from tb_video_info t1
inner join tb_user_video_log t2
on t1.video_id = t2.video_id
group by tag
having avg(
    if(
        timestampdiff(second,start_time,end_time) >= duration,
        1,
        timestampdiff(second,start_time,end_time) / duration
    )
) > 0.6
order by avg_play_progress desc;