MySQL Query : select *,(select count(*) from hfresult a where a.id='sndgjsgzx/20210407063839' and a.speed>=hfresult.speed) as mc from hfresult where id = 'sndgjsgzx/20210407063839' and (info='' or info is null) order by speed desc limit 0,100
MySQL Error : Unknown column 'info' in 'where clause'
MySQL Errno : 1054
Message : MySQL Query Error