使用在前三个:分隔符之间分割值，

Splitting the values between the first 3 : delimiters,

select player_name
,substring_index(stats,':',1) as col_1
,substring_index(substring_index(substring_index(stats,':',3),':',-2),':',1) as col_2
,substring_index(substring_index(stats,':',3),':',-1) as col_3
from T1