split_part(channel, '/', 1) AS channel1
, split_part(channel, '/', 2) AS channel2
, split_part(channel, '/', 3) AS channnel3
分完之后的结果 是这个样子
Q : 920888013
split_part(channel, '/', 1) AS channel1
, split_part(channel, '/', 2) AS channel2
, split_part(channel, '/', 3) AS channnel3
分完之后的结果 是这个样子
