Row switch and column switch in column hive

https://www.cnblogs.com/zzhangyuhang/p/9791795.html

https://www.cnblogs.com/blogyuhan/p/9274784.html

Column switch: 
user_id order_id 
104 399 1,715,131 
104 399 2105395 
104 399 1758844 
104 399 981 085 
104 399 2444143 
104 399 1,458,638 
104 399 968 412 
104 400 1,609,001 
104 400 2986088 
104 400 1,795,054

User_id of the same line order_id Switch according comma: SELECT user_id, CONCAT_WS ( ',', collect_list (order_id)) AS ORDER_VALUE  from col_lie  Group by user_id

Line transfer columns:

user_id    order_value
104408    2909888,2662805,2922438,674972,2877863,190237

select user_id,order_value,order_id
from lie_col
lateral view explode(split(order_value,',')) num as order_id
limit 10;