如何拆分列？

Question

我想看看我是否可以在spark数据帧中拆分列.像这样,

Select employee, split(department,"_") from Employee

Answer 1

试试这个:

SELECT explode(split(str, '_'))

或这个:

SELECT split(str, ' ')[0] as part1, split(str, ' ')[1] as part2