如何拆分列

Question

我想看看是否可以在spark数据帧中拆分一列。像这样，

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

Answer 1

试试这个：

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

或者这个：

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