这个函数相当于拆开行变成列。
可以理解为行转列。
select id,order_label from table_bx lateral view explode(split(work_order_label, ‘,‘)) order_label as order_label
源表：
| Array<int> pageid_list | Array<string> adid_list |
|---|---|
| [1, 2, 3] | ["a", "b", "c"] |
| [3, 4] | ["c", "d"] |
结果为:
原文：https://www.cnblogs.com/sakura3/p/12022695.html