hivesql-成对提取数据

表结构

建表

create table t11
(
    a string,
    b string
);

insert into t11
values ('A/B', '1/3'),
       ('B/C/D', '4/5/2');

1）成对提取数字并一一对应

思路

lateral view posexplode()展开多列

输出结果

SQL

select
    a_val,
    b_val
from (select
             a,
             b,
             a_index,
             a_val,
             b_index,
             b_val
      from t11
               lateral view posexplode(split(a, '/')) t as a_index, a_val
               lateral view posexplode(split(b, '/')) t as b_index, b_val) tmp
where a_index = b_index;