HIVE查询数组总和

Question

我有一个查询如下。 Select split(Salary, '\|') as salaryEmp from tableA它工作正常，并为我提供了一个数组字符串["1089","1078"]。

我想添加此数组字符串的值。我无法将其转换为整数并将它们相加。可以为此建议一种合适的方式。

Answer 1

使用explode() + lateral view：

select sum(cast(salary as int)) sum_salry from
 (
 select split('1089|1078', '\\|') SalaryArray 
 ) s lateral view explode (SalaryArray) a as Salary;

OK
2167

Answer 2

select  sum(e.col) as sum_Salary
from    salaryEmp lateral view explode (split(Salary,'\\|')) e

+------------+
| sum_salary |
+------------+
|       2167 |
+------------+