Hive: Sum over a specified group (HiveQL)

Question

I have a table:

key    product_code    cost
1      UK              20
1      US              10
1      EU              5
2      UK              3
2      EU               


        

Answer 1

Similar to @VB_ answer, use the BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING statement.

The HiveQL query is therefore:

SELECT key, product_code,
SUM(costs) OVER (PARTITION BY key ORDER BY key ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING)
FROM test;