hive-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Alexander Pivovarov (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-9858) Create cbrt (cube root) UDF
Date Wed, 04 Mar 2015 19:40:38 GMT
Alexander Pivovarov created HIVE-9858:
-----------------------------------------

             Summary: Create cbrt (cube root) UDF
                 Key: HIVE-9858
                 URL: https://issues.apache.org/jira/browse/HIVE-9858
             Project: Hive
          Issue Type: Improvement
            Reporter: Alexander Pivovarov


returns the cube root of a double value
cbrt(double a) : double

For example:
{code}
select cbrt(87860583272930481.0);
OK
444561.0
{code}

I noticed that Math.pow(a, 1.0/3.0) and hive power UDF return 444560.99999999965 for the example
above.
However Math.cbrt returns 444561.0
This is why we should have hive cbrt function in hive



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message