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Posted to dev@hive.apache.org by "Lefty Leverenz (JIRA)" <ji...@apache.org> on 2014/09/10 08:58:29 UTC

[jira] [Updated] (HIVE-952) Support analytic NTILE function

     [ https://issues.apache.org/jira/browse/HIVE-952?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Lefty Leverenz updated HIVE-952:
--------------------------------
    Fix Version/s: 0.11.0

> Support analytic NTILE function
> -------------------------------
>
>                 Key: HIVE-952
>                 URL: https://issues.apache.org/jira/browse/HIVE-952
>             Project: Hive
>          Issue Type: New Feature
>          Components: OLAP, Query Processor, UDF
>            Reporter: Carl Steinbach
>             Fix For: 0.11.0
>
>
> The NTILE function divides a set of ordered rows into equally sized buckets and assigns a bucket number to each row.
> Useful for calculating tertiles, quartiles, quintiles, etc.
> Example:
> {code:sql}
> SELECT last_name, salary,
> NTILE(4) OVER (ORDER BY salary DESC) AS quartile
> FROM employees
> WHERE department_id = 100;
> {code}



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