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From "Todd Lipcon (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HIVE-1128) Let max/min handle complex types like struct
Date Wed, 03 Feb 2010 23:03:27 GMT

    [ https://issues.apache.org/jira/browse/HIVE-1128?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12829311#action_12829311
] 

Todd Lipcon commented on HIVE-1128:
-----------------------------------

This is clever, but I'd be surprised if a lot of non-programmer users would come up with this
on their own. Would it be helpful to also provide argmin and argmax functions? The statistics
community would probably appreciate the syntactic sugar.

> Let max/min handle complex types like struct
> --------------------------------------------
>
>                 Key: HIVE-1128
>                 URL: https://issues.apache.org/jira/browse/HIVE-1128
>             Project: Hadoop Hive
>          Issue Type: Improvement
>    Affects Versions: 0.6.0
>            Reporter: Zheng Shao
>
> A lot of users are interested in doing "arg_min" and "arg_max". Basically, return the
value of some other columns when one column's value is the max value.
> The following is an example usage when this is done:
> {code}
> SELECT department, max(struct(salary, employee_name))
> FROM compensations;
> {code}

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