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https://issues.apache.org/jira/browse/HADOOP-1658?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Edward Yoon updated HADOOP-1658:
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    Comment: was deleted

> Aggregate Functions
> -------------------
>
>                 Key: HADOOP-1658
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1658
>             Project: Hadoop
>          Issue Type: Sub-task
>          Components: contrib/hbase
>         Environment: All Environments 
>            Reporter: Edward Yoon
>            Priority: Minor
>             Fix For: 0.15.0
>
>
> Aggregation functions on collections of data values: average, minimum, 
> maximum, sum, count.
> Group rows by value of an columnfamily and apply aggregate function 
> independently to each group of rows.
>  * <Grouping columnfamilies>  ƒ ~function_list~ (Relation)

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