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https://issues.apache.org/jira/browse/HIVE-15409?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15753764#comment-15753764
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Lefty Leverenz commented on HIVE-15409:
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Doc note: This should be documented in the wiki.
* [Enhanced Aggregation, Cube, Grouping and Rollup |
https://cwiki.apache.org/confluence/display/Hive/Enhanced+Aggregation%2C+Cube%2C+Grouping+and+Rollup]
> Add support for GROUPING function with grouping sets
> ----------------------------------------------------
>
> Key: HIVE-15409
> URL: https://issues.apache.org/jira/browse/HIVE-15409
> Project: Hive
> Issue Type: New Feature
> Affects Versions: 2.2.0
> Reporter: Jesus Camacho Rodriguez
> Assignee: Jesus Camacho Rodriguez
> Labels: TODOC2.2
> Fix For: 2.2.0
>
> Attachments: HIVE-15409.01.patch, HIVE-15409.02.patch,
> HIVE-15409.patch
>
>
> The _grouping(col_expr)_ function indicates whether a given column is
> aggregated in each row.
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