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https://issues.apache.org/jira/browse/TRAFODION-2312?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15612157#comment-15612157
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ASF GitHub Bot commented on TRAFODION-2312:
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Github user asfgit closed the pull request at:
https://github.com/apache/incubator-trafodion/pull/787
> Add support for GROUPING function for rollup aggregation
> --------------------------------------------------------
>
> Key: TRAFODION-2312
> URL: https://issues.apache.org/jira/browse/TRAFODION-2312
> Project: Apache Trafodion
> Issue Type: New Feature
> Reporter: Anoop Sharma
> Assignee: Anoop Sharma
> Priority: Minor
>
> GROUP BY ROLLUP aggregation generates and returns a null value to
> represent a rollup group.
> See jira trafodion-2246 for ROLLUP details.
> This current jira is an extension of it.
> GROUPING function is used to determine whether a returned null value
> is due to a rollup group.
> It returns '1' if a null value is a rollup null and '0' otherwise (for
> non-null
> or data null values).
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