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https://issues.apache.org/jira/browse/KYLIN-3322?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16779016#comment-16779016
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ASF subversion and git services commented on KYLIN-3322:
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Commit 8e16be631ed74a2b31b5936d1266641ed3be98c8 in kylin's branch
refs/heads/document from GinaZhai
[ https://gitbox.apache.org/repos/asf?p=kylin.git;h=8e16be6 ]
KYLIN-3322 TopN requires a SUM to work
> TopN requires a SUM to work
> ---------------------------
>
> Key: KYLIN-3322
> URL: https://issues.apache.org/jira/browse/KYLIN-3322
> Project: Kylin
> Issue Type: Bug
> Components: Measure - TopN
> Reporter: liyang
> Assignee: Na Zhai
> Priority: Major
>
> Currently if user creates a measure of TopN seller by sum of price, it is
> required that user also creates a measure of SUM(price). Otherwise, NPE will
> be thrown at query time.
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