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https://issues.apache.org/jira/browse/KYLIN-2657?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16119418#comment-16119418
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Shaofeng SHI commented on KYLIN-2657:
-------------------------------------

Roger, pls set fixed version so that we can know which release contains the fix.

> Cube merge TopN dictionary not found, cause NPE
> -----------------------------------------------
>
>                 Key: KYLIN-2657
>                 URL: https://issues.apache.org/jira/browse/KYLIN-2657
>             Project: Kylin
>          Issue Type: Bug
>          Components: Job Engine
>            Reporter: Roger Shi
>            Assignee: Roger Shi
>             Fix For: v2.1.0
>
>
> One TopN measure with two group-by columns, and both of them are in fact 
> table. If one cardinality is high and the other is low, merging Cube may fail 
> for NPE (dict not found).



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