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https://issues.apache.org/jira/browse/DRILL-4657?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15271783#comment-15271783
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Deneche A. Hakim commented on DRILL-4657:
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[~amansinha100] can you please review ? Thanks
> Rank() will return wrong results if a frame of data is too big (more than 2
> batches)
> ------------------------------------------------------------------------------------
>
> Key: DRILL-4657
> URL: https://issues.apache.org/jira/browse/DRILL-4657
> Project: Apache Drill
> Issue Type: Bug
> Components: Execution - Relational Operators
> Affects Versions: 1.3.0
> Reporter: Deneche A. Hakim
> Assignee: Aman Sinha
> Priority: Critical
> Fix For: 1.7.0
>
>
> When you run a query with RANK, and one particular frame is too long to fit
> in 2 batches of data, you will get wrong result.
> I was able to reproduce the issue in a unit test, thanks to the fact that we
> can control the size of the batches processed by the window operator. I will
> post a fix soon along with the unit test
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