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https://issues.apache.org/jira/browse/DRILL-3345?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Deneche A. Hakim closed DRILL-3345.
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Resolution: Fixed
> TestWindowFrame fails to properly check cases involving multiple batches
> ------------------------------------------------------------------------
>
> Key: DRILL-3345
> URL: https://issues.apache.org/jira/browse/DRILL-3345
> Project: Apache Drill
> Issue Type: Bug
> Components: Execution - Relational Operators
> Affects Versions: 1.1.0
> Reporter: Deneche A. Hakim
> Assignee: Deneche A. Hakim
> Priority: Critical
> Labels: window_function
> Fix For: 1.1.0
>
> Attachments: DRILL-3345.1.patch.txt, DRILL-3345.2.patch.txt
>
>
> as part of adding unit tests to TestWindowFrame, I added a debug option to
> MSorter to force the batches passed downstream to be of a specific size. This
> was supposed to help test edge cases involving multiple data batches while
> controlling precisely when a partition and/or window frame ends in a batch.
> Turns out the change to MSorter was incomplete and all cases end up
> processing one single big batch of data.
> The purpose of this JIRA issue is to fix this, add some check to detect when
> the batches are no longer split correctly and make sure all unit tests are
> passing.
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