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https://issues.apache.org/jira/browse/DRILL-3662?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14985836#comment-14985836
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ASF GitHub Bot commented on DRILL-3662:
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Github user adeneche commented on the pull request:
https://github.com/apache/drill/pull/222#issuecomment-153131868
Window operator has become increasingly complex. I already opened
[DRILL-3662](https://issues.apache.org/jira/browse/DRILL-3662) to refactor the
code.
> Improve DefaultFrameTemplate structure
> --------------------------------------
>
> Key: DRILL-3662
> URL: https://issues.apache.org/jira/browse/DRILL-3662
> Project: Apache Drill
> Issue Type: Improvement
> Components: Execution - Relational Operators
> Reporter: Deneche A. Hakim
> Assignee: Deneche A. Hakim
> Labels: window_function
> Fix For: 1.3.0
>
>
> as part of the review for DRILL-3536 two main comments were left aside and
> will be addressed by this JIRA:
> - refactor DefaultFrameTemplate into separate templates, each one handles a
> different "family" of window functions (e.g. aggregate vs ranking)
> - setupEvaluatePeer() should not be called more than once per incoming batch
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