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https://issues.apache.org/jira/browse/HIVE-16589?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16013708#comment-16013708
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Teddy Choi commented on HIVE-16589:
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+1. Looks good to me. Waiting for Q file testing for PARTIAL2 and FINAL.
> Vectorization: Support PARTIAL2, FINAL, and COMPLETE GroupBy modes for AVG
> --------------------------------------------------------------------------
>
> Key: HIVE-16589
> URL: https://issues.apache.org/jira/browse/HIVE-16589
> Project: Hive
> Issue Type: Bug
> Components: Hive
> Reporter: Matt McCline
> Assignee: Matt McCline
> Priority: Critical
> Attachments: HIVE-16589.01.patch, HIVE-16589.02.patch,
> HIVE-16589.03.patch, HIVE-16589.04.patch, HIVE-16589.05.patch
>
>
> Add more classes we vectorize AVG in preparation for fully supporting AVG
> GroupBy. In particular, the PARTIAL2 and FINAL groupby modes that take in
> the AVG struct as input. And, add the COMPLETE mode that takes in the
> Original data and produces the Full Aggregation for completeness, so to speak.
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