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Posted to issues@spark.apache.org by "Cheng Hao (JIRA)" <ji...@apache.org> on 2015/01/06 15:02:34 UTC

[jira] [Commented] (SPARK-4366) Aggregation Optimization

    [ https://issues.apache.org/jira/browse/SPARK-4366?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14266124#comment-14266124 ] 

Cheng Hao commented on SPARK-4366:
----------------------------------

[~marmbrus] I've uploaded an draft design doc for the UDAF interface, let me know if you have any concerns or confusing.

> Aggregation Optimization
> ------------------------
>
>                 Key: SPARK-4366
>                 URL: https://issues.apache.org/jira/browse/SPARK-4366
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>            Reporter: Cheng Hao
>         Attachments: aggregatefunction_v1.pdf
>
>
> This improvement actually includes couple of sub tasks.



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