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Posted to issues@spark.apache.org by "Takeshi Yamamuro (JIRA)" <ji...@apache.org> on 2017/03/25 05:43:41 UTC

[jira] [Commented] (SPARK-6424) Support user-defined aggregators in AggregateFunction

    [ https://issues.apache.org/jira/browse/SPARK-6424?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15941589#comment-15941589 ] 

Takeshi Yamamuro commented on SPARK-6424:
-----------------------------------------

We already have fixed the Aggregation improvements in SPARK-4366, so I'll close this.

> Support user-defined aggregators in AggregateFunction
> -----------------------------------------------------
>
>                 Key: SPARK-6424
>                 URL: https://issues.apache.org/jira/browse/SPARK-6424
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>            Reporter: Takeshi Yamamuro
>
> Add a new interface to implement user-defined aggregators in AggregateExpression.
> This enables third-parties to easily implement various operations on DataFrame.



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