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https://issues.apache.org/jira/browse/SPARK-3947?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15013707#comment-15013707
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Herman van Hovell commented on SPARK-3947:
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The problem with 1.5.2 you are having, is probably caused by conflicting
versions of spark on your classpath or a lib referencing a different version of
Spark.
I cannot reproduce your problem on 1.5.2 (local cluster) and the master (local
and local cluster).
> Support Scala/Java UDAF
> -----------------------
>
> Key: SPARK-3947
> URL: https://issues.apache.org/jira/browse/SPARK-3947
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Reporter: Pei-Lun Lee
> Assignee: Yin Huai
> Fix For: 1.5.0
>
> Attachments: spark-udaf.zip
>
>
> Right now only Hive UDAFs are supported. It would be nice to have UDAF
> similar to UDF through SQLContext.registerFunction.
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