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https://issues.apache.org/jira/browse/SPARK-30423?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wenchen Fan resolved SPARK-30423.
---------------------------------
Fix Version/s: 3.0.0
Resolution: Fixed
Issue resolved by pull request 27193
[https://github.com/apache/spark/pull/27193]
> Deprecate UserDefinedAggregateFunction
> --------------------------------------
>
> Key: SPARK-30423
> URL: https://issues.apache.org/jira/browse/SPARK-30423
> Project: Spark
> Issue Type: Task
> Components: SQL
> Affects Versions: 3.0.0
> Reporter: Erik Erlandson
> Assignee: Erik Erlandson
> Priority: Major
> Fix For: 3.0.0
>
>
> Anticipating the merging of SPARK-27296, the legacy methodology for
> implementing custom user defined aggregators over untyped DataFrame based on
> UserDefinedAggregateFunction will be made obsolete. This class should be
> annotated as deprecated once the new capability is officially merged.
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