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https://issues.apache.org/jira/browse/SPARK-48008?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Herman van Hövell resolved SPARK-48008.
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Fix Version/s: 4.0.0
Resolution: Fixed
> Support UDAF in Spark Connect
> -----------------------------
>
> Key: SPARK-48008
> URL: https://issues.apache.org/jira/browse/SPARK-48008
> Project: Spark
> Issue Type: New Feature
> Components: Connect
> Affects Versions: 4.0.0
> Reporter: Pengfei Xu
> Assignee: Pengfei Xu
> Priority: Major
> Labels: pull-request-available
> Fix For: 4.0.0
>
>
> Currently Spark Connect supports only UDFs. We need to add support for UDAFs,
> specifically `Aggregator[INT, BUF, OUT]`.
> The user-facing API should not change, which includes Aggregator methods and
> the `spark.udf.register("agg", udaf(agg))` API.
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