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https://github.com/apache/spark/blob/58be82ad4b98fc17e821e916e69e77a6aa36209d/sql/hive-thriftserver/src/test/scala/org/apache/spark/sql/hive/thriftserver/HiveThriftServer2Suites.scala#L782-L824
We should also verify the UDF works.
GitHub Pull Request #26812