Xiao Li created SPARK-25328:
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Summary: Add a test case for having two columns as the grouping
key in group aggregate pandas UDF
Key: SPARK-25328
URL: https://issues.apache.org/jira/browse/SPARK-25328
Project: Spark
Issue Type: Sub-task
Components: PySpark
Affects Versions: 2.4.0
Reporter: Xiao Li
https://github.com/apache/spark/pull/20295 added an alternative interface for
group aggregate pandas UDFs. It does not have any test case that have more than
one columns as the grouping key.
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