Github user gatorsmile commented on a diff in the pull request:
https://github.com/apache/spark/pull/21737#discussion_r201761976
--- Diff: python/pyspark/sql/tests.py ---
@@ -5925,6 +5925,22 @@ def test_invalid_args(self):
'mixture.*aggregate function.*group aggregate pandas
UDF'):
df.groupby(df.id).agg(mean_udf(df.v), mean(df.v)).collect()
+ def test_self_join_with_pandas(self):
--- End diff --
Just realized this test is in a wrong class. This should be moved to
GroupedMapPandasUDFTests
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