HyukjinKwon commented on a change in pull request #25939:
[SPARK-27463][PYTHON][FOLLOW-UP] Miscellaneous documentation and code cleanup
of cogroup pandas UDF
URL: https://github.com/apache/spark/pull/25939#discussion_r328877165
##########
File path: python/pyspark/sql/cogroup.py
##########
@@ -79,6 +81,27 @@ def apply(self, udf):
|20000102| 2|4.0| y|
+--------+---+---+---+
+ Alternatively, the user can define a function that takes three
arguments. In this case,
+ the grouping key(s) will be passed as the first argument and the data
will be passed as the
+ second and third arguments. The grouping key(s) will be passed as a
tuple of numpy data
Review comment:
"be pa" -> "be pa"
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