[GitHub] [spark] HyukjinKwon commented on a diff in pull request #40330: [SPARK-42712][PYTHON][DOC] Improve docstring of mapInPandas and mapInArrow

["HyukjinKwon (via GitHub)" <gi...@apache.org>]

HyukjinKwon commented on code in PR #40330:
URL: https://github.com/apache/spark/pull/40330#discussion_r1129240370


##########
python/pyspark/sql/pandas/map_ops.py:
##########
@@ -44,7 +44,8 @@ def mapInPandas(
         together as an iterator of `pandas.DataFrame`\\s to the function and the
         returned iterator of `pandas.DataFrame`\\s are combined as a :class:`DataFrame`.
         Each `pandas.DataFrame` size can be controlled by
-        `spark.sql.execution.arrow.maxRecordsPerBatch`.
+        `spark.sql.execution.arrow.maxRecordsPerBatch`. The size of the function's input and
+        output might be different.

Review Comment:
   ```suggestion
           output can be different.
   ```



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