[GitHub] [spark] BryanCutler commented on a change in pull request #34505: [SPARK-37228][SQL][PYTHON] Implement DataFrame.mapInArrow in Python

[GitBox <gi...@apache.org>]

BryanCutler commented on a change in pull request #34505:
URL: https://github.com/apache/spark/pull/34505#discussion_r747191747



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File path: python/pyspark/sql/pandas/map_ops.py
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@@ -91,6 +91,68 @@ def mapInPandas(
         jdf = self._jdf.mapInPandas(udf_column._jc.expr())  # type: ignore[operator]
         return DataFrame(jdf, self.sql_ctx)
 
+    def mapInArrow(
+        self, func: "ArrowMapIterFunction", schema: Union[StructType, str]
+    ) -> "DataFrame":
+        """
+        Maps an iterator of batches in the current :class:`DataFrame` using a Python native
+        function that takes and outputs a PyArrow's `RecordBatch`, and returns the result as a
+        :class:`DataFrame`.

Review comment:
       result as a `RecordBatch` ?




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