sadhen commented on a change in pull request #31735:
URL: https://github.com/apache/spark/pull/31735#discussion_r605415479
##########
File path: python/pyspark/sql/tests/test_pandas_udf_scalar.py
##########
@@ -1109,6 +1109,99 @@ def f3i(it):
self.assertEqual(expected, df1.collect())
+ # SPARK-34799
+ def test_user_defined_types_with_udf(self):
+ """PandasUDF returns single UDT out.
+ """
+
+ # ExamplePointUDT uses ArrayType to present its sqlType.
+ @pandas_udf(ExamplePointUDT())
+ def create_vector(series: pd.Series) -> pd.Series:
+ vectors = []
+ for _, item in series.items():
+ vectors.append(ExamplePoint(item, item + 1))
+ return pd.Series(vectors)
+
+ # ExampleBoxUDT uses StructType to present its sqlType.
+ @pandas_udf(ExampleBoxUDT())
+ def create_boxes(series: pd.Series) -> pd.Series:
+ boxes = []
+ for _, item in series.items():
+ boxes.append(ExampleBox(item, item + 1, item + 2, item + 3))
+ return pd.Series(boxes)
+
+ df = self.spark.range(2)
+ df = (
+ df
+ .withColumn("vector", create_vector(col("id")))
+ .withColumn("box", create_boxes(col("id")))
+ )
+ self.assertEqual([
+ Row(id=0, vector=ExamplePoint(0, 1), box=ExampleBox(0, 1, 2, 3)),
+ Row(id=1, vector=ExamplePoint(1, 2), box=ExampleBox(1, 2, 3, 4))
+ ], df.collect())
+
+ # SPARK-34799
+ def test_user_defined_types_in_struct(self):
+ @pandas_udf(StructType([
+ StructField("vec", ArrayType(ExamplePointUDT())),
+ StructField("box", ArrayType(ExampleBoxUDT()))
+ ]))
+ def array_of_udt_structs(series: pd.Series) -> pd.DataFrame:
+ vectors = []
+ for _, i in series.items():
+ vectors.append({
+ "vec": [ExamplePoint(i, i), ExamplePoint(i + 1, i + 1)],
+ "box": [ExampleBox(*([i] * 4)), ExampleBox(*([i+1] * 4))],
+ })
+ return pd.DataFrame(vectors)
+
+ df = self.spark.range(1, 3)
+ df = df.withColumn("nested", array_of_udt_structs(df.id))
+ self.assertEqual([
+ Row(id=1, nested=Row(
+ vec=[ExamplePoint(1, 1), ExamplePoint(2, 2)],
+ box=[ExampleBox(1, 1, 1, 1), ExampleBox(2, 2, 2, 2)])),
+ Row(id=2, nested=Row(
+ vec=[ExamplePoint(2, 2), ExamplePoint(3, 3)],
+ box=[ExampleBox(2, 2, 2, 2), ExampleBox(3, 3, 3, 3)]))
+ ], df.collect())
+
+ # SPARK-34799
+ def test_user_defined_types_in_array(self):
+ @pandas_udf(ArrayType(ExamplePointUDT()))
Review comment:
postponed
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