dvogelbacher commented on a change in pull request #24650:
[SPARK-27778][PySpark] Fix toPandas conversion using arrow for DFs with no
partitions
URL: https://github.com/apache/spark/pull/24650#discussion_r285823823
##########
File path: python/pyspark/sql/tests/test_arrow.py
##########
@@ -183,6 +183,13 @@ def test_filtered_frame(self):
self.assertEqual(pdf.columns[0], "i")
self.assertTrue(pdf.empty)
+ def test_no_partition_frame(self):
+ schema = StructType([StructField("field1", StringType(), True)])
+ df = self.spark.createDataFrame(self.sc.emptyRDD(), schema)
+ pdf = df.toPandas()
+ self.assertEqual(len(pdf.columns), 1)
Review comment:
done
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