BryanCutler commented on a change in pull request #23900: [SPARK-23836][PYTHON]
Add support for StructType return in Scalar Pandas UDF
URL: https://github.com/apache/spark/pull/23900#discussion_r261016083
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File path: python/pyspark/serializers.py
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@@ -295,7 +297,33 @@ def create_array(s, t):
raise RuntimeError(error_msg % (s.dtype, t), e)
return array
- arrs = [create_array(s, t) for s, t in series]
+ arrs = []
+ for s, t in series:
+ if t is not None and pa.types.is_struct(t):
+ if not isinstance(s, pd.DataFrame):
+ raise ValueError("A field of type StructType expects a
pandas.DataFrame, " +
Review comment:
Oh right, thanks!
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