sadhen commented on a change in pull request #31735:
URL: https://github.com/apache/spark/pull/31735#discussion_r595695013
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File path: python/pyspark/sql/pandas/types.py
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@@ -74,6 +74,8 @@ def to_arrow_type(dt):
arrow_type = pa.struct(fields)
elif type(dt) == NullType:
arrow_type = pa.null()
+ elif isinstance(dt, UserDefinedType):
+ arrow_type = to_arrow_type(dt.sqlType())
Review comment:
Additional info:
SparkConversionMixin.createDataFrame -> to_arrow_type
PandasConversionMixin.toPandas -> to_arrow_schema -> to_arrow_type
we will add unit tests on it. (P.S. I'm co-working to eddyxu.)
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