[SPARK-58262][PYTHON] Remove ArrowStreamPandasUDFSerializer#57433
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[SPARK-58262][PYTHON] Remove ArrowStreamPandasUDFSerializer#57433Yicong-Huang wants to merge 1 commit into
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What changes were proposed in this pull request?
Remove the
ArrowStreamPandasUDFSerializerclass frompython/pyspark/sql/pandas/serializers.py.Why are the changes needed?
All non-grouped Pandas eval types (
SQL_SCALAR_PANDAS_UDF,SQL_SCALAR_PANDAS_ITER_UDF,SQL_MAP_PANDAS_ITER_UDF) were refactored to useArrowStreamSerializerwithArrowBatchTransformer, and the last remaining subclassApplyInPandasWithStateSerializerwas removed in SPARK-58243. The class no longer has any instantiation sites, so it can be removed.Does this PR introduce any user-facing change?
No.
How was this patch tested?
Existing tests. No behavior change.
Was this patch authored or co-authored using generative AI tooling?
No.