[SPARK-56741][PYTHON] Remove unused GroupPandasUDFSerializer#55705
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[SPARK-56741][PYTHON] Remove unused GroupPandasUDFSerializer#55705Yicong-Huang wants to merge 1 commit into
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zhengruifeng
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### What changes were proposed in this pull request? Delete `GroupPandasUDFSerializer` from `python/pyspark/sql/pandas/serializers.py`. ### Why are the changes needed? `GroupPandasUDFSerializer` is no longer used after SPARK-56477 refactored `SQL_GROUPED_MAP_PANDAS_UDF` and SPARK-56691 refactored `SQL_GROUPED_MAP_PANDAS_ITER_UDF` to use `ArrowStreamGroupSerializer` directly. This class can be safely deleted. Part of SPARK-55384. ### Does this PR introduce _any_ user-facing change? No. ### How was this patch tested? Existing tests: `pyspark.sql.tests.pandas.test_pandas_grouped_map`. ### Was this patch authored or co-authored using generative AI tooling? No. Closes #55705 from Yicong-Huang/SPARK-56741. Authored-by: Yicong Huang <17627829+Yicong-Huang@users.noreply.github.com> Signed-off-by: Ruifeng Zheng <ruifengz@foxmail.com> (cherry picked from commit e7db186) Signed-off-by: Ruifeng Zheng <ruifengz@foxmail.com>
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What changes were proposed in this pull request?
Delete
GroupPandasUDFSerializerfrompython/pyspark/sql/pandas/serializers.py.Why are the changes needed?
GroupPandasUDFSerializeris no longer used after SPARK-56477 refactoredSQL_GROUPED_MAP_PANDAS_UDFand SPARK-56691 refactoredSQL_GROUPED_MAP_PANDAS_ITER_UDFto useArrowStreamGroupSerializerdirectly. This class can be safely deleted.Part of SPARK-55384.
Does this PR introduce any user-facing change?
No.
How was this patch tested?
Existing tests:
pyspark.sql.tests.pandas.test_pandas_grouped_map.Was this patch authored or co-authored using generative AI tooling?
No.