Yicong Huang created SPARK-56757:
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Summary: Refactor SQL_SCALAR_PANDAS_ITER_UDF
Key: SPARK-56757
URL: https://issues.apache.org/jira/browse/SPARK-56757
Project: Spark
Issue Type: Sub-task
Components: PySpark
Affects Versions: 4.2.0
Reporter: Yicong Huang
Refactor SQL_SCALAR_PANDAS_ITER_UDF to use ArrowStreamSerializer as pure I/O,
moving the iterator scalar Pandas UDF logic from ArrowStreamPandasUDFSerializer
into worker.py. The wrapper function handles the Pandas iterator protocol so
read_udfs() can be self-contained.
Part of SPARK-55388.
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