Yicong Huang created SPARK-56781:
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Summary: Refactor SQL_GROUPED_AGG_PANDAS_UDF
Key: SPARK-56781
URL: https://issues.apache.org/jira/browse/SPARK-56781
Project: Spark
Issue Type: Sub-task
Components: PySpark
Affects Versions: 4.2.0
Reporter: Yicong Huang
Extract the grouped aggregation Pandas UDF logic out of
{{ArrowStreamAggPandasUDFSerializer}} so that {{SQL_GROUPED_AGG_PANDAS_UDF}} is
self-contained inside {{read_udfs()}} and uses {{ArrowStreamSerializer}}
directly. The Pandas-side aggregation should be performed in the wrapper
function rather than inside a custom serializer.
Depends on the benchmark added in SPARK-56562. Tracked under SPARK-55388.
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