Support launching Map Pandas UDF on empty partitions #9557
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Signed-off-by: Firestarman <firestarmanllc@gmail.com>
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wbo4958
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Oct 27, 2023
...lugin/src/main/scala/org/apache/spark/sql/rapids/execution/python/GpuArrowPythonRunner.scala
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Signed-off-by: Firestarman <firestarmanllc@gmail.com>
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revans2
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Oct 27, 2023
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fixes #9480
This PR adds support of launching Map Pandas UDF on empty partitions to align with Spark's behavior.
So far I don't see other types of Pandas UDF will be called for empty partitions.
The test is copied from the example in the linked issue.