Tian Gao created SPARK-54763:
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Summary: Accelerate test_udf_return_types.py
Key: SPARK-54763
URL: https://issues.apache.org/jira/browse/SPARK-54763
Project: Spark
Issue Type: Test
Components: Tests
Affects Versions: 4.2.0
Reporter: Tian Gao
test_udf_return_types.py is one of our slowest tests. It took ~300s on github
action. The test generated ~1000 udfs and test them one by one. We don't want
to touch the logic too much, but we know a lot of the time is wasted on
communication - which we can fix quickly with multi-thread.
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