Haiyang Sun created SPARK-59759:
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Summary: Support Spark accumulator updates in unified external UDF
execution
Key: SPARK-59759
URL: https://issues.apache.org/jira/browse/SPARK-59759
Project: Spark
Issue Type: Sub-task
Components: UDF
Affects Versions: 4.4.0
Reporter: Haiyang Sun
PySpark’s `_wrap_function` normally attaches `sc._javaAccumulator` to every
`SimplePythonFunction`. The planning path can safely accept this transport
handle, but unified
external UDF execution does not yet propagate the worker’s accumulator updates
back to Spark.
This is a blocker for production enablement of unified Python UDF execution.
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