bogao007 commented on code in PR #48373:
URL: https://github.com/apache/spark/pull/48373#discussion_r1819945337
##########
python/pyspark/sql/pandas/group_ops.py:
##########
@@ -503,7 +503,11 @@ def transformWithStateUDF(
statefulProcessorApiClient.set_implicit_key(key)
result = statefulProcessor.handleInputRows(key, inputRows)
- return result
+ try:
+ yield result
+ finally:
+ statefulProcessor.close()
Review Comment:
Maybe we could try injecting a dummy row at the end of the iterator in
`writeNextInputToArrowStream` indicating all the keys have been processed, but
I'll need to do some experiments first.
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