jingz-db commented on code in PR #47933:
URL: https://github.com/apache/spark/pull/47933#discussion_r1746097930
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sql/core/src/main/scala/org/apache/spark/sql/execution/python/TransformWithStateInPandasStateServer.scala:
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@@ -124,6 +152,8 @@ class TransformWithStateInPandasStateServer(
// The key row is serialized as a byte array, we need to convert it
back to a Row
val keyRow = PythonSQLUtils.toJVMRow(keyBytes, groupingKeySchema,
keyRowDeserializer)
ImplicitGroupingKeyTracker.setImplicitKey(keyRow)
+ // Reset the list state iterators for a new grouping key.
+ listStateIterators = new mutable.HashMap[String, Iterator[Row]]()
sendResponse(0)
case ImplicitGroupingKeyRequest.MethodCase.REMOVEIMPLICITKEY =>
ImplicitGroupingKeyTracker.removeImplicitKey()
Review Comment:
We should probably also do listStateIterators = new mutable.HashMap[String,
Iterator[Row]]() here.
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