cloud-fan commented on a change in pull request #28975:
URL: https://github.com/apache/spark/pull/28975#discussion_r450016555
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File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/streaming/state/SymmetricHashJoinStateManager.scala
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@@ -259,6 +269,9 @@ class SymmetricHashJoinStateManager(
return null
}
+ // Make a copy on value row, as below cleanup logic may update the
value row silently.
+ currentValue = currentValue.copy(value = currentValue.value.copy())
Review comment:
so this is the only place to do copy?
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