Github user fhueske commented on a diff in the pull request:
https://github.com/apache/flink/pull/3863#discussion_r115734432
--- Diff:
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/plan/nodes/datastream/DataStreamOverAggregate.scala
---
@@ -182,6 +189,7 @@ class DataStreamOverAggregate(
}
def createUnboundedAndCurrentRowOverWindow(
--- End diff --
we should add a warning similar to `DataStreamGroupAggregate` if the
windows are partitioned. The non-partitioned case can be cleaned up as well,
but is not so critical.
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