Github user fhueske commented on a diff in the pull request: https://github.com/apache/flink/pull/4157#discussion_r125495413 --- Diff: flink-libraries/flink-table/src/main/scala/org/apache/flink/table/api/queryConfig.scala --- @@ -37,6 +37,13 @@ class BatchQueryConfig private[table] extends QueryConfig class StreamQueryConfig private[table] extends QueryConfig { /** + * The non-windowed groupby aggregate update the calculation result according a configuration of + * time interval. By default non-windowed groupby aggregate will update calculation result each + * row. + */ + private var unboundedAggregateUpdateInterval: Time = Time.milliseconds(0) --- End diff -- I think the distinction makes sense but doubt that everybody would make the same distinction. I'm fine with `updateInterval` but I also think that we need an additional parameter to specify whether the update interval should be in event-time or processing-time.
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