Github user pnowojski commented on a diff in the pull request: https://github.com/apache/flink/pull/5481#discussion_r168122242 --- Diff: flink-libraries/flink-table/src/main/scala/org/apache/flink/table/runtime/aggregate/GroupAggProcessFunction.scala --- @@ -162,7 +162,7 @@ class GroupAggProcessFunction( override def onTimer( timestamp: Long, - ctx: ProcessFunction[CRow, CRow]#OnTimerContext, + ctx: ProcessFunction[CRow, CRow]#OnTimerContext[_], --- End diff -- I'm not a scala expert, but is this change somehow related to adding the `getCurrentKey()` method?
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