Github user aljoscha commented on the pull request: https://github.com/apache/flink/pull/594#issuecomment-92854325 Regarding StreamRecord, is the UID still required? In my understanding we are working towards state-snapshotting, so that would not require to have IDs in records anymore, correct? I mentioned at some earlier point that the IDs are not used anymore, so what's the status now? If we got rid of the UID then we can also get rid of StreamRecord and StreamRecord serializer.
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