Github user aljoscha commented on the pull request: https://github.com/apache/flink/pull/1305#issuecomment-153351332 @gyfora That's what I meant, basically the timestamps could subsume the role of the checkpointIds. I.e. The checkpointIds have the semantics of the timestamps and the timestamps would not be required. (Or the checkpointId would be removed and timestamps remain, depends on how you look at it... :smile: )
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