Github user StephanEwen commented on the pull request:
https://github.com/apache/flink/pull/906#issuecomment-121559974
Yeah, we can add a way to not have timestamps. But my feeling is that this
is pre-mature optimization.
The point where this is really relevant is when people do super small
records and push the throughput to max capacity. That impacts standalone
benchmarks, but is probably not a real world issue.
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