Github user fhueske commented on the pull request:
https://github.com/apache/flink/pull/1105#issuecomment-139999460
As I said, I did not look at the actual implementation of the PR besides
counting expensive operators.
Since we have implementations for both, we could simply run a few
benchmarks to get an idea of the trade-offs. Of course these will be just a few
points in the whole space but maybe better than nothing...
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