Github user StephanEwen commented on the pull request:
https://github.com/apache/flink/pull/1479#issuecomment-168211988
Cool addition, thanks a lot!
Looking through the code, there is a lot of work done per element inserted,
like creating a hash map, an index request, etc. Is there some way to make the
work-per-element more lightweight and do more work in the initialization?
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