Github user ChengXiangLi commented on the pull request:
https://github.com/apache/flink/pull/888#issuecomment-128563750
Thanks for the review, @StephanEwen , i'm very interesting in this project,
and i would like to contribute more. @vasia , I think stephan has helped to
answer the question yet, the most important reason is that i want to reuse the
memory occupied by hash table buckets. Besides, since this is a performance
sense issue, i try to make this bloom filter as much simple and efficient as i
can, for example, the hashcode of join key is already generated and stored in
hybrid hash join, i just reuse the hashcode instead of generate it by join key
value inside bloom filter again.
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