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From StephanEwen <...@git.apache.org>
Subject [GitHub] flink pull request: [FLINK-2861] Fields grouping on split streams ...
Date Fri, 20 Nov 2015 14:31:08 GMT
Github user StephanEwen commented on the pull request:

    https://github.com/apache/flink/pull/1387#issuecomment-158416101
  
    I ran into that issue a while back. The problem was that you emit elements that have the
name/tag of the split stream (to use the split selector) and over that, you run the regular
partitioner.
    
    Splitting this into two steps should work: Splitting, having a mapper that removes the
"split tag" and then doing the field partitioning.
    
    Would be nice to make this nice in Flink, but it is tricky. Not all functions go though
a collector, and not all collectors can split.


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