[GitHub] drill issue #1218: DRILL-6335: Refactor row set abstractions to prepare for ...

[paul-rogers]

Github user paul-rogers commented on the issue:

    https://github.com/apache/drill/pull/1218
  
    @ppadma , this PR contains a subset of the changes from the previous big 
PR. Mostly refactoring. Can you take a look? Thanks. 


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