kasakrisz opened a new pull request #2227:
URL: https://github.com/apache/hive/pull/2227


   ### What changes were proposed in this pull request?
   Setup null sort order based on the value of the setting 
`hive.default.nulls.last` and the order direction when creating ReduceSink 
operator for bucketing.
   
   ### Why are the changes needed?
   Null sort order was setup based on the order direction only which may lead 
to unexpected behavior.
   
   ### Does this PR introduce _any_ user-facing change?
   No.
   
   ### How was this patch tested?
   Run existing tests.


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