GitHub user DaveBirdsall opened a pull request:

    https://github.com/apache/trafodion/pull/1465

    [TRAFODION-2983] Be careful to preserve inputs needed for output computation

    This fix changes GroupByAgg::tryToPullUpPredicatesInPreCodeGen 
(optimizer/RelExpr.cpp) to make sure that characteristic inputs needed to 
calculate characteristic output expressions are not removed.
    
    It also makes a small improvement to some ValueId Equivalence Group (VEG) 
debugging code.
    


You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/DaveBirdsall/trafodion Trafodion2983

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/trafodion/pull/1465.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #1465
    
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commit 3375ecb3ece47f5d883d1d81608740589f3fc809
Author: Dave Birdsall <dbirdsall@...>
Date:   2018-03-08T00:05:45Z

    [TRAFODION-2983] Be careful to preserve inputs needed for output computation

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