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From zellerh <>
Subject [GitHub] incubator-trafodion pull request #795: [TRAFODION-2270] support ORDER BY in ...
Date Tue, 08 Nov 2016 01:38:27 GMT
Github user zellerh commented on a diff in the pull request:
    --- Diff: core/sql/optimizer/RelGrby.h ---
    @@ -552,7 +560,9 @@ class GroupByAgg : public RelExpr
       // ---------------------------------------------------------------------
       ItemExpr    * groupExprTree_;
       ValueIdSet  groupExpr_;
    +  ItemExpr  * extraGrpOrderby_;
    +  ValueIdList  extraOrderExpr_;
    --- End diff --
    Anoop added the rollup feature recently, see
This also introduces an extra order by expression for a groupby. Maybe you and Anoop can decide
whether you want to combine your code, for example by using this extra order for the ROLLUP
groupby as well.

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