Github user traflm commented on a diff in the pull request:
https://github.com/apache/incubator-trafodion/pull/795#discussion_r87316666
--- Diff: core/sql/optimizer/RelGrby.h ---
@@ -152,6 +154,9 @@ class GroupByAgg : public RelExpr
inline void setGroupExpr(ValueIdSet &expr) { groupExpr_ = expr;}
inline void addGroupExpr(ValueIdSet &expr) { groupExpr_ += expr;}
+ inline ValueIdList & extraOrderExpr() { return extraOrderExpr_; }
--- End diff --
I will remove this method. It is doable.
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