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From ztao1987 <...@git.apache.org>
Subject [GitHub] incubator-hawq pull request: HAWQ-402. Fix bug that core dump due ...
Date Mon, 15 Feb 2016 09:30:40 GMT
Github user ztao1987 commented on a diff in the pull request:

    --- Diff: src/backend/optimizer/util/tlist.c ---
    @@ -317,6 +317,10 @@ get_sortgrouplist_exprs(List *sortClauses, List *targetList)
     		SortClause *sortcl = (SortClause *) lfirst(l);
     		Node	   *sortexpr;
    +		// if GroupClause in grouping sets is null,
    --- End diff --

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