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From sureshsubbiah <>
Subject [GitHub] incubator-trafodion pull request #651: Trafodion 2140
Date Wed, 10 Aug 2016 13:33:38 GMT
Github user sureshsubbiah commented on a diff in the pull request:
    --- Diff: core/sql/optimizer/RelSample.cpp ---
    @@ -925,7 +925,6 @@ RelExpr *RelSample::bindNode(BindWA *bindWA)
       RelExpr* myChild = child(0);
       if (myChild->getOperatorType() == REL_SCAN &&
           (static_cast<Scan*>(myChild))->isHbaseTable() &&
    -      myChild->selectionPred().entries() == 0 &&
    --- End diff --
    I would have assumed that we still need this check for a query with a sample clause and
a predicate ? Not for update stats, but for some other SELECT statement with SAMPLE. Simple
predicates can be pushed down only for regular format rows, for aligned format rows predicate
evaluation will be in Trafodion.

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