Github user nonstop-qfchen commented on a diff in the pull request:
https://github.com/apache/incubator-trafodion/pull/255#discussion_r49478179
--- Diff: core/sql/optimizer/ValueDesc.cpp ---
@@ -3165,7 +3165,11 @@ void ValueIdSet::replaceVEGExpressions
if (iePtr != exprId.getItemExpr()) // a replacement was done
{
subtractElement(exprId); // remove existing ValueId
- newExpr += iePtr->getValueId(); // replace with a new one
+ //insert new expression(s)
+ if (iePtr->getOperatorType() == ITM_AND)
+ iePtr->convertToValueIdSet(newExpr, NULL, ITM_AND, FALSE,
FALSE);
--- End diff --
Should add a comment to ValueIdSet::replaceVEGExpressions() on converting
the AND backbone into a valueId set.
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