Github user zellerh commented on a diff in the pull request: https://github.com/apache/incubator-trafodion/pull/826#discussion_r87305909 --- Diff: core/sql/optimizer/BindRelExpr.cpp --- @@ -10298,10 +10331,17 @@ RelExpr *Insert::bindNode(BindWA *bindWA) } if (isUpsertThatNeedsMerge(isAlignedRowFormat, omittedDefaultCols, omittedCurrentDefaultClassCols)) { - boundExpr = xformUpsertToMerge(bindWA); - return boundExpr; + if (CmpCommon::getDefault(TRAF_UPSERT_TO_EFF_TREE) == DF_OFF) + { + boundExpr = xformUpsertToMerge(bindWA); + return boundExpr; + } + else if( CmpCommon::getDefault(TRAF_UPSERT_TO_EFF_TREE) == DF_ON) + boundExpr = xformUpsertToEfficientTree(bindWA); + --- End diff -- This does nothing if TRAF_UPSERT_TO_EFF_TREE is set to something other than ON or OFF, is that ok? In this case we could produce incorrect results as far as I understand.
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