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From sandhyasun <...@git.apache.org>
Subject [GitHub] incubator-trafodion pull request #946: TRAFODION-1562 Enable Vsbb upsert for...
Date Wed, 08 Feb 2017 19:55:40 GMT
Github user sandhyasun commented on a diff in the pull request:

    https://github.com/apache/incubator-trafodion/pull/946#discussion_r100155118
  
    --- Diff: core/sql/optimizer/BindRelExpr.cpp ---
    @@ -10600,34 +10600,45 @@ Upsert is also converted into merge when TRAF_UPSERT_MODE is
set to MERGE and
     there are omitted cols with default values in case of aligned format table or 
     omitted current timestamp cols in case of non-aligned row format
     */
    -NABoolean Insert::isUpsertThatNeedsMerge(NABoolean isAlignedRowFormat, NABoolean omittedDefaultCols,
    -                                   NABoolean omittedCurrentDefaultClassCols) const
    +NABoolean Insert::isUpsertThatNeedsTransformation(NABoolean isAlignedRowFormat, 
    +                                                  NABoolean omittedDefaultCols,
    +                                                  NABoolean omittedCurrentDefaultClassCols,
    +                                                  NABoolean &toMerge) const
     {
    -  // The necessary conditions to convert upsert to merge and
    +  // The necessary conditions to transform upsert 
       if (isUpsert() && 
           (NOT getIsTrafLoadPrep()) && 
    -      (NOT (getTableDesc()->isIdentityColumnGeneratedAlways() && getTableDesc()->hasIdentityColumnInClusteringKey()))
&& 
    +      (NOT (getTableDesc()->isIdentityColumnGeneratedAlways() && 
    +            getTableDesc()->hasIdentityColumnInClusteringKey())) && 
           (NOT (getTableDesc()->getClusteringIndex()->getNAFileSet()->hasSyskey()))
&& 
    -        // table has secondary indexes or
    -        (getTableDesc()->hasSecondaryIndexes() ||
    -          // CQD is set to MERGE  
    -          ((CmpCommon::getDefault(TRAF_UPSERT_MODE) == DF_MERGE) &&
    +      // table has secondary indexes or
    +      (getTableDesc()->hasSecondaryIndexes() ))
    +        {
    +          toMerge = FALSE;
    +          return TRUE;
    +        }
    +  else if (isUpsert() &&   (NOT getIsTrafLoadPrep()) && 
    +           (NOT (getTableDesc()->isIdentityColumnGeneratedAlways() && getTableDesc()->hasIdentityColumnInClusteringKey()))
&& 
    +           (NOT (getTableDesc()->getClusteringIndex()->getNAFileSet()->hasSyskey()))
&&         
    +           // CQD is set to MERGE  
    --- End diff --
    
    Good point...Let me rework this to be more readable and may have to add a 3rd check. 


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