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From selvaganesang <>
Subject [GitHub] incubator-trafodion pull request: [TRAFODION-1887] Upsert into ali...
Date Tue, 15 Mar 2016 20:09:06 GMT
Github user selvaganesang commented on a diff in the pull request:
    --- Diff: core/sql/optimizer/BindRelExpr.cpp ---
    @@ -10171,17 +10164,26 @@ matched clause of merge). If the upsert caused a row to be updated
in the
     base table then the old version of the row will have to be deleted from 
     indexes, and a new version inserted. Upsert is being transformed to merge
     so that we can delete the old version of an updated row from the index.
    +Upsert is also converted into merge when there are omitted cols with default values and

    +TRAF_UPSERT_WITH_INSERT_DEFAULT_SEMANTICS is set to  OFF in case of aligned format table
    +omitted current timestamp cols in case of non-aligned row format
    -NABoolean Insert::isUpsertThatNeedsMerge() const
    +NABoolean Insert::isUpsertThatNeedsMerge(NABoolean isAlignedRowFormat, NABoolean omittedDefaultCols,
    +                                   NABoolean omittedCurrentDefaultClassCols) const
    -  if (!isUpsert() || getIsTrafLoadPrep() || 
    -      (getTableDesc()->isIdentityColumnGeneratedAlways() && 
    -       getTableDesc()->hasIdentityColumnInClusteringKey()) ||
    -      getTableDesc()->getClusteringIndex()->getNAFileSet()->hasSyskey() || 
    -      !(getTableDesc()->hasSecondaryIndexes()))
    -    return FALSE;
    -  return TRUE;
    +  if (isUpsert() && 
    +      (NOT getIsTrafLoadPrep()) && 
    +      (NOT (getTableDesc()->isIdentityColumnGeneratedAlways() && getTableDesc()->hasIdentityColumnInClusteringKey()))
    +      (NOT (getTableDesc()->getClusteringIndex()->getNAFileSet()->hasSyskey()))
    +       ((getTableDesc()->hasSecondaryIndexes()) ||
    --- End diff --
    Yes. You got it correct. I can modify the lines as above, if you want me to do that

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