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https://issues.apache.org/jira/browse/TRAFODION-1562?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15858355#comment-15858355
 ] 

ASF GitHub Bot commented on TRAFODION-1562:
-------------------------------------------

Github user DaveBirdsall commented on a diff in the pull request:

    https://github.com/apache/incubator-trafodion/pull/946#discussion_r100134813
  
    --- Diff: core/sql/executor/ExHbaseIUD.cpp ---
    @@ -1620,21 +1685,20 @@ ExWorkProcRetcode 
ExHbaseAccessBulkLoadPrepSQTcb::work()
           {
        if (qparent_.up->isFull())
              return WORK_OK;
    -       
    +
        if (returnUpdateExpr())
        {
    -     ex_queue_entry * up_entry = qparent_.up->getTailEntry();
    -     
    -     // allocate tupps where returned rows will be created
    -     if (allocateUpEntryTupps(
    -                              -1,
    -                              0,
    -                              hbaseAccessTdb().returnedTuppIndex_,
    -                              hbaseAccessTdb().returnUpdatedRowLen_,
    -                              FALSE,
    -                              &rc))
    +     ex_queue_entry * up_entry = qparent_.up->getTailEntry();       
            return rc;
    -     
    +            // allocate tupps where returned rows will be created
    +            if (allocateUpEntryTupps(
    +                 -1,
    +                 0,
    +                 hbaseAccessTdb().returnedTuppIndex_,
    +                 hbaseAccessTdb().returnUpdatedRowLen_,
    +                 FALSE,
    +                 &rc))  
    +              return 1;
    --- End diff --
    
    Should this be return rc?


> Changes in query tree when the upsert command is transformed into merge
> -----------------------------------------------------------------------
>
>                 Key: TRAFODION-1562
>                 URL: https://issues.apache.org/jira/browse/TRAFODION-1562
>             Project: Apache Trafodion
>          Issue Type: Sub-task
>          Components: sql-cmp
>            Reporter: Selvaganesan Govindarajan
>            Assignee: Sandhya Sundaresan
>         Attachments: BatchUpsertTransformation.pdf
>
>
> to improve the performance as explained in the main JIRA



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