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Posted to jira@arrow.apache.org by "Projjal Chanda (Jira)" <ji...@apache.org> on 2021/02/13 05:13:00 UTC

[jira] [Created] (ARROW-11617) [C++][Gandiva] Fix nested if-else optimisation in gandiva

Projjal Chanda created ARROW-11617:
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             Summary: [C++][Gandiva] Fix nested if-else optimisation in gandiva
                 Key: ARROW-11617
                 URL: https://issues.apache.org/jira/browse/ARROW-11617
             Project: Apache Arrow
          Issue Type: Bug
            Reporter: Projjal Chanda
            Assignee: Projjal Chanda


{color:#1d1c1d}In gandiva, when we have nested if-else statements we reuse the local bitmap and treat it is a single logical if - elseif - .. - --else condition. However, when he have say another function between them like{color}
{color:#1d1c1d}IF{color}
{color:#1d1c1d}THEN{color}
{color:#1d1c1d}ELSE{color}
   {color:#1d1c1d}function({color}
     {color:#1d1c1d}IF{color}
     {color:#1d1c1d}THEN{color}
     {color:#1d1c1d}ELSE{color}
  {color:#1d1c1d}){color}

{color:#1d1c1d}in such cases also currently we are doing same thing which can lead to incorrect results{color}



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