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Posted to dev@hive.apache.org by "Matt McCline (JIRA)" <ji...@apache.org> on 2018/02/28 02:00:00 UTC

[jira] [Created] (HIVE-18819) Vectorization: Optimize IF statement expression evaluation of THEN/ELSE

Matt McCline created HIVE-18819:
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             Summary: Vectorization: Optimize IF statement expression evaluation of THEN/ELSE
                 Key: HIVE-18819
                 URL: https://issues.apache.org/jira/browse/HIVE-18819
             Project: Hive
          Issue Type: Bug
          Components: Hive
    Affects Versions: 3.0.0
            Reporter: Matt McCline
            Assignee: Matt McCline


Currently, all the rows of a batch are evaluated for the THEN and ELSE expressions even though only a value from one of them is needed for any particular row.



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