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From "Jesus Camacho Rodriguez (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-11813) Avoid expensive AST tree conversion to String for expressions in WHERE clause in CBO
Date Mon, 14 Sep 2015 15:45:45 GMT
Jesus Camacho Rodriguez created HIVE-11813:
----------------------------------------------

             Summary: Avoid expensive AST tree conversion to String for expressions in WHERE
clause in CBO
                 Key: HIVE-11813
                 URL: https://issues.apache.org/jira/browse/HIVE-11813
             Project: Hive
          Issue Type: Bug
          Components: CBO
    Affects Versions: 1.3.0, 2.0.0
            Reporter: Jesus Camacho Rodriguez
            Assignee: Jesus Camacho Rodriguez


We use the AST tree String representation of a condition in the WHERE clause to identify its
column in the RowResolver. This can lead to OOM Exceptions when the condition is very large.



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