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Posted to dev@hive.apache.org by "Owen O'Malley (JIRA)" <ji...@apache.org> on 2013/03/28 17:45:15 UTC

[jira] [Created] (HIVE-4246) Implement predicate pushdown for ORC

Owen O'Malley created HIVE-4246:
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             Summary: Implement predicate pushdown for ORC
                 Key: HIVE-4246
                 URL: https://issues.apache.org/jira/browse/HIVE-4246
             Project: Hive
          Issue Type: New Feature
            Reporter: Owen O'Malley
            Assignee: Owen O'Malley


By using the push down predicates from the table scan operator, ORC can skip over 10,000 rows at a time that won't satisfy the predicate. This will help a lot, especially if the file is sorted by the column that is used in the predicate.

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