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From "Gunther Hagleitner (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-4246) Implement predicate pushdown for ORC
Date Mon, 12 Aug 2013 02:34:52 GMT

    [ https://issues.apache.org/jira/browse/HIVE-4246?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13736507#comment-13736507
] 

Gunther Hagleitner commented on HIVE-4246:
------------------------------------------

Path .2 does not apply cleanly. [~owen.omalley] can you please rebase?
                
> Implement predicate pushdown for ORC
> ------------------------------------
>
>                 Key: HIVE-4246
>                 URL: https://issues.apache.org/jira/browse/HIVE-4246
>             Project: Hive
>          Issue Type: New Feature
>          Components: File Formats
>            Reporter: Owen O'Malley
>            Assignee: Owen O'Malley
>         Attachments: HIVE-4246.D11415.1.patch, HIVE-4246.D11415.2.patch
>
>
> 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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