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Posted to dev@hive.apache.org by "Gunther Hagleitner (JIRA)" <ji...@apache.org> on 2014/11/09 01:30:34 UTC

[jira] [Updated] (HIVE-7509) Fast stripe level merging for ORC

     [ https://issues.apache.org/jira/browse/HIVE-7509?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gunther Hagleitner updated HIVE-7509:
-------------------------------------
    Issue Type: New Feature  (was: Bug)

> Fast stripe level merging for ORC
> ---------------------------------
>
>                 Key: HIVE-7509
>                 URL: https://issues.apache.org/jira/browse/HIVE-7509
>             Project: Hive
>          Issue Type: New Feature
>    Affects Versions: 0.14.0
>            Reporter: Prasanth J
>            Assignee: Prasanth J
>              Labels: orcfile
>             Fix For: 0.14.0
>
>         Attachments: HIVE-7509.1.patch, HIVE-7509.2.patch, HIVE-7509.3.patch, HIVE-7509.4.patch, HIVE-7509.5.patch
>
>
> Similar to HIVE-1950, add support for fast stripe level merging of ORC files through CONCATENATE command and conditional merge task. This fast merging is ideal for merging many small ORC files to a larger file without decompressing and decoding the data of small orc files.



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