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From "He Yongqiang (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HIVE-947) Add run length encoding into RCFile's block header
Date Tue, 24 Nov 2009 23:49:39 GMT

     [ https://issues.apache.org/jira/browse/HIVE-947?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

He Yongqiang updated HIVE-947:
------------------------------

    Attachment:     (was: hive-947-2009-11-24.patch)

> Add run length encoding into RCFile's block header 
> ---------------------------------------------------
>
>                 Key: HIVE-947
>                 URL: https://issues.apache.org/jira/browse/HIVE-947
>             Project: Hadoop Hive
>          Issue Type: Improvement
>            Reporter: He Yongqiang
>            Assignee: He Yongqiang
>            Priority: Minor
>         Attachments: hive-947-2009-11-22.patch
>
>
> When RCFile constructing rows, it needs to get column value's length via calling readVLong().
And this should be avoided for fix length or most fix length columns. 
> This also should not influence old rcfile files, which means it should also work correctly
on files with previous RCFile format.

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