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From "Jinho Kim (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (TAJO-119) Refactor and Improve Datum
Date Fri, 13 Sep 2013 08:15:51 GMT

     [ https://issues.apache.org/jira/browse/TAJO-119?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jinho Kim updated TAJO-119:
---------------------------

    Description: 
A datum constructor called too many times. and there are so many overhead of converting between
a primitive and string
* Change to lazy datum types
* Improve memory efficiency

  was:
A datum constructor called too many times. and there are so many overhead of converting between
a primitive and string
* Change to lazy datum types
* Improve memory efficiency(java unsafe?)

    
> Refactor and Improve Datum
> --------------------------
>
>                 Key: TAJO-119
>                 URL: https://issues.apache.org/jira/browse/TAJO-119
>             Project: Tajo
>          Issue Type: Improvement
>          Components: storage
>            Reporter: Jinho Kim
>            Assignee: Jinho Kim
>         Attachments: TAJO-119.patch
>
>
> A datum constructor called too many times. and there are so many overhead of converting
between a primitive and string
> * Change to lazy datum types
> * Improve memory efficiency

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