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From "JaeHwa Jung (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (TAJO-298) Catalog Federation
Date Tue, 05 Nov 2013 05:50:17 GMT

    [ https://issues.apache.org/jira/browse/TAJO-298?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13813669#comment-13813669
] 

JaeHwa Jung commented on TAJO-298:
----------------------------------

Thanks Jihoon.
I agree with your view. I also think that Catalog Federation can make some critical problems
on current architecture. 
So, I would like to discuss this topic in great detail with other guys.

> Catalog Federation
> ------------------
>
>                 Key: TAJO-298
>                 URL: https://issues.apache.org/jira/browse/TAJO-298
>             Project: Tajo
>          Issue Type: Improvement
>          Components: catalog
>    Affects Versions: 0.8-incubating
>            Reporter: JaeHwa Jung
>            Assignee: JaeHwa Jung
>             Fix For: 0.8-incubating
>
>
> Current Catalog supports just one Catalog server. But I think that users want to use
serveral tables stored of multiple Catalogs at the same time. For example, After user query
hive tables, user can inserver into tajo table. Above this, many use cases will happen. So,
I wish that tajo supports muliple Catalog named Catalog Ferderation. I was inspired from HDFS
Ferderation.



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