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From "Jihoon Son (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (TAJO-266) Extend ExecutionBlock and Task to support multiple outputs
Date Tue, 26 Nov 2013 09:16:35 GMT

    [ https://issues.apache.org/jira/browse/TAJO-266?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13832429#comment-13832429
] 

Jihoon Son commented on TAJO-266:
---------------------------------

For this issue, I created a new branch called 'DAG-execplan-branch'. 
I'll proceed tests for this issue in this branch as mentioned above.

Also, a new version of the same name is created in Jira.
All the issues about this branch should include DAG-execplan-branch in its fix versions.

> Extend ExecutionBlock and Task to support multiple outputs
> ----------------------------------------------------------
>
>                 Key: TAJO-266
>                 URL: https://issues.apache.org/jira/browse/TAJO-266
>             Project: Tajo
>          Issue Type: Task
>          Components: distributed query plan, worker
>            Reporter: Jihoon Son
>            Assignee: Jihoon Son
>             Fix For: DAG-execplan-branch
>
>         Attachments: convert execution plan.jpg, current master plan.jpg, optimized master
plan.jpg
>
>
> In the current Tajo, every task has the only one output.
> However, supporting multiple outputs per task very useful for the distributed plan optimization.



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