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https://issues.apache.org/jira/browse/TAJO-1340?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14736863#comment-14736863
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ASF GitHub Bot commented on TAJO-1340:
--------------------------------------

Github user jihoonson commented on the pull request:

    https://github.com/apache/tajo/pull/671#issuecomment-138913514
  
    Nice work! I left some trivial comments.


> Change the default output file format.
> --------------------------------------
>
>                 Key: TAJO-1340
>                 URL: https://issues.apache.org/jira/browse/TAJO-1340
>             Project: Tajo
>          Issue Type: Improvement
>          Components: Java Client, JDBC Driver, Offheap, Storage
>            Reporter: Hyunsik Choi
>            Assignee: Jinho Kim
>             Fix For: 0.11.0, 0.12.0
>
>         Attachments: TAJO-1340.patch, TAJO-1340_2.patch
>
>
> Currently, the default output file is CSV. Due to its nature, CSV has mainly 
> three problems:
>  * Its line or field delimiter can be duplicated to some character included 
> in the result data.
>  * Plan text file is likely to be larger than other file formats.
>  * Its read and write performance is slow.
> We need to change the default output file format into other file formats. We 
> also need to investigate which file format is the best for it.



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