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From "Hyunsik Choi (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (TAJO-304) drop table command should not remove data files in default
Date Fri, 06 Dec 2013 07:39:36 GMT

     [ https://issues.apache.org/jira/browse/TAJO-304?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Hyunsik Choi resolved TAJO-304.
-------------------------------

    Resolution: Fixed

I've just committed the patch, fixing it as resolved. Thank you for the fast reviews.

> drop table command should not remove data files in default
> ----------------------------------------------------------
>
>                 Key: TAJO-304
>                 URL: https://issues.apache.org/jira/browse/TAJO-304
>             Project: Tajo
>          Issue Type: Improvement
>          Components: catalog, master
>            Reporter: Hyunsik Choi
>            Assignee: Hyunsik Choi
>             Fix For: 0.8-incubating
>
>         Attachments: TAJO-304.patch
>
>
> h3. Problem
> In the current implementation, Tajo removes a data directory when a user issues 'drop
table' command. But, it is very dangerous in many cases. For example, some users may lost
large data sets.
> h3. Solution
> In default, 'DROP TABLE' should not remove a data directory. -, and we need to add a
config property 'tajo.command.drop_table.data_removal' for those who want to change the behavior
of 'drop table'.- In addition, Tajo should provide 'DROP TABLE table_name PURGE'  for removing
all data.



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