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https://issues.apache.org/jira/browse/SQOOP-1171?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14013507#comment-14013507
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Kostiantyn Kudriavtsev commented on SQOOP-1171:
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Hi sudhir, thank you for your initiative. As you can see from the history, the 
test is required to make it merged, unfortunately I can't find time to do it, 
because the test seems very complicated (it's completely new test in project 
and quite difficult itself). So, it will be great if you provide requited code 
changes. thanks!

> Add possibility to specify columns list to export in required table.
> --------------------------------------------------------------------
>
>                 Key: SQOOP-1171
>                 URL: https://issues.apache.org/jira/browse/SQOOP-1171
>             Project: Sqoop
>          Issue Type: Bug
>            Reporter: Kostiantyn Kudriavtsev
>              Labels: patch
>         Attachments: columns_to_export.patch
>
>   Original Estimate: 24h
>  Remaining Estimate: 24h
>
> Add possibility to specify columns list to export in required table.
> For example, your target table contains the following fields: id, message, 
> country, dtx. 'id' is autoincrement field and 'dtx' set by trigger. So, you 
> have only two columns on HDFS (message and country). Now you can set them w/ 
> option '--columns message, country' during export



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