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From "Bejoy KS (JIRA)" <j...@apache.org>
Subject [jira] [Created] (SQOOP-313) Multiple column names to be included in --update-key argument with SQOOP export (update)
Date Wed, 10 Aug 2011 10:08:27 GMT
Multiple column names to be included in --update-key argument with SQOOP export (update)
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                 Key: SQOOP-313
                 URL: https://issues.apache.org/jira/browse/SQOOP-313
             Project: Sqoop
          Issue Type: New Feature
            Reporter: Bejoy KS


Currently the --update-key argument in SQOOP export (Updates) supports only one column name.
But in most real time scenarios the target db table would have composite primary key hence
in the SQL generated by SQOOP we may have to include more than one condition separated by
AND in the WHERE clauses, ie the db UPDATE query generated should be like 
UPDATE ....  SET ... WHERE PKColumn1 = '<value>' AND PKColumn2= '<value>' AND
...
For this we need to modify --update-key argument to accomodate  more that one column name
 which is separated using some separator like comma.

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