Allow hive command output to be escaped
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                 Key: HIVE-692
                 URL: https://issues.apache.org/jira/browse/HIVE-692
             Project: Hadoop Hive
          Issue Type: Improvement
            Reporter: Zheng Shao


If the column value contains "\t" or "\n", it's hard for users to see what the 
actual value is.

A new option "hive.output.escape" should be added. The default is "none", which 
is the same as the current behavior.

Users can do "set hive.output.escape=mysql;" to allow mysql escaping:
http://dev.mysql.com/doc/refman/5.1/en/mysql-command-options.html#option_mysql_raw


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