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From "Hyunsik Choi (JIRA)" <j...@apache.org>
Subject [jira] [Created] (TAJO-206) Implement SQL Standard String Functions
Date Wed, 25 Sep 2013 12:04:25 GMT
Hyunsik Choi created TAJO-206:

             Summary: Implement SQL Standard String Functions
                 Key: TAJO-206
                 URL: https://issues.apache.org/jira/browse/TAJO-206
             Project: Tajo
          Issue Type: New Feature
          Components: function/udf
            Reporter: Hyunsik Choi
             Fix For: 0.2-incubating

SQL standard provides various string operators and functions:
 * String concatenation ('||')
 * bit_length
 * char_length or 
 * lower
 * position
 * substring
 * trim
 * upper

We also need to include these standard functions.

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