Hyunsik Choi created TAJO-206:
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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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