Hyunsik Choi created TAJO-148:
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Summary: Implement UPPER(text), LOWER(text) function
Key: TAJO-148
URL: https://issues.apache.org/jira/browse/TAJO-148
Project: Tajo
Issue Type: Improvement
Reporter: Hyunsik Choi
We need to implement the below functions:
* UPPER(text) : makes an input text to be upper case.
* LOWER(text) : makes an input text to be lower case.
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