Seungun Choe created TAJO-639:
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Summary: Implements function 'to_char'
Key: TAJO-639
URL: https://issues.apache.org/jira/browse/TAJO-639
Project: Tajo
Issue Type: New Feature
Reporter: Seungun Choe
Priority: Minor
Tajo has already to_char(timestamp, text)
But, someone need the others type input parameters.
to_char(int, text) / convert integer to string / to_char(125, '999')
to_char(double precision, text) / convert real/double precision to string /
to_char(125.8::real, '999D9')
to_char(numeric, text) / convert numeric to string / to_char(-125.8, '999D99S')
These are returned text type output parameter.
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