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From "DaeMyung Kang (JIRA)" <j...@apache.org>
Subject [jira] [Created] (TAJO-397) Implement sign function
Date Sun, 08 Dec 2013 03:15:35 GMT
DaeMyung Kang created TAJO-397:
----------------------------------

             Summary: Implement sign function
                 Key: TAJO-397
                 URL: https://issues.apache.org/jira/browse/TAJO-397
             Project: Tajo
          Issue Type: Sub-task
          Components: operator/function/udf
            Reporter: DaeMyung Kang
            Assignee: DaeMyung Kang
            Priority: Minor
         Attachments: TAJO-397.patch

float8 sign(float8)

if value is greater than 0 return 1.0
if value is equals to 0 return 0.0
if value is less than 0 return -1.0




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