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Posted to dev@tajo.apache.org by "DaeMyung Kang (JIRA)" <ji...@apache.org> on 2013/12/08 04:15:35 UTC
[jira] [Updated] (TAJO-397) Implement sign function
[ https://issues.apache.org/jira/browse/TAJO-397?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
DaeMyung Kang updated TAJO-397:
-------------------------------
Attachment: TAJO-397.patch
please review this.
> 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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