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https://issues.apache.org/jira/browse/TAJO-394?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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DaeMyung Kang updated TAJO-394:
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Attachment: TAJO-394.patch
Please review this.
until now, I know parse minus value cauese error.
(so I couldn't make minus value test.)
> Implement abs function
> ----------------------
>
> Key: TAJO-394
> URL: https://issues.apache.org/jira/browse/TAJO-394
> Project: Tajo
> Issue Type: Sub-task
> Components: operator/function/udf
> Reporter: DaeMyung Kang
> Assignee: DaeMyung Kang
> Priority: Minor
> Attachments: TAJO-394.patch
>
>
> abs(-1) ===> 1
> abs(1) ===> 1
> abs(1.0) ===> 1.0
> abs(-1.0) ===> 1.0
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