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https://issues.apache.org/jira/browse/TAJO-308?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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hyoungjunkim updated TAJO-308:
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Attachment: TAJO-308_1.patch
Thank you for the review.
I've attached second patch that returns a zero if input datum is null.
> Implement length(string) function
> ---------------------------------
>
> Key: TAJO-308
> URL: https://issues.apache.org/jira/browse/TAJO-308
> Project: Tajo
> Issue Type: Improvement
> Components: operator/function/udf
> Reporter: Hyunsik Choi
> Assignee: hyoungjunkim
> Priority: Minor
> Labels: newbie
> Attachments: TAJO-308.patch, TAJO-308_1.patch
>
>
> length(string) function returns the number of characters in string.
> {code}
> int length(string)
> {code}
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