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https://issues.apache.org/jira/browse/TAJO-1448?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14383534#comment-14383534
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Seungun Choe commented on TAJO-1448:
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nth_value is not yet fixed.
It's my mistake, sorry.
> Implement nth_value window function.
> -------------------------------------
>
> Key: TAJO-1448
> URL: https://issues.apache.org/jira/browse/TAJO-1448
> Project: Tajo
> Issue Type: New Feature
> Reporter: Seungun Choe
> Assignee: Seungun Choe
> Priority: Minor
>
> Function : nth_value(value any, nth integer)
> Return Type : same type as value
> Description : returns value evaluated at the row that is the nth row of the
> window frame (counting from 1); null if no such ro
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