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https://issues.apache.org/jira/browse/HIVEMALL-72?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Makoto Yui closed HIVEMALL-72.
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Resolution: Fixed
> Fix rescale UDF behavior to return range [0.0,1.0]
> --------------------------------------------------
>
> Key: HIVEMALL-72
> URL: https://issues.apache.org/jira/browse/HIVEMALL-72
> Project: Hivemall
> Issue Type: Bug
> Reporter: Makoto Yui
> Assignee: Makoto Yui
> Priority: Minor
> Labels: Bug
>
> rescale(value, min, max) should return min value when value is less than min.
> rescale(value, min, max) should return max value when value is greater than
> min.
> o Current behavior
> {code:sql}
> select rescale(4.2,1.0,3.0),rescale(-0.3, 1.0, 3.0);
> {code}
> > 1.5999999 -0.65
> o Expected behavior
> {code:sql}
> select rescale(4.2,1.0,3.0),rescale(-0.3, 1.0, 3.0);
> {code}
> > 1.0 3.0
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