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From "Sahil Takiar (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-15982) Support the width_bucket function
Date Sun, 07 May 2017 18:43:04 GMT

    [ https://issues.apache.org/jira/browse/HIVE-15982?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15999988#comment-15999988
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Sahil Takiar commented on HIVE-15982:
-------------------------------------

Documented this under: https://cwiki.apache.org/confluence/display/Hive/LanguageManual+UDF#LanguageManualUDF-MathematicalFunctions

> Support the width_bucket function
> ---------------------------------
>
>                 Key: HIVE-15982
>                 URL: https://issues.apache.org/jira/browse/HIVE-15982
>             Project: Hive
>          Issue Type: Sub-task
>          Components: SQL
>            Reporter: Carter Shanklin
>            Assignee: Sahil Takiar
>              Labels: TODOC3.0
>             Fix For: 3.0.0
>
>         Attachments: HIVE-15982.1.patch, HIVE-15982.2.patch, HIVE-15982.3.patch, HIVE-15982.4.patch,
HIVE-15982.5.patch, HIVE-15982.6.patch
>
>
> Support the width_bucket(wbo, wbb1, wbb2, wbc) which returns an integer between 0 and
wbc+1 by mapping wbo into the ith equally sized bucket made by dividing wbb1 and wbb2 into
equally sized regions. If wbo < wbb1, return 1, if wbo > wbb2 return wbc+1. Reference:
SQL standard section 4.4.



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