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From "Lefty Leverenz (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-9402) Create GREATEST and LEAST udf
Date Sat, 24 Jan 2015 03:30:34 GMT

    [ https://issues.apache.org/jira/browse/HIVE-9402?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14290412#comment-14290412
] 

Lefty Leverenz commented on HIVE-9402:
--------------------------------------

Doc note:  GREATEST and LEAST should be documented in the "Conditional Functions" section
of the UDFs doc, with version information and a link to this issue.

* [Hive Operators and UDFs -- Conditional Functions | https://cwiki.apache.org/confluence/display/Hive/LanguageManual+UDF#LanguageManualUDF-ConditionalFunctions]

> Create GREATEST and LEAST udf
> -----------------------------
>
>                 Key: HIVE-9402
>                 URL: https://issues.apache.org/jira/browse/HIVE-9402
>             Project: Hive
>          Issue Type: Task
>          Components: UDF
>            Reporter: Alexander Pivovarov
>            Assignee: Alexander Pivovarov
>              Labels: TODOC15
>             Fix For: 0.15.0
>
>         Attachments: HIVE-9402.1.patch, HIVE-9402.2.patch, HIVE-9402.3.patch, HIVE-9402.4.patch,
HIVE-9402.4.patch, HIVE-9402.5.patch, HIVE-9402.5.patch, HIVE-9402.6.patch, HIVE-9402.7.patch
>
>
> GREATEST function returns the greatest value in a list of values
> Signature: T greatest(T v1, T v2, ...)
> all values should be the same type (like in COALESCE)
> LEAST returns the least value in a list of values
> Signature: T least(T v1, T v2, ...)



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