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From "Alexander Pivovarov (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-10641) create CRC32 UDF
Date Fri, 15 May 2015 23:56:59 GMT

    [ https://issues.apache.org/jira/browse/HIVE-10641?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14546402#comment-14546402
] 

Alexander Pivovarov commented on HIVE-10641:
--------------------------------------------

Added the function description to Misc Functions https://cwiki.apache.org/confluence/display/Hive/LanguageManual+UDF#LanguageManualUDF-Misc.Functions

> create CRC32 UDF
> ----------------
>
>                 Key: HIVE-10641
>                 URL: https://issues.apache.org/jira/browse/HIVE-10641
>             Project: Hive
>          Issue Type: Improvement
>          Components: UDF
>            Reporter: Alexander Pivovarov
>            Assignee: Alexander Pivovarov
>             Fix For: 1.3.0
>
>         Attachments: HIVE-10641.1.patch, HIVE-10641.2.patch
>
>
> CRC32 computes a cyclic redundancy check value for string or binary argument and returns
bigint value. The result is NULL if the argument is NULL.
> MySQL has similar function https://dev.mysql.com/doc/refman/5.0/en/mathematical-functions.html#function_crc32



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