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From "Alexander Pivovarov (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-10485) Create md5 UDF
Date Tue, 28 Apr 2015 18:18:07 GMT

     [ https://issues.apache.org/jira/browse/HIVE-10485?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Alexander Pivovarov updated HIVE-10485:
---------------------------------------
    Attachment: HIVE-10485.3.patch

patch #3.
- support hadoop-1.x API  (It does not have BytesWritable.copyBytes())

> Create md5 UDF
> --------------
>
>                 Key: HIVE-10485
>                 URL: https://issues.apache.org/jira/browse/HIVE-10485
>             Project: Hive
>          Issue Type: Task
>          Components: UDF
>            Reporter: Alexander Pivovarov
>            Assignee: Alexander Pivovarov
>         Attachments: HIVE-10485.1.patch, HIVE-10485.2.patch, HIVE-10485.3.patch
>
>
> MD5(str)
> Calculates an MD5 128-bit checksum for the string. The value is returned as a string
of 32 hex digits, or NULL if the argument was NULL. The return value can, for example, be
used as a hash key.
> Example:
> {code}
> SELECT MD5('udf_md5');
> 'ce62ef0d2d27dc37b6d488b92f4b24fd'
> {code}
> online md5 generator: http://www.md5.cz/
> MySQL has md5 function: https://dev.mysql.com/doc/refman/5.5/en/encryption-functions.html#function_md5
> PostgreSQL also has md5 function: http://www.postgresql.org/docs/9.1/static/functions-string.html



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