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From "Gunther Hagleitner (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-2693) Add DECIMAL data type
Date Mon, 17 Dec 2012 20:00:19 GMT

    [ https://issues.apache.org/jira/browse/HIVE-2693?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13534241#comment-13534241
] 

Gunther Hagleitner commented on HIVE-2693:
------------------------------------------

Actually, that's not going to work because of the length. But for this case I don't think
we need to encode the length. Hive key will put the stuff in a byteswritable and skip the
length header on comparison.

Also <sign> has to be 1 for positive 0 for negative (to preserve order) and <scale>
has to be negated for negative numbers.

                
> Add DECIMAL data type
> ---------------------
>
>                 Key: HIVE-2693
>                 URL: https://issues.apache.org/jira/browse/HIVE-2693
>             Project: Hive
>          Issue Type: New Feature
>          Components: Query Processor, Types
>    Affects Versions: 0.10.0
>            Reporter: Carl Steinbach
>            Assignee: Prasad Mujumdar
>         Attachments: 2693_7.patch, 2693_8.patch, 2693_fix_all_tests1.patch, HIVE-2693-10.patch,
HIVE-2693-11.patch, HIVE-2693-1.patch.txt, HIVE-2693-all.patch, HIVE-2693-fix.patch, HIVE-2693.patch,
HIVE-2693-take3.patch, HIVE-2693-take4.patch
>
>
> Add support for the DECIMAL data type. HIVE-2272 (TIMESTAMP) provides a nice template
for how to do this.

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