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From "Gunther Hagleitner (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-2693) Add DECIMAL data type
Date Sun, 13 Jan 2013 05:42:13 GMT

    [ https://issues.apache.org/jira/browse/HIVE-2693?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13552145#comment-13552145
] 

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

I don't think ceil/floor should return long. If the decimal is larger than the max long value
it will result in truncation and return an incorrect result, which isn't necessary if we stay
in the same type. As far as compatibility goes: Judging from the docs MySQL just promises
that exact-value goes to an exact-value type and floating point to floating point. Returning
decimal would be in line with this. Oracle/SQL Server stay in the same datatype.
                
> 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-2693-12-SortableSerDe.patch, HIVE-2693-13.patch, HIVE-2693-14.patch,
HIVE-2693-15.patch, HIVE-2693-16.patch, HIVE-2693-17.patch, HIVE-2693-18.patch, HIVE-2693-19.patch,
HIVE-2693-1.patch.txt, HIVE-2693-20.patch, HIVE-2693-21.patch, HIVE-2693-22.patch, HIVE-2693-all.patch,
HIVE-2693.D7683.1.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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