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From "Gunther Hagleitner (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-2693) Add DECIMAL data type
Date Fri, 28 Dec 2012 09:44:15 GMT

     [ https://issues.apache.org/jira/browse/HIVE-2693?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Gunther Hagleitner updated HIVE-2693:
-------------------------------------

    Attachment: HIVE-2693-16.patch

New patch that addresses all issues in the review:

- Removed mathematical UDFs that implicitly converted to double (Log, Exp, Sqrt). Should open
new jira to provide big decimal implementations

- Fixed Ceil, Floor, Round to work with decimals with any scale

- added additional tests for UDFs

- Type conversion: Code keeps conversion rules backwards compatible now (e.g.: integer division
return double), numerical values are converted to big decimal only if needed (e.g.: one half
of a binop is already in decimal), otherwise conversion to lower types are preferred.

- Switched to mathematical equivalency in UDFToBoolean (was comparison by value + scale)

                
> 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-2693-1.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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