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https://issues.apache.org/jira/browse/HIVE-6012?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14194344#comment-14194344
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Lefty Leverenz commented on HIVE-6012:
--------------------------------------
Review request: *hive.compat* is documented in the wiki and needs to be
reviewed carefully. For example, does the parameter affect other operations
besides division of ints?
* [Configuration Properties -- hive.compat |
https://cwiki.apache.org/confluence/display/Hive/Configuration+Properties#ConfigurationProperties-hive.compat]
Still to come (pending answer to question above): documenting *hive.compat* in
the table of arithmetic operators:
* [Hive Operators and UDFs -- Arithmetic Operators |
https://cwiki.apache.org/confluence/display/Hive/LanguageManual+UDF#LanguageManualUDF-ArithmeticOperators]
> restore backward compatibility of arithmetic operations
> -------------------------------------------------------
>
> Key: HIVE-6012
> URL: https://issues.apache.org/jira/browse/HIVE-6012
> Project: Hive
> Issue Type: Bug
> Components: Query Processor
> Affects Versions: 0.13.0
> Reporter: Thejas M Nair
> Assignee: Jason Dere
> Fix For: 0.13.0
>
> Attachments: HIVE-6012.1.patch, HIVE-6012.2.patch, HIVE-6012.3.patch,
> HIVE-6012.4.patch, HIVE-6012.5.patch, HIVE-6012.6.patch
>
>
> HIVE-5356 changed the behavior of some of the arithmetic operations, and the
> change is not backward compatible, as pointed out in this [jira
> comment|https://issues.apache.org/jira/browse/HIVE-5356?focusedCommentId=13813398&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13813398]
> {code}
> int / int => decimal
> float / float => double
> float * float => double
> float + float => double
> {code}
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