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From "Hive QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-5565) Limit Hive decimal type maximum precision and scale to 38
Date Fri, 15 Nov 2013 23:31:24 GMT

    [ https://issues.apache.org/jira/browse/HIVE-5565?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13824240#comment-13824240
] 

Hive QA commented on HIVE-5565:
-------------------------------



{color:green}Overall{color}: +1 all checks pass

Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12613190/HIVE-5565.1.patch

{color:green}SUCCESS:{color} +1 4613 tests passed

Test results: http://bigtop01.cloudera.org:8080/job/PreCommit-HIVE-Build/319/testReport
Console output: http://bigtop01.cloudera.org:8080/job/PreCommit-HIVE-Build/319/console

Messages:
{noformat}
Executing org.apache.hive.ptest.execution.PrepPhase
Executing org.apache.hive.ptest.execution.ExecutionPhase
Executing org.apache.hive.ptest.execution.ReportingPhase
{noformat}

This message is automatically generated.

ATTACHMENT ID: 12613190

> Limit Hive decimal type maximum precision and scale to 38
> ---------------------------------------------------------
>
>                 Key: HIVE-5565
>                 URL: https://issues.apache.org/jira/browse/HIVE-5565
>             Project: Hive
>          Issue Type: Task
>          Components: Types
>    Affects Versions: 0.13.0
>            Reporter: Xuefu Zhang
>            Assignee: Xuefu Zhang
>         Attachments: HIVE-5565.1.patch, HIVE-5565.patch
>
>
> With HIVE-3976, the maximum precision is set to 65, and maximum scale is to 30. After
discussing with several folks in the community, it's determined that 38 as a maximum for both
precision and scale are probably sufficient, in addition to the potential performance boost
that might become possible to some implementation.
> This task is to make such a change. The change is expected to be trivial, but it may
impact many test cases. The reason for a separate JIRA is that patch in HIVE-3976 is already
in a good shape. Rather than destabilizing a bigger patch, a dedicate patch will facilitates
both reviews.
> The wiki document will be updated shortly.



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