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From "Hive QA (JIRA)" <>
Subject [jira] [Commented] (HIVE-12063) Pad Decimal numbers with trailing zeros to the scale of the column
Date Wed, 04 Nov 2015 02:15:27 GMT


Hive QA commented on HIVE-12063:

Here are the results of testing the latest attachment:

{color:green}SUCCESS:{color} +1 due to 4 test(s) being added or modified.

{color:red}ERROR:{color} -1 due to 6 failed/errored test(s), 9768 tests executed
*Failed tests:*

Test results:
Console output:
Test logs:

Executing org.apache.hive.ptest.execution.TestCheckPhase
Executing org.apache.hive.ptest.execution.PrepPhase
Executing org.apache.hive.ptest.execution.ExecutionPhase
Executing org.apache.hive.ptest.execution.ReportingPhase
Tests exited with: TestsFailedException: 6 tests failed

This message is automatically generated.

ATTACHMENT ID: 12770377 - PreCommit-HIVE-TRUNK-Build

> Pad Decimal numbers with trailing zeros to the scale of the column
> ------------------------------------------------------------------
>                 Key: HIVE-12063
>                 URL:
>             Project: Hive
>          Issue Type: Improvement
>          Components: Types
>    Affects Versions: 0.14.0, 1.0.0, 1.2.0, 1.1.0, 0.13
>            Reporter: Xuefu Zhang
>            Assignee: Xuefu Zhang
>         Attachments: HIVE-12063.1.patch, HIVE-12063.2.patch, HIVE-12063.3.patch, HIVE-12063.patch
> HIVE-7373 was to address the problems of trimming tailing zeros by Hive, which caused
many problems including treating 0.0, 0.00 and so on as 0, which has different precision/scale.
Please refer to HIVE-7373 description. However, HIVE-7373 was reverted by HIVE-8745 while
the underlying problems remained. HIVE-11835 was resolved recently to address one of the problems,
where 0.0, 0.00, and so on cannot be read into decimal(1,1).
> However, HIVE-11835 didn't address the problem of showing as 0 in query result for any
decimal values such as 0.0, 0.00, etc. This causes confusion as 0 and 0.0 have different precision/scale
than 0.
> The proposal here is to pad zeros for query result to the type's scale. This not only
removes the confusion described above, but also aligns with many other DBs. Internal decimal
number representation doesn't change, however.

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