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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (TAJO-391) Change the default type of real values from FLOAT4 to FLOAT8 when parsing the user queries
Date Sat, 07 Dec 2013 21:24:35 GMT

    [ https://issues.apache.org/jira/browse/TAJO-391?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13842331#comment-13842331
] 

Hudson commented on TAJO-391:
-----------------------------

FAILURE: Integrated in Tajo-trunk-postcommit #594 (See [https://builds.apache.org/job/Tajo-trunk-postcommit/594/])
TAJO-391: Change the default type of real values from FLOAT4 to FLOAT8 when parsing the user
queries. (DaeMyung Kang via jihoon) (jihoonson: https://git-wip-us.apache.org/repos/asf?p=incubator-tajo.git&a=commit&h=b444061e2739f71de6d5ce39c2b8bc60b2fa0d9b)
* tajo-core/tajo-core-backend/src/test/java/org/apache/tajo/engine/query/TestInsertQuery.java
* tajo-project/src/site/markdown/tajo-0.2.0-doc.md
* tajo-core/tajo-core-backend/src/main/java/org/apache/tajo/engine/planner/LogicalPlanner.java
* tajo-core/tajo-core-backend/src/test/java/org/apache/tajo/engine/function/TestMathFunctions.java
* CHANGES.txt
* tajo-project/src/site/markdown/tajo-0.8.0-doc.md
* tajo-core/tajo-core-backend/src/main/java/org/apache/tajo/benchmark/TPCH.java


> Change the default type of real values from FLOAT4 to FLOAT8 when parsing the user queries
> ------------------------------------------------------------------------------------------
>
>                 Key: TAJO-391
>                 URL: https://issues.apache.org/jira/browse/TAJO-391
>             Project: Tajo
>          Issue Type: Improvement
>          Components: operator/function/udf
>            Reporter: DaeMyung Kang
>            Assignee: DaeMyung Kang
>            Priority: Minor
>             Fix For: 0.8-incubating
>
>         Attachments: TAJO-391.patch
>
>
> FLOAT4 is default parsed float type in tajo.
> but it can cause some trobles when we use it as FLOAT8.
> for examples.
> 0.4(f) will changed to 0.40000000000005(d)
> so it cause different result from java.Math functions.



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