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https://issues.apache.org/jira/browse/TAJO-1403?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14366770#comment-14366770
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Tajo QA commented on TAJO-1403:
-------------------------------

{color:red}*-1 overall.*{color}  Here are the results of testing the latest 
attachment 
  http://issues.apache.org/jira/secure/attachment/12705288/TAJO-1403.patch
  against master revision release-0.9.0-rc0-206-g82d44af.

    {color:green}+1 @author.{color}  The patch does not contain any @author 
tags.

    {color:green}+1 tests included.{color}  The patch appears to include 1 new 
or modified test files.

    {color:green}+1 javac.{color}  The applied patch does not increase the 
total number of javac compiler warnings.

    {color:green}+1 javadoc.{color}  The applied patch does not increase the 
total number of javadoc warnings.

    {color:green}+1 checkstyle.{color}  The patch generated 0 code style errors.

    {color:red}-1 findbugs.{color}  The patch appears to introduce 58 new 
Findbugs (version 2.0.3) warnings.

    {color:green}+1 release audit.{color}  The applied patch does not increase 
the total number of release audit warnings.

    {color:red}-1 core tests.{color}  The patch failed these unit tests in 
tajo-core tajo-plan tajo-storage/tajo-storage-hdfs: 
                  org.apache.tajo.engine.query.TestCaseByCases

Test results: 
https://builds.apache.org/job/PreCommit-TAJO-Build/618//testReport/
Findbugs warnings: 
https://builds.apache.org/job/PreCommit-TAJO-Build/618//artifact/incubator-tajo/patchprocess/newPatchFindbugsWarningstajo-core.html
Findbugs warnings: 
https://builds.apache.org/job/PreCommit-TAJO-Build/618//artifact/incubator-tajo/patchprocess/newPatchFindbugsWarningstajo-plan.html
Findbugs warnings: 
https://builds.apache.org/job/PreCommit-TAJO-Build/618//artifact/incubator-tajo/patchprocess/newPatchFindbugsWarningstajo-storage-hdfs.html
Console output: https://builds.apache.org/job/PreCommit-TAJO-Build/618//console

This message is automatically generated.

> Improve 'Simple Query' with only partition columns and constant values
> ----------------------------------------------------------------------
>
>                 Key: TAJO-1403
>                 URL: https://issues.apache.org/jira/browse/TAJO-1403
>             Project: Tajo
>          Issue Type: Improvement
>            Reporter: Dongjoon Hyun
>            Assignee: Dongjoon Hyun
>             Fix For: 0.11.0
>
>         Attachments: TAJO-1403.patch
>
>
> Tajo shows a very fast response for a simple query ( 
> https://cwiki.apache.org/confluence/display/TAJO/Simple+Query+and+Forwarded+Query)
>  like the followings.
> {code:sql}
> select * from t1 limit 10;
> {code}
> However, in many cases, tables have partitions. 
> {code:sql}
> create external table t1(id int) using csv with ('csvfile.delimiter'='|') 
> partition by column(dt text) location '/data';
> select * from t1 where dt='2015-03-15' limit 10;
> {code}
> If all predicates in WHERE consist of partition columns and 'EQUAL' 
> predicates with constant values, I think Tajo can handle these cases very 
> fast. 
> This kind of queries is very popular for DevOps users and simple ETL apps.



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