[jira] [Commented] (TAJO-1232) Implicit groupby queries with LIMIT lead to wrong results.

["Tajo QA (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/TAJO-1232?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14251255#comment-14251255 ] 

Tajo QA commented on TAJO-1232:
-------------------------------

{color:red}*-1 overall.*{color}  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12687962/TAJO-1232.patch
  against master revision release-0.9.0-rc0-100-g5c852b7.

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

    {color:green}+1 tests included.{color}  The patch appears to include 7 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 cause Findbugs (version 2.0.3) to fail.

    {color:red}-1 release audit.{color}  The applied patch generated 541 release audit warnings.

    {color:green}+1 core tests.{color}  The patch passed unit tests in tajo-core tajo-plan.

Test results: https://builds.apache.org/job/PreCommit-TAJO-Build/548//testReport/
Release audit warnings: https://builds.apache.org/job/PreCommit-TAJO-Build/548//artifact/incubator-tajo/patchprocess/patchReleaseAuditProblems.txt
Findbugs results: https://builds.apache.org/job/PreCommit-TAJO-Build/548//findbugsResult
Console output: https://builds.apache.org/job/PreCommit-TAJO-Build/548//console

This message is automatically generated.

> Implicit groupby queries with LIMIT lead to wrong results.
> ----------------------------------------------------------
>
>                 Key: TAJO-1232
>                 URL: https://issues.apache.org/jira/browse/TAJO-1232
>             Project: Tajo
>          Issue Type: Bug
>          Components: planner/optimizer
>            Reporter: Hyunsik Choi
>            Assignee: Jihoon Son
>             Fix For: 0.10
>
>         Attachments: TAJO-1232.patch
>
>
> See the title. The following query will reproduce the problem.
> {code}
> SELECT sum(x) FROM T1 LIMIT 1;
> > 0
> {code}
> Regardless of the actual summation result, the query result always is 0.



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