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From "Hyunsik Choi (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (TAJO-177) Call by reference bug in MergeJoinExec
Date Tue, 10 Sep 2013 13:25:52 GMT

    [ https://issues.apache.org/jira/browse/TAJO-177?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13763035#comment-13763035
] 

Hyunsik Choi commented on TAJO-177:
-----------------------------------

This bug seems to relate to TAJO-175. Thank you for nice finding.

{noformat}
[INFO] -------------------------------------------------------------
[ERROR] /home/hyunsik/Code/tajo/tajo/tajo-core/tajo-core-storage/src/main/java/org/apache/tajo/storage/FrameTuple.java:[36,7]
error: FrameTuple is not abstract and does not override abstract method clone() in Tuple
{noformat}

But, clone() method need to be add to FrameTuple too.


                
> Call by reference bug in MergeJoinExec
> --------------------------------------
>
>                 Key: TAJO-177
>                 URL: https://issues.apache.org/jira/browse/TAJO-177
>             Project: Tajo
>          Issue Type: Bug
>          Components: physical operator
>            Reporter: Jihoon Son
>            Assignee: Jihoon Son
>             Fix For: 0.2-incubating
>
>         Attachments: TAJO-177.patch
>
>
> While comparing and storing tuples in a list temporally, their copies should be stored.
> This issue includes following works
> * Create a function clone() in Tuple and VTuple
> * Change from using call by reference to using call by value

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