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https://issues.apache.org/jira/browse/TAJO-570?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hyunsik Choi updated TAJO-570:
------------------------------

    Attachment: TAJO-570.patch

> InvalidOperationException in outer join with constant values
> ------------------------------------------------------------
>
>                 Key: TAJO-570
>                 URL: https://issues.apache.org/jira/browse/TAJO-570
>             Project: Tajo
>          Issue Type: Bug
>          Components: planner/optimizer
>            Reporter: Hyunsik Choi
>            Assignee: Hyunsik Choi
>             Fix For: 0.8-incubating
>
>         Attachments: TAJO-570.patch
>
>
> {code}
> select 
>   a.name, 
>   1::FLOAT, 
>   max_id 
> from table1 a
> left outer join
>  (select id, max(type) as max_id from table1 group by id) b
>  on a.id = b.id
> {code}
> The above case causes the following error:
> {code}
> 2014-01-29 14:37:35,419 ERROR worker.Task (Task.java:run(378)) - 
> org.apache.tajo.datum.exception.InvalidOperationException: Cannot equivalent 
> check: TEXT and INT4
>         at org.apache.tajo.datum.TextDatum.equalsTo(TextDatum.java:137)
>         at org.apache.tajo.engine.eval.BinaryEval.eval(BinaryEval.java:134)
>         at 
> org.apache.tajo.engine.planner.physical.HashLeftOuterJoinExec.next(HashLeftOuterJoinExec.java:144)
>         at 
> org.apache.tajo.engine.planner.physical.HashShuffleFileWriteExec.next(HashShuffleFileWriteExec.java:117)
>         at org.apache.tajo.worker.Task.run(Task.java:370)
>         at org.apache.tajo.worker.TaskRunner$1.run(TaskRunner.java:392)
>         at java.lang.Thread.run(Thread.java:662)
> {code}



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