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https://issues.apache.org/jira/browse/TAJO-867?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14045529#comment-14045529
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ASF GitHub Bot commented on TAJO-867:
-------------------------------------
Github user asfgit closed the pull request at:
https://github.com/apache/tajo/pull/35
> OUTER JOIN with empty result subquery produces a wrong result.
> ---------------------------------------------------------------
>
> Key: TAJO-867
> URL: https://issues.apache.org/jira/browse/TAJO-867
> Project: Tajo
> Issue Type: Bug
> Reporter: Hyoungjun Kim
> Assignee: Hyoungjun Kim
> Priority: Minor
>
> In the following query if a subquery has no data, a Execution block for final
> outer join has only one task and final result is wrong.
> {code:sql}
> select *
> from table1 a
> outer join (select * from table2 where code = '1') b
> on a.id = b.id
> {code}
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