Hyoungjun Kim created TAJO-867:
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Summary: 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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