[jira] [Created] (TAJO-891) Complex join conditions with UNION or inline should be supported

["Hyunsik Choi (JIRA)" <ji...@apache.org>]

Hyunsik Choi created TAJO-891:
---------------------------------

             Summary: Complex join conditions with UNION or inline should be supported
                 Key: TAJO-891
                 URL: https://issues.apache.org/jira/browse/TAJO-891
             Project: Tajo
          Issue Type: Bug
          Components: distributed query plan, planner/optimizer
            Reporter: Hyunsik Choi
            Assignee: Hyunsik Choi
             Fix For: 0.9.0


Please see the following two example queries. Currently, they will cause planning exception. This patch fixes the bugs.
{code}
select
  n1.n_nationkey,
  substr(n1.n_name, 1, 4) name1,
  substr(n2.n_name, 1, 4) name2
from nation n1 join (select * from nation) n2 on substr(n1.n_name, 1, 4) = substr(n2.n_name, 1, 4)
order by n1.n_nationkey;
{code}

{code}
select
  n1.n_nationkey,
  substr(n1.n_name, 1, 4) name1,
  substr(n2.n_name, 1, 4) name2
from nation n1 join (select * from nation union select * from nation) n2 on substr(n1.n_name, 1, 4) = substr(n2.n_name, 1, 4)
order by n1.n_nationkey;
{code}



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