[jira] [Created] (DRILL-2441) Throw unsupported error message in case of inequality join

["Victoria Markman (JIRA)" <ji...@apache.org>]

Victoria Markman created DRILL-2441:
---------------------------------------

             Summary: Throw unsupported error message in case of inequality join
                 Key: DRILL-2441
                 URL: https://issues.apache.org/jira/browse/DRILL-2441
             Project: Apache Drill
          Issue Type: Bug
          Components: Query Planning & Optimization
            Reporter: Victoria Markman
            Assignee: Sean Hsuan-Yi Chu


Since we don't support inequality join, the whole class of queries will throw huge page long "Can't plan exception"
This is a request to throw a nice error message that we throw in case of cartesian join in these cases as well.

{code} 
select * from t1 left outer join t2  on (t1.a1 = t2.a2 and t1.b2 <> t2.b2);
select * from t1 right outer join t2 on (t1.a1 = t2.a2 and t1.b2 <> t2.b2);
{code}

Example of an exception:
{code}
0: jdbc:drill:schema=dfs> select * from t1 inner join t2 on(t1.b1 <> t2.b2);
Query failed: UnsupportedRelOperatorException: This query cannot be planned possibly due to either a cartesian join or an inequality join
Error: exception while executing query: Failure while executing query. (state=,code=0)
{code}




--
This message was sent by Atlassian JIRA
(v6.3.4#6332)