Yes, sure. Please create a runnable test case if you can. It sounds a bit improbable as you describe it.
> On Sep 22, 2016, at 8:44 AM, Miguel Oliveira <[email protected]> > wrote: > > Hi, > > I'm using the Jdbc Adapter and the SCOTT schema (emp, dept and salgrade). > > When i execute the following query (i know that the second join doesn't > make sense, but it's only to show the error): > >> SELECT count(*) FROM (SELECT count(emp.empno) `Count Emp`, dept.dname >> `Department Name` FROM Calcite.emp emp JOIN Calcite.dept dept ON emp.deptno >> = dept.deptno JOIN Calcite.salgrade salgrade ON emp.comm = salgrade.hisal >> WHERE dept.dname LIKE '%O%' GROUP BY emp.deptno, dept.dname) > > > a CastException is thrown: > "org.apache.calcite.adapter.jdbc.JdbcRules$JdbcJoin cannot be cast to > org.apache.calcite.adapter.enumerable.EnumerableRel". > > generates a plan: > >> [TABLE, #ID {PLAN=EnumerableAggregate(group=[{}], EXPR$0=[COUNT()]) >> EnumerableAggregate(group=[{2, 4}]) >> JdbcJoin(condition=[=($1, $0)], joinType=[inner]) >> JdbcProject(hisal=[$2]) >> JdbcTableScan(table=[[Calcite, salgrade]]) >> JdbcJoin(condition=[=($1, $2)], joinType=[inner]) >> JdbcProject(comm=[$6], deptno=[$7]) >> JdbcTableScan(table=[[Calcite, emp]]) >> JdbcProject(deptno=[$0], dname=[$1]) >> JdbcFilter(condition=[LIKE($1, '%O%')]) >> JdbcTableScan(table=[[Calcite, dept]]) >> , }] > > > Can i create an issue for this? > > Best regards, > Miguel.
