[jira] [Created] (CALCITE-1799) OR IN Subquery conversion wrong

["Gian Merlino (JIRA)" <ji...@apache.org>]

Gian Merlino created CALCITE-1799:
-------------------------------------

             Summary: OR IN Subquery conversion wrong
                 Key: CALCITE-1799
                 URL: https://issues.apache.org/jira/browse/CALCITE-1799
             Project: Calcite
          Issue Type: Bug
          Components: core
    Affects Versions: 1.12.0
            Reporter: Gian Merlino
            Assignee: Julian Hyde


This query:

{code}
select * from emp where deptno = 10 or deptno in (
    select dept.deptno from dept where deptno < 5)
{code}

Is converted to this by SqlToRelConverter:

{code}
LogicalProject(EMPNO=[$0], ENAME=[$1], JOB=[$2], MGR=[$3], HIREDATE=[$4], SAL=[$5], COMM=[$6], DEPTNO=[$7], SLACKER=[$8])
  LogicalFilter(condition=[OR(=($7, 10), true)])
    LogicalJoin(condition=[=($7, $9)], joinType=[inner])
      LogicalTableScan(table=[[CATALOG, SALES, EMP]])
      LogicalAggregate(group=[{0}])
        LogicalProject(DEPTNO=[$0])
          LogicalFilter(condition=[<($0, 5)])
            LogicalTableScan(table=[[CATALOG, SALES, DEPT]])
{code}

But that's not right. {code}LogicalFilter(condition=[OR(=($7, 10), true)]){code} is always true and is in the wrong place anyway (it's applied after the inner join, where all the deptno = 10 records have already been removed).



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