How do I avoid ORA-01473 when querying hierarchial on tables with VPD predicates

Question

My question is how to circumvent what seems to be a limitation i ORACLE, if at all possible. Please read on.
When using VPD (Virtual Private Database) predictaes on a table and performing a hierarchial query on that table I get the following error message:
ORA-01473: cannot have subqueries in CONNECT BY CLAUSE
My query may look like the folwing:
SELECT FIELD
FROM TABLE
START WITH ID = 1
CONNECT BY PRIOR ID = PARENT
As my predicate contains a query in it self, I suspect that the implicit augmentation of the predicate results in a query that looks like:
SELECT FIELD
FROM TABLE
START WITH ID = 1
CONNECT BY PRIOR ID = PARENT
AND OWNER IN (SELECT OWNER FROM TABLE2 WHERE ...)
at least, when executing a query like the one above (with the explicit predicate) I get the identical error message.
So my question is:
Do you know of any way to force the predicate to augment itslef onto the WHERE-clause? I would be perfectly happy with a query that looks like:
SELECT FIELD
FROM TABLE
START WITH ID = 1
CONNECT BY PRIOR ID = PARENT
WHERE OWNER IN (SELECT OWNER FROM TABLE2 WHERE ...)
or do you know of any fix/patch/release to ORACLE that allows you to include subqueries in the CONNECT BY-clause and eliminates the error message?

Answer 1

The WHERE clause or AND clause applies to the line directly above it. Please see the examples of valid and invalid queries below, which differ only in the placement of the WHERE or AND clause. If this is not sufficient, please provide some sample data and desired output to clarify what you need.
-- valid:
SQL> SELECT     empno,
  2            mgr,
  3            deptno
  4  FROM     emp
  5  WHERE     deptno IN
  6            (SELECT deptno
  7             FROM     dept
  8             WHERE     dname = 'RESEARCH')
  9  START WITH mgr = 7566
10  CONNECT BY PRIOR empno = mgr
11  /
     EMPNO        MGR     DEPTNO                           
      7788       7566         20                           
      7876       7788         20                           
      7902       7566         20                           
       800       7902         20                           
-- invalid:
SQL>
SQL> SELECT     empno,
  2            mgr,
  3            deptno
  4  FROM     emp
  5  START WITH mgr = 7566
  6  CONNECT BY PRIOR empno = mgr
  7  WHERE     deptno IN
  8            (SELECT deptno
  9             FROM     dept
10             WHERE     dname = 'RESEARCH')
11  /
WHERE      deptno IN
ERROR at line 7:
ORA-00933: SQL command not properly ended
-- valid:
SQL>
SQL> SELECT     empno,
  2            mgr,
  3            deptno
  4  FROM     emp
  5  START WITH mgr = 7566
  6  AND     deptno IN
  7            (SELECT deptno
  8             FROM     dept
  9             WHERE     dname = 'RESEARCH')
10  CONNECT BY PRIOR empno = mgr
11  /
     EMPNO        MGR     DEPTNO                           
      7788       7566         20                           
      7876       7788         20                           
      7902       7566         20                           
       800       7902         20                           
-- invalid:
SQL>
SQL> SELECT     empno,
  2            mgr,
  3            deptno
  4  FROM     emp
  5  START WITH mgr = 7566
  6  CONNECT BY PRIOR empno = mgr
  7  AND     deptno IN
  8            (SELECT deptno
  9             FROM     dept
10             WHERE     dname = 'RESEARCH')
11  /
FROM       emp
ERROR at line 4:
ORA-01473: cannot have subqueries in CONNECT BY clause