title: How to return hash_plan_value from PLAN_TABLE?
body: <p>I need to get the hash_plan_value automatically from a query plan in Oracle. 
  I know that I can see it when I execute EXPLAIN PLAN for "My Query" and then 
  <code>SELECT PLAN_TABLE_OUTPUT FROM TABLE(DBMS_XPLAN.DISPLAY())</code> shows me the whole plan.</p>
  
  <p>But my point is that I don't find it in the columns of PLAN_TABLE.
  For example I can have COST, CARDINALITY and BYTES using SELECT COST,CARDINALITY, BYTES FROM PLAN_TABLE  is there a way to get the PLAN_HASH_VALUE as well ? I mean since it's displayed it's there but I don't know where.
  I hope I was clear enough ..</p>