docs: @Override
      public void setSubqueryNode(AbstractPlanNode subqueryNode) {
          assert(subqueryNode != null);
          m_subqueryNode = subqueryNode;
          if (m_subquery != null && m_subquery.getBestCostPlan() != null) {
              m_subquery.getBestCostPlan().rootPlanGraph = m_subqueryNode;
          }
          resetSubqueryNodeId();
      }