docs: public int addPTableOwner(ThinPhysicalTableOwner pTableOwner)
      {
          if (pTableOwner != null)
          {
              m_lTimeLastUsed = System.currentTimeMillis();
              m_setPTableOwners.add(pTableOwner);
              pTableOwner.setPTable(this);
          }
          return m_setPTableOwners.size();
      }