text: DROP INDEX IF EXISTS m_hu_reservation_c_orderlineso_id;
  DROP INDEX IF EXISTS m_hu_reservation_c_projectline_id;
  
  CREATE INDEX m_hu_reservation_c_orderlineso_id ON m_hu_reservation (c_orderlineso_id) ;
  CREATE INDEX m_hu_reservation_c_projectline_id ON m_hu_reservation (c_projectline_id, c_project_id);
  
  