def joinTwoPaths(self, id1, id2):
     TablePathAdaptator.joinTwoPaths(self, id1, id2)
     if id1 < id2:
         newId = id1
         oldId = id2
     else:
         newId = id2
         oldId = id1
     sqlCmd = 'UPDATE %s SET path=%d WHERE path=%d' % (self._table_idx, newId, oldId)
     self._iDb.execute(sqlCmd)
     return newId