Как не выводить повторяющиеся поля и суммировать их ?

	/*  Stat Player in Tournament */
		public function getSportPlayerStat($id, $sport, $player_add){
		$this->filterEqual('team_id', $id);
		$this->filterEqual('tournament_id', $player_add);
		$this->joinLeft('cms_users', 's', 's.id = i.user_id');
		$this->select('s.nickname', 'user_nickname');
		$this->select('s.surname', 'user_surname');
		$this->select('s.avatar', 'user_avatar');
		$this->select('s.height', 'user_height'); 
		$this->select('s.weight', 'user_weight');		
		$this->select('s.player_number', 'user_gm_num');
		$this->joinLeft('sport_tournaments', 't', 't.id = i.tournament_id');
		$this->select('t.tournament_name', 'tm_name');
		$player_st['players_st'] = $this->get('sport_tournaments_st');
		return $player_st;	
	}

		$this->select('SUM(pts)', 'points'); // берем не просто поле points, а суммируем его в запросе
		$this->groupBy('user_id');