SphinxClient::SetGroupDistinct PHP Méthode

    function SetGroupDistinct($attribute)
    {
        assert(is_string($attribute));
        $this->_groupdistinct = $attribute;
    }

 protected function applyCriteria(ESphinxSearchCriteria $criteria)
 {
     $this->applyMatchMode($criteria->matchMode);
     $this->applyRankMode($criteria);
     if ($criteria->sortMode == ESphinxSort::EXTENDED) {
         $orders = '';
         if ($orderArray = $criteria->getOrders()) {
             $fields = array();
             foreach ($orderArray as $attr => $type) {
                 $fields[] = $attr . ' ' . $type;
             }
             $orders = implode(', ', $fields);
         }
         $this->applySortMode($criteria->sortMode, $orders);
     } else {
         $this->applySortMode($criteria->sortMode, $criteria->getSortBy());
     }
     // apply select
     if (strlen($criteria->select)) {
         $this->sphinxClient->SetSelect($criteria->select);
     }
     // apply limit
     if ($criteria->limit) {
         $this->sphinxClient->SetLimits($criteria->offset, $criteria->limit, $criteria->maxMatches, $criteria->cutOff);
     }
     // apply group
     if ($criteria->groupBy) {
         $this->sphinxClient->SetGroupBy($criteria->groupBy, $criteria->groupByFunc, $criteria->groupBySort);
     }
     if ($criteria->groupDistinct) {
         $this->sphinxClient->SetGroupDistinct($criteria->groupDistinct);
     }
     // apply id range
     if ($criteria->getIsIdRangeSetted()) {
         $this->sphinxClient->SetIDRange($criteria->getMinId(), $criteria->getMaxId());
     }
     // apply weights
     $this->applyFieldWeights($criteria->getFieldWeights());
     $this->applyIndexWeights($criteria->getIndexWeights());
     $this->applyFilters($criteria->getFilters());
     $this->applyRanges($criteria->getRangeFilters());
     $this->sphinxClient->SetMaxQueryTime($criteria->queryTimeout !== null ? $criteria->queryTimeout : $this->_queryTimeout);
     if (VER_COMMAND_SEARCH >= 0x11d) {
         $this->applyOptions($criteria);
     }
 }