NilPortugues\Sql\QueryBuilder\Manipulation\Select::isDistinct PHP Метод

    public function isDistinct()
    {
        return $this->isDistinct;
    }

 /**
  * @param Select $select
  *
  * @return string
  */
 protected function writeSelectQuery(Select $select)
 {
     $parts = ['SELECT'];
     if ($select->isDistinct()) {
         $parts[] = 'DISTINCT';
     }
     $this->writeSelectColumns($select, $parts);
     $this->writeSelectFrom($select, $parts);
     $this->writeSelectJoins($select, $parts);
     $this->writeSelectWhere($select, $parts);
     $this->writeSelectGroupBy($select, $parts);
     $this->writeSelectHaving($select, $parts);
     $this->writeSelectOrderBy($select, $parts);
     $this->writeSelectLimit($select, $parts);
     return AbstractBaseWriter::writeQueryComment($select) . implode(' ', \array_filter($parts));
 }