Ouzo\Db\Query::selectDistinct PHP Метод

    public static function selectDistinct($selectColumns = null)
    {
        $query = self::select($selectColumns);
        $query->distinct = true;
        return $query;
    }

 /**
  * @test
  */
 public function shouldCreateSelectDistinctQuery()
 {
     // when
     $query = Query::selectDistinct();
     // then
     $this->assertEquals(QueryType::$SELECT, $query->type);
     $this->assertTrue($query->distinct);
 }