Cake\Database\Query::bufferResults PHP Method

    public function bufferResults($enable = null)
    {
        if ($enable === null) {
            return $this->_useBufferedResults;
        }
        $this->_dirty();
        $this->_useBufferedResults = (bool) $enable;
        return $this;
    }

 /**
  * Prepares a sql statement to be executed
  *
  * @param string|\Cake\Database\Query $query The query to prepare.
  * @return \Cake\Database\StatementInterface
  */
 public function prepare($query)
 {
     $this->connect();
     $options = [PDO::ATTR_CURSOR => PDO::CURSOR_SCROLL];
     $isObject = $query instanceof Query;
     if ($isObject && $query->bufferResults() === false) {
         $options = [];
     }
     $statement = $this->_connection->prepare($isObject ? $query->sql() : $query, $options);
     return new SqlserverStatement($statement, $this);
 }