public function prefixQuery() {
        
        $options = $this->getOptions();
        
        if ($this->validateOptions($options)) {
            $this->queryPrefix = $this->getDriverEscaper()->dbCommand('SELECT') . ' ';
            $fields = $this->setFieldList($options);
            $this->queryPrefix .= $fields . ' ' . $this->getDriverEscaper()->dbCommand('FROM') . ' ' . $this->getDriverEscaper()->reserved($options['table']) . ' ' . $this->getDriverEscaper()->dbCommand('WHERE') . ' ';
        }
        
        return $this;
    }