public function renderIndexes(): string
    {
        $output = '';

        if ($this->indexes) {
            foreach ($this->indexes as $index) {
                foreach ($this->foreignKeys as $foreignKey) {
                    if ($foreignKey->name === $index->name) {
                        continue 2;
                    }
                }

                $output .= "\n" . $index->render($this);
            }
        }

        return $output;
    }