In case you choose to employ a PostgreSQL-driven script application on one of your sites, you need adequate database storage for it, in order to ensure that even when your site expands, it will run efficiently and without disorders. Adding additional products to an electronic store or more comments to a community forum are only two samples of what can expand your databases. If you use up all your storage space at some time, the functionality could decrease or the website might not be reachable at all owing to the fact that when the storage limit is reached, the script won't be able to store additional content in the database - user-generated or system one. Since PostgreSQL is intended for scalable web apps, it is more than likely that when you use such a database for your site, you'll need additional space for it when your site grows.