Is difference between PostgreSQL and mySQL licences for client application minor only

I created closed source Postgres/mySQL client application.

When using PostgreSQL as backend I can include Postgres server binary code
in my application distro.

When using mySQL my application setup can load mySQL server installation
package from mysql website and execute it automatically.

This minor difference is the only difference between Postgres/mySQL licenses
in client application, right ?

Andrus.