Some projects are easier and safer to work with than others. The PostgreSQL project doesn't require assignment, and the license is BSD (without advertising clau

Some projects are easier and safer to work with than others. The PostgreSQL project doesn't require assignment, and the license is BSD (without advertising clause, of course) so there isn't much to argue about. But in any case, you do need to know whether you have copyright ownership of the code or a suitable license before you use it in a contribution.