The only dependency would be libmysql-client, which is surely already installed as dependency of another package. And yes, postgres should also be supported when the code supports it. One clientlib isn't a big dependency. I see much more in other packages in Debian. But if you don't want to add this support, you should alter the docs. I only recognized the missing support when checking the dependencies or the rules file. The docs describe the mysql setup, but it isn't supported by the package. I get an error, could not connect to database, and wonder why.
Regards Thomas
