mongodb [test platform:dpkg]
mongodb-server [test platform:rpm !platform:opensuseproject]
dev-db/mongodb [test platform:gentoo]
mysql-server [test platform:dpkg]
postgresql [test]
postgresql-client [test platform:dpkg]
postgresql-devel [test platform:rpm]
postgresql-server [test platform:rpm]
libpq-dev [test platform:dpkg]