Yes, our PdoDataSource can be use to connect to Postgresql.

    function settings()
    {
        return array(
            "dataSources"=>array(
                "progres" =>array(
                    "connectionString"=>"'pgsql:host=localhost;port=5432;dbname=testdrive",
                    "username"=>"root",
                    "password"=>""
                )
            )
        );
    }