我正在尝试按照Debezium教程为Postgres设置一个复制用户。我正在创建复制用户，如下所示：

CREATE ROLE replication_role WITH REPLICATION LOGIN;

CREATE USER debezium WITH PASSWORD 'my-secret-pw';

GRANT replication_role TO debezium;

CREATE ROLE replication_group WITH LOGIN;

GRANT replication_group TO postgres;

GRANT replication_group TO debezium;

ALTER TABLE person OWNER TO replication_group;

并按如下方式设置复制用户：

List of roles
     Role name     |                         Attributes                         |              Member of               
-------------------+------------------------------------------------------------+--------------------------------------
 debezium          |                                                            | {replication_role,replication_group}
 postgres          | Superuser, Create role, Create DB, Replication, Bypass RLS | {replication_group}
 replication_group |                                                            | {}
 replication_role  | Replication                                                | {}

当我尝试启动Postgres源连接器时，我得到如下错误：

io.debezium.DebeziumException: Creation of replication slot failed
...
Caused by: org.postgresql.util.PSQLException: FATAL: must be superuser or replication role to start walsender

如何修复权限问题，以便可以从Postgres开始复制？