我正在尝试为 Munin 激活一些 Postgresql 插件。当我运行时，munin-node-configure --suggest | grep postgres我得到以下输出：
postgres_bgwriter | no | no [DBD::Pg not found, and cannot do psql yet]
postgres_cache_ | no | no [DBD::Pg not found, and cannot do psql yet]
postgres_checkpoints | no | no [DBD::Pg not found, and cannot do psql yet]
postgres_connections_ | no | no [DBD::Pg not found, and cannot do psql yet]
postgres_connections_db | no | no [DBD::Pg not found, and cannot do psql yet]
postgres_locks_ | no | …