优化连接效率

scripts/sql/init.sql

@@ -3,9 +3,10 @@ drop table if exists nodes cascade;
 create table nodes (
     id         serial primary key,
     name       varchar(255) not null unique,
+    version    int          not null,
+    fwd_port   int          not null,
     provider   varchar(255) not null,
     location   varchar(255) not null,
-    ip_address varchar(255) not null,
     created_at timestamp default current_timestamp,
     updated_at timestamp default current_timestamp,
     deleted_at timestamp