create extension postgres_fdw; --创建扩展
create server db0 foreign data wrapper postgres_fdw OPTIONS (host ‘172.16.9.181‘,port ‘5432‘,dbname ‘vcssmp‘,use_remote_estimate ‘true‘);
--创建远端映射 host远端数据库IP地址 port远端数据库端口
dbname 远端数据库名称
create user mapping FOR mpa SERVER db0 options (user ‘vcssmp‘,password ‘vcssmp‘);
本地用户到远端的映射
import FOREIGN SCHEMA public from server db0 into public;
将远端的用户下的 public模式下的表 映射到本地public模式下
CREATE FOREIGN TABLE smp_t_dict181( key_value varchar(512),key_name varchar(512),key_type varchar(64),parent_key_value varchar(512),seq double precision,extends varchar(512),description varchar(512),create_user varchar(32),create_time date,update_user varchar(32),update_time date,enable_flag numeric(1,0),guid varchar(64) NOT NULL) SERVER db0 OPTIONS (schema ‘oracle‘,table ‘smp_t_dict‘);
