postgres_fdw

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');