87 lines
4.4 KiB
SQL
87 lines
4.4 KiB
SQL
-- =============================================================================
|
||
-- FDW 反向映射配置（生产环境）— 在 etl_feiqiu 数据库中执行
|
||
-- 用途：通过 postgres_fdw 将 zqyy_app.member_retention_clue 只读映射到 etl_feiqiu，
|
||
-- 使 ETL DWS 任务无需直接连接业务库即可读取维客线索数据。
|
||
-- 方向：etl_feiqiu → zqyy_app（与 setup_fdw.sql 的 zqyy_app → etl_feiqiu 方向相反）
|
||
-- 前提：zqyy_app 数据库已部署 member_retention_clue 表
|
||
-- 测试环境版本：setup_fdw_reverse_test.sql（指向 test_zqyy_app）
|
||
-- CHANGE 2026-02-26 | member_birthday_manual → member_retention_clue（维客线索重构）
|
||
-- =============================================================================
|
||
|
||
-- -----------------------------------------------------------------------------
|
||
-- 1. 安装 postgres_fdw 扩展（如已安装则跳过）
|
||
-- -----------------------------------------------------------------------------
|
||
CREATE EXTENSION IF NOT EXISTS postgres_fdw;
|
||
|
||
-- -----------------------------------------------------------------------------
|
||
-- 2. 创建外部服务器（指向 zqyy_app 业务库）
|
||
-- 部署时按实际环境替换 host / port
|
||
-- -----------------------------------------------------------------------------
|
||
CREATE SERVER IF NOT EXISTS zqyy_app_server
|
||
FOREIGN DATA WRAPPER postgres_fdw
|
||
OPTIONS (host 'localhost', dbname 'zqyy_app', port '5432');
|
||
|
||
-- -----------------------------------------------------------------------------
|
||
-- 3. 创建用户映射（只读角色）
|
||
-- -----------------------------------------------------------------------------
|
||
CREATE USER MAPPING IF NOT EXISTS FOR etl_user
|
||
SERVER zqyy_app_server
|
||
OPTIONS (user 'app_reader', password '***');
|
||
|
||
-- -----------------------------------------------------------------------------
|
||
-- 4. 创建目标 schema（存放来自业务库的外部表）
|
||
-- -----------------------------------------------------------------------------
|
||
CREATE SCHEMA IF NOT EXISTS fdw_app;
|
||
|
||
-- -----------------------------------------------------------------------------
|
||
-- 5. 创建外部表：member_retention_clue
|
||
-- 映射 zqyy_app.public.member_retention_clue，ETL 侧只读
|
||
-- -----------------------------------------------------------------------------
|
||
CREATE FOREIGN TABLE IF NOT EXISTS fdw_app.member_retention_clue (
|
||
id BIGINT,
|
||
member_id BIGINT,
|
||
category VARCHAR(20),
|
||
summary VARCHAR(200),
|
||
detail TEXT,
|
||
recorded_by_assistant_id BIGINT,
|
||
recorded_by_name VARCHAR(50),
|
||
recorded_at TIMESTAMPTZ,
|
||
site_id BIGINT
|
||
) SERVER zqyy_app_server
|
||
OPTIONS (schema_name 'public', table_name 'member_retention_clue');
|
||
|
||
-- -----------------------------------------------------------------------------
|
||
-- 6. 授权：允许 etl_user 访问 fdw_app schema 及其外部表
|
||
-- -----------------------------------------------------------------------------
|
||
GRANT USAGE ON SCHEMA fdw_app TO etl_user;
|
||
GRANT SELECT ON ALL TABLES IN SCHEMA fdw_app TO etl_user;
|
||
ALTER DEFAULT PRIVILEGES IN SCHEMA fdw_app GRANT SELECT ON TABLES TO etl_user;
|
||
|
||
|
||
-- =============================================================================
|
||
-- 回滚脚本（按逆序执行）
|
||
-- =============================================================================
|
||
-- ALTER DEFAULT PRIVILEGES IN SCHEMA fdw_app REVOKE SELECT ON TABLES FROM etl_user;
|
||
-- REVOKE SELECT ON ALL TABLES IN SCHEMA fdw_app FROM etl_user;
|
||
-- REVOKE USAGE ON SCHEMA fdw_app FROM etl_user;
|
||
-- DROP FOREIGN TABLE IF EXISTS fdw_app.member_retention_clue;
|
||
-- DROP SCHEMA IF EXISTS fdw_app CASCADE;
|
||
-- DROP USER MAPPING IF EXISTS FOR etl_user SERVER zqyy_app_server;
|
||
-- DROP SERVER IF EXISTS zqyy_app_server CASCADE;
|
||
|
||
|
||
-- =============================================================================
|
||
-- 验证 SQL
|
||
-- =============================================================================
|
||
-- 1. 确认外部服务器存在
|
||
-- SELECT srvname, srvoptions FROM pg_foreign_server
|
||
-- WHERE srvname = 'zqyy_app_server';
|
||
|
||
-- 2. 确认外部表列结构完整（9 列）
|
||
-- SELECT column_name, data_type FROM information_schema.columns
|
||
-- WHERE table_schema = 'fdw_app' AND table_name = 'member_retention_clue'
|
||
-- ORDER BY ordinal_position;
|
||
|
||
-- 3. 确认外部表可读取
|
||
-- SELECT COUNT(*) FROM fdw_app.member_retention_clue;
|