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vipg
2025-11-25 12:51:17 +08:00
parent 2293899780
commit 29f134c3e5
1 changed files with 69 additions and 59 deletions
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128
backend/sql/04_country.sql
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@@ -1,124 +1,134 @@
-- 切换到目标数据库
\c postgres;
-- =========================================================
-- country.sql 🌍
-- 无物化视图 | 超可视提示 | 可重复执行
-- PostgreSQL 17.4+ 👍
-- =========================================================
-- 1️⃣ 开始 🚀
DO $$
BEGIN
RAISE NOTICE '🚀============ country 部署开始 ============🚀';
END $$;
-- 2️⃣ 连接目标库
\c postgres;
-- 3️⃣ 表结构 -----------------------------------
DO $$
BEGIN
-- country 主表
IF NOT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'country') THEN
CREATE TABLE country (
id UUID DEFAULT gen_random_uuid_v7() PRIMARY KEY NOT NULL,
CREATE TABLE country (
id UUID DEFAULT gen_random_uuid() PRIMARY KEY,
deleted BOOLEAN NOT NULL DEFAULT FALSE,
created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
);
CREATE TRIGGER update_country_updated_at
BEFORE UPDATE ON "country"
FOR EACH ROW
EXECUTE FUNCTION update_data_modified_column();
RAISE NOTICE 'created country table and trigger';
BEFORE UPDATE ON country
FOR EACH ROW EXECUTE FUNCTION update_data_modified_column();
RAISE NOTICE '1️⃣✅ country 主表已创建';
ELSE
RAISE NOTICE 'country table already exists';
RAISE NOTICE '1️⃣⏩ country 主表已存在，跳过';
END IF;
-- country_name
IF NOT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'country_name') THEN
CREATE TABLE country_name (
id UUID DEFAULT gen_random_uuid_v7() PRIMARY KEY NOT NULL,
id UUID DEFAULT gen_random_uuid() PRIMARY KEY,
country_id UUID NOT NULL,
name VARCHAR NOT NULL,
deleted BOOLEAN NOT NULL DEFAULT FALSE,
created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
);
CREATE TRIGGER update_name_updated_at
BEFORE UPDATE ON "country_name"
FOR EACH ROW
EXECUTE FUNCTION update_data_modified_column();
RAISE NOTICE 'created country_name table and trigger';
CREATE TRIGGER update_country_name_updated_at
BEFORE UPDATE ON country_name
FOR EACH ROW EXECUTE FUNCTION update_data_modified_column();
RAISE NOTICE '2️⃣✅ country_name 子表已创建';
ELSE
RAISE NOTICE 'country_name table already exists';
RAISE NOTICE '2️⃣⏩ country_name 子表已存在，跳过';
END IF;
-- country_code
IF NOT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'country_code') THEN
CREATE TABLE country_code (
id UUID DEFAULT gen_random_uuid_v7() PRIMARY KEY NOT NULL,
id UUID DEFAULT gen_random_uuid() PRIMARY KEY,
country_id UUID NOT NULL,
code VARCHAR NOT NULL,
deleted BOOLEAN NOT NULL DEFAULT FALSE,
created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
);
CREATE TRIGGER update_code_updated_at
BEFORE UPDATE ON "country_code"
FOR EACH ROW
EXECUTE FUNCTION update_data_modified_column();
RAISE NOTICE 'created country_code table and trigger';
CREATE TRIGGER update_country_code_updated_at
BEFORE UPDATE ON country_code
FOR EACH ROW EXECUTE FUNCTION update_data_modified_column();
RAISE NOTICE '3️⃣✅ country_code 子表已创建';
ELSE
RAISE NOTICE 'country_code table already exists';
RAISE NOTICE '3️⃣⏩ country_code 子表已存在，跳过';
END IF;
-- country_flag
IF NOT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name = 'country_flag') THEN
CREATE TABLE country_flag (
id UUID DEFAULT gen_random_uuid_v7() PRIMARY KEY NOT NULL,
id UUID DEFAULT gen_random_uuid() PRIMARY KEY,
country_id UUID NOT NULL,
flag VARCHAR NOT NULL,
deleted BOOLEAN NOT NULL DEFAULT FALSE,
created_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP,
updated_at TIMESTAMPTZ NOT NULL DEFAULT CURRENT_TIMESTAMP
);
CREATE TRIGGER update_flag_updated_at
BEFORE UPDATE ON "country_flag"
FOR EACH ROW
EXECUTE FUNCTION update_data_modified_column();
RAISE NOTICE 'created country_flag table and trigger';
CREATE TRIGGER update_country_flag_updated_at
BEFORE UPDATE ON country_flag
FOR EACH ROW EXECUTE FUNCTION update_data_modified_column();
RAISE NOTICE '4️⃣✅ country_flag 子表已创建';
ELSE
RAISE NOTICE 'country_flag table already exists';
RAISE NOTICE '4️⃣⏩ country_flag 子表已存在，跳过';
END IF;
END $$;
-- 4️⃣ 视图 ------------------------------------
DO $$
DECLARE
view_exists BOOLEAN;
BEGIN
-- 检查视图是否已存在
SELECT EXISTS (
SELECT 1 FROM information_schema.views
WHERE table_name = 'country_info_view'
) INTO view_exists;
-- 若视图存在，先删除（避免字段名冲突）
IF view_exists THEN
DROP VIEW country_info_view;
RAISE NOTICE '已删除旧视图 country_info_view';
RAISE NOTICE '4️⃣♻️ 已删除旧视图 country_info_view';
END IF;
-- 创建或更新视图
CREATE OR REPLACE VIEW country_info_view AS
SELECT
SELECT
u.id AS country_id,
n.name AS name, -- 国家名称
c.code AS code, -- 国家代码
f.flag AS flag -- 国旗信息
FROM
country u
LEFT JOIN
country_name n ON u.id = n.country_id AND n.deleted = FALSE -- 过滤已删除名称
LEFT JOIN
country_code c ON u.id = c.country_id AND c.deleted = FALSE -- 过滤已删除代码
LEFT JOIN
country_flag f ON u.id = f.country_id AND f.deleted = FALSE -- 左连接：允许无国旗数据
WHERE
u.deleted = FALSE; -- 只查询未删除的国家
n.name,
c.code,
f.flag
FROM country u
LEFT JOIN country_name n ON u.id = n.country_id AND n.deleted = FALSE
LEFT JOIN country_code c ON u.id = c.country_id AND c.deleted = FALSE
LEFT JOIN country_flag f ON u.id = f.country_id AND f.deleted = FALSE
WHERE u.deleted = FALSE;
-- 根据视图是否已存在输出不同提示
IF view_exists THEN
RAISE NOTICE '视图 country_info_view 已更新（删除旧视图后重建）';
ELSE
RAISE NOTICE '视图 country_info_view 已创建';
END IF;
RAISE NOTICE '4️⃣✅ country_info_view 已创建/更新';
EXCEPTION
WHEN OTHERS THEN
RAISE NOTICE '处理视图时发生错误: %', SQLERRM;
RAISE NOTICE '4️⃣❌ 处理视图时发生错误: %', SQLERRM;
END $$;
-- 5️⃣ 性能索引 ------------------------------------------------
CREATE INDEX IF NOT EXISTS idx_country_name_country_id_deleted ON country_name(country_id, deleted);
CREATE INDEX IF NOT EXISTS idx_country_code_country_id_deleted ON country_code(country_id, deleted);
CREATE INDEX IF NOT EXISTS idx_country_flag_country_id_deleted ON country_flag(country_id, deleted);
RAISE NOTICE '5️⃣✅ 全部索引已确保存在';
-- 6️⃣ 完成 🎉
DO $$
BEGIN
RAISE NOTICE '🎉============ country 部署完成 ============🎉';
END $$;