add

backend/src/logic4country/04_country.sql

@@ -1,124 +0,0 @@
--- 切换到目标数据库
-\c postgres;
-
-DO $$
-BEGIN
-    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,
-            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';
-    ELSE
-        RAISE NOTICE 'country table already exists';
-    END IF;
-
-    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,
-            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';
-    ELSE
-        RAISE NOTICE 'country_name table already exists';
-    END IF;
-
-    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,
-            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';
-    ELSE
-        RAISE NOTICE 'country_code table already exists';
-    END IF;
-
-    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,
-            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';
-    ELSE
-        RAISE NOTICE 'country_flag table already exists';
-    END IF;
-END $$;
-
-DO $$
-DECLARE
-    view_exists BOOLEAN;
-BEGIN
-    -- 检查视图是否已存在
-    SELECT EXISTS (
-        SELECT 1 FROM information_schema.views 
-        WHERE table_name = 'country_info_view'
-    ) INTO view_exists;
-
-    -- 若视图存在，先删除（避免字段名冲突）
-    IF view_exists THEN
-        DROP VIEW country_info_view;
-        RAISE NOTICE '已删除旧视图 country_info_view';
-    END IF;
-
-    -- 创建或更新视图
-    CREATE OR REPLACE VIEW country_info_view AS
-    SELECT 
-        u.id AS country_id,
-        n.name AS country_name,       -- 国家名称
-        c.code AS country_code,       -- 国家代码
-        f.flag AS country_flag        -- 国旗信息
-    FROM 
-        country u
-    LEFT JOIN 
-        country_name n ON u.id = n.country_id AND n.deleted = FALSE  -- 过滤已删除名称
-    LEFT JOIN 
-        country_code c ON u.id = c.country_id AND c.deleted = FALSE  -- 过滤已删除代码
-    LEFT JOIN 
-        country_flag f ON u.id = f.country_id AND f.deleted = FALSE  -- 左连接：允许无国旗数据
-    WHERE
-        u.deleted = FALSE;  -- 只查询未删除的国家
-
-    -- 根据视图是否已存在输出不同提示
-    IF view_exists THEN
-        RAISE NOTICE '视图 country_info_view 已更新（删除旧视图后重建）';
-    ELSE
-        RAISE NOTICE '视图 country_info_view 已创建';
-    END IF;
-EXCEPTION
-    WHEN OTHERS THEN
-        RAISE NOTICE '处理视图时发生错误: %', SQLERRM;
-END $$;