.

storage_v1.19.1/migrations/tenant/0002-storage-schema.sql

@@ -1,12 +1,15 @@
+-- ✅ 创建 schema （幂等）
 DO $$
 BEGIN
     IF NOT EXISTS (
-        SELECT schema_name FROM information_schema.schemata WHERE schema_name = 'storage'
+        SELECT schema_name FROM information_schema.schemata
+        WHERE schema_name = 'storage'
     ) THEN
         CREATE SCHEMA storage;
     END IF;
 END$$;
 
+-- ✅ 创建角色和默认权限（幂等）
 DO $$
 DECLARE
     install_roles text := COALESCE(current_setting('storage.install_roles', true), 'true');
@@ -16,31 +19,23 @@ DECLARE
 BEGIN
     IF install_roles != 'true' THEN RETURN; END IF;
 
-    -- 角色存在判断后再建
     IF NOT EXISTS (SELECT 1 FROM pg_roles WHERE rolname = anon_role) THEN
         EXECUTE 'CREATE ROLE ' || quote_ident(anon_role) || ' NOLOGIN NOINHERIT';
     END IF;
-
     IF NOT EXISTS (SELECT 1 FROM pg_roles WHERE rolname = authenticated_role) THEN
         EXECUTE 'CREATE ROLE ' || quote_ident(authenticated_role) || ' NOLOGIN NOINHERIT';
     END IF;
-
     IF NOT EXISTS (SELECT 1 FROM pg_roles WHERE rolname = service_role) THEN
         EXECUTE 'CREATE ROLE ' || quote_ident(service_role) || ' NOLOGIN NOINHERIT BYPASSRLS';
     END IF;
-
     IF NOT EXISTS (SELECT 1 FROM pg_roles WHERE rolname = 'authenticator') THEN
         CREATE USER authenticator NOINHERIT;
     END IF;
 
-    -- 授权角色
+    EXECUTE 'GRANT ' || quote_ident(anon_role) || ',' ||
-    EXECUTE 'GRANT ' || quote_ident(anon_role) || ' TO authenticator';
+                     quote_ident(authenticated_role) || ',' ||
-    EXECUTE 'GRANT ' || quote_ident(authenticated_role) || ' TO authenticator';
+                     quote_ident(service_role) || ' TO authenticator';
-    EXECUTE 'GRANT ' || quote_ident(service_role) || ' TO authenticator';
 
-    -- 不再尝试 GRANT postgres TO authenticator（禁止行为）
-
-    -- schema usage 与默认权限
     EXECUTE 'GRANT USAGE ON SCHEMA storage TO ' ||
         quote_ident(anon_role) || ',' ||
         quote_ident(authenticated_role) || ',' ||
@@ -48,14 +43,13 @@ BEGIN
 
     EXECUTE 'ALTER DEFAULT PRIVILEGES IN SCHEMA storage GRANT ALL ON TABLES TO ' ||
         quote_ident(anon_role) || ',' || quote_ident(authenticated_role) || ',' || quote_ident(service_role);
-
     EXECUTE 'ALTER DEFAULT PRIVILEGES IN SCHEMA storage GRANT ALL ON FUNCTIONS TO ' ||
         quote_ident(anon_role) || ',' || quote_ident(authenticated_role) || ',' || quote_ident(service_role);
-
     EXECUTE 'ALTER DEFAULT PRIVILEGES IN SCHEMA storage GRANT ALL ON SEQUENCES TO ' ||
         quote_ident(anon_role) || ',' || quote_ident(authenticated_role) || ',' || quote_ident(service_role);
 END$$;
 
+-- ✅ 创建 migrations 表（幂等）
 CREATE TABLE IF NOT EXISTS storage.migrations (
   id integer PRIMARY KEY,
   name varchar(100) UNIQUE NOT NULL,
@@ -63,17 +57,32 @@ CREATE TABLE IF NOT EXISTS storage.migrations (
   executed_at timestamp DEFAULT current_timestamp
 );
 
+-- ✅ 创建 buckets 表（不含 public 字段）
 CREATE TABLE IF NOT EXISTS storage.buckets (
     id text NOT NULL,
     name text NOT NULL,
     owner uuid,
-    public boolean NOT NULL DEFAULT false,
     created_at timestamptz DEFAULT now(),
     updated_at timestamptz DEFAULT now(),
     PRIMARY KEY (id)
 );
 CREATE UNIQUE INDEX IF NOT EXISTS bname ON storage.buckets (name);
 
+-- ✅ 补 public 字段（兼容升级）
+DO $$
+BEGIN
+  IF NOT EXISTS (
+    SELECT 1 FROM information_schema.columns
+    WHERE table_schema = 'storage'
+      AND table_name = 'buckets'
+      AND column_name = 'public'
+  ) THEN
+    ALTER TABLE storage.buckets
+    ADD COLUMN public boolean NOT NULL DEFAULT false;
+  END IF;
+END$$;
+
+-- ✅ 创建 objects 表
 CREATE TABLE IF NOT EXISTS storage.objects (
     id uuid NOT NULL DEFAULT gen_random_uuid(),
     bucket_id text,
@@ -89,43 +98,36 @@ CREATE TABLE IF NOT EXISTS storage.objects (
 CREATE UNIQUE INDEX IF NOT EXISTS bucketid_objname ON storage.objects (bucket_id, name);
 CREATE INDEX IF NOT EXISTS name_prefix_search ON storage.objects (name text_pattern_ops);
 
+-- ✅ 启用 RLS
 ALTER TABLE storage.objects ENABLE ROW LEVEL SECURITY;
 
--- 安全函数定义
+-- ✅ 内置函数（可重用）
 CREATE OR REPLACE FUNCTION storage.foldername(name text)
- RETURNS text[]
+ RETURNS text[] LANGUAGE plpgsql AS $$
- LANGUAGE plpgsql
-AS $$
 DECLARE _parts text[];
 BEGIN
 	SELECT string_to_array(name, '/') INTO _parts;
 	RETURN _parts[1:array_length(_parts,1)-1];
-END
+END$$;
-$$;
 
 CREATE OR REPLACE FUNCTION storage.filename(name text)
- RETURNS text
+ RETURNS text LANGUAGE plpgsql AS $$
- LANGUAGE plpgsql
-AS $$
 DECLARE _parts text[];
 BEGIN
 	SELECT string_to_array(name, '/') INTO _parts;
 	RETURN _parts[array_length(_parts,1)];
-END
+END$$;
-$$;
 
 CREATE OR REPLACE FUNCTION storage.extension(name text)
- RETURNS text
+ RETURNS text LANGUAGE plpgsql AS $$
- LANGUAGE plpgsql
-AS $$
 DECLARE _parts text[]; _filename text;
 BEGIN
 	SELECT string_to_array(name, '/') INTO _parts;
 	SELECT _parts[array_length(_parts,1)] INTO _filename;
 	RETURN reverse(split_part(reverse(_filename), '.', 1));
-END
+END$$;
-$$;
 
+-- ✅ 文件夹搜索函数（用于前端分层目录浏览）
 CREATE OR REPLACE FUNCTION storage.search(
   prefix text, bucketname text, limits int DEFAULT 100, levels int DEFAULT 1, offsets int DEFAULT 0
 )
@@ -137,8 +139,7 @@ CREATE OR REPLACE FUNCTION storage.search(
     last_accessed_at timestamptz,
     metadata jsonb
  )
- LANGUAGE plpgsql
+ LANGUAGE plpgsql AS $$
-AS $$
 BEGIN
 	RETURN QUERY
 	WITH files_folders AS (
@@ -160,9 +161,9 @@ BEGIN
 	LEFT JOIN storage.objects
 	ON prefix || files_folders.folder = objects.name
 	   AND objects.bucket_id = bucketname;
-END
+END$$;
-$$;
 
+-- ✅ 管理员角色创建（幂等）
 DO $$
 DECLARE
     install_roles text := COALESCE(current_setting('storage.install_roles', true), 'true');
@@ -190,18 +191,14 @@ BEGIN
     EXECUTE 'ALTER FUNCTION storage.filename(text) OWNER TO ' || quote_ident(super_user);
     EXECUTE 'ALTER FUNCTION storage.extension(text) OWNER TO ' || quote_ident(super_user);
     EXECUTE 'ALTER FUNCTION storage.search(text,text,int,int,int) OWNER TO ' || quote_ident(super_user);
-
 END$$;
 
-
+-- ✅ 插入默认 bucket（公开访问，用于头像）
--- ✅ 单独插入 bucket（允许重复执行）
 INSERT INTO storage.buckets (id, name, owner, public)
 VALUES ('profile_images', 'profile_images', NULL, true)
 ON CONFLICT (id) DO UPDATE SET public = true;
 
-
+-- ✅ RLS 策略定义（幂等）
-
--- ✅ 单独定义权限策略（重复执行不会报错）
 DO $$
 BEGIN
   IF NOT EXISTS (
@@ -223,4 +220,4 @@ BEGIN
              TO anon
              USING (bucket_id = ''profile_images'')';
   END IF;
-END$$;
+END$$;