feat(blog::components::check+update) update

backend/server/src/modules/blog/schema.sql

@@ -2,20 +2,20 @@ CREATE TABLE tags
 (
     id          SERIAL PRIMARY KEY,
     name        VARCHAR(20) UNIQUE NOT NULL,
-    description TEXT
+    description TEXT DEFAULT ''
 );
 
 CREATE TABLE categories
 (
     id          SERIAL PRIMARY KEY,
     name        VARCHAR(20) UNIQUE NOT NULL,
-    description TEXT
+    description TEXT DEFAULT ''
 );
 
 CREATE TABLE posts
 (
-    id             SERIAL PRIMARY KEY,
-    identifier     VARCHAR(50) UNIQUE                NOT NULL,
+    id             UUID UNIQUE                       NOT NULL,
+    identifier     VARCHAR(100) UNIQUE               NOT NULL,
     title          VARCHAR(255)                      NOT NULL,
     subtitle       VARCHAR(255)                      NOT NULL,
     published_date DATE                              NOT NULL,
@@ -27,15 +27,15 @@ CREATE TABLE posts
 
 CREATE TABLE post_tag
 (
-    post SERIAL REFERENCES posts (id),
+    post UUID REFERENCES posts (id),
     tag  SERIAL REFERENCES tags (id)
 );
 
 CREATE TABLE metadata
 (
-    pid        SERIAL REFERENCES posts (id) NOT NULL,
-    meta_key   VARCHAR(50)                  NOT NULL,
-    meta_value TEXT                         NOT NULL,
+    pid        UUID REFERENCES posts (id) NOT NULL,
+    meta_key   VARCHAR(50)                NOT NULL,
+    meta_value TEXT                       NOT NULL,
 
     CONSTRAINT meta_pk PRIMARY KEY (pid, meta_key)
 );