chore: initial commit

internal/db/schema/posts.sql

@@ -0,0 +1,35 @@
+CREATE TABLE posts
+(
+    id           INTEGER PRIMARY KEY GENERATED ALWAYS AS IDENTITY,
+    title        TEXT        NOT NULL,
+    cover_id     INTEGER,
+    slug         TEXT UNIQUE NOT NULL,
+    content      TEXT        NOT NULL,
+    summary      TEXT        NOT NULL,
+    status       SMALLINT    NOT NULL DEFAULT 1,
+    sort         INTEGER              DEFAULT 0,
+    published_at TIMESTAMPTZ   NOT NULL DEFAULT NOW(),
+    created_at   TIMESTAMPTZ   NOT NULL DEFAULT NOW(),
+    updated_at   TIMESTAMPTZ,
+
+    CHECK (status IN (0, 1, 2))
+);
+
+CREATE TRIGGER update_posts_updated_at
+    BEFORE UPDATE
+    ON posts
+    FOR EACH ROW
+EXECUTE FUNCTION update_updated_at_column();
+
+
+COMMENT ON COLUMN posts.id IS '主键ID';
+COMMENT ON COLUMN posts.title IS '文章标题';
+COMMENT ON COLUMN posts.cover_id IS '文章封面图片id';
+COMMENT ON COLUMN posts.slug IS 'URL友好地址';
+COMMENT ON COLUMN posts.content IS '文章正文';
+COMMENT ON COLUMN posts.summary IS '摘要';
+COMMENT ON COLUMN posts.status IS '状态 0:草稿 1:已发布 2:已下线';
+COMMENT ON COLUMN posts.sort IS '文章排序';
+COMMENT ON COLUMN posts.published_at IS '发布时间';
+COMMENT ON COLUMN posts.created_at IS '创建时间';
+COMMENT ON COLUMN posts.updated_at IS '修改时间';