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server/.ai-specs/doc-sql/book_author.md

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+# 书籍作者表
+
+## 基本信息
+
+- 模块：book
+- 表名：`book_author`
+- 模型：`model/book/book_author.go`
+- 迁移接入：`initialize/gorm_biz.go`
+- 状态字典：`book_author_status`
+- 职责：承载书籍作者主体信息，用于作者资料展示、书籍作者关联和后台作者管理。
+
+## 建议 SQL
+
+> 以下 SQL 以当前项目 PostgreSQL 为准，主要表达字段、约束和索引语义；实际落库以 `GORM Model` 和 `initialize/gorm_biz.go` 为准。
+
+```sql
+CREATE TABLE book_author (
+  id bigserial PRIMARY KEY,
+  created_at timestamp with time zone NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  updated_at timestamp with time zone NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  name varchar(128) NOT NULL,
+  author_status varchar(32) NOT NULL DEFAULT 'enabled',
+  intro text,
+  cover_url varchar(500)
+);
+
+COMMENT ON TABLE book_author IS '书籍作者表';
+COMMENT ON COLUMN book_author.id IS '主键';
+COMMENT ON COLUMN book_author.created_at IS '创建时间';
+COMMENT ON COLUMN book_author.updated_at IS '更新时间';
+COMMENT ON COLUMN book_author.name IS '作者名称';
+COMMENT ON COLUMN book_author.author_status IS '作者状态字典值，对应 book_author_status';
+COMMENT ON COLUMN book_author.intro IS '作者简介';
+COMMENT ON COLUMN book_author.cover_url IS '作者封面图片 URL';
+
+CREATE UNIQUE INDEX uk_book_author_name ON book_author (name);
+CREATE INDEX idx_book_author_author_status ON book_author (author_status);
+CREATE INDEX idx_book_author_created_at ON book_author (created_at);
+```