15 lines
720 B
SQL
15 lines
720 B
SQL
-- 别名表增加唯一约束，防止同一个人名下同名别名重复
|
||
CREATE UNIQUE INDEX IF NOT EXISTS idx_aliases_unique ON person_aliases(person_id, alias_name);
|
||
|
||
-- 清理可能存在的重复别名（保留 id 最小的那条）
|
||
DELETE FROM person_aliases WHERE id NOT IN (
|
||
SELECT MIN(id) FROM person_aliases GROUP BY person_id, alias_name
|
||
);
|
||
|
||
-- 相册关联表上增加唯一索引（已有 PRIMARY KEY，添加显式唯一索引加速）
|
||
-- 同时增加每张专辑只能有一个 person 的约束
|
||
-- 先清理旧的重复关联（同一album_id关联了多个person_id的情况）
|
||
DELETE FROM person_albums WHERE rowid NOT IN (
|
||
SELECT MIN(rowid) FROM person_albums GROUP BY album_id, person_id
|
||
);
|