refactor: 动态计算商店前置任务等级

help/base_sys_user_role去重.sql

@@ -0,0 +1,30 @@
+-- base_sys_user_role 角色授权去重
+-- 保留每组 userId + roleId 中 id 最小的一条，删除其余重复记录
+
+-- 1. 执行前查看重复数据
+SELECT
+  "userId",
+  "roleId",
+  COUNT(*) AS cnt,
+  MIN(id) AS keep_id,
+  ARRAY_AGG(id ORDER BY id) AS ids
+FROM base_sys_user_role
+GROUP BY "userId", "roleId"
+HAVING COUNT(*) > 1
+ORDER BY cnt DESC, "userId", "roleId";
+
+-- 2. 删除重复数据
+DELETE FROM base_sys_user_role a
+USING base_sys_user_role b
+WHERE a."userId" = b."userId"
+  AND a."roleId" = b."roleId"
+  AND a.id > b.id;
+
+-- 3. 执行后复查，应返回 0 行
+SELECT
+  "userId",
+  "roleId",
+  COUNT(*) AS cnt
+FROM base_sys_user_role
+GROUP BY "userId", "roleId"
+HAVING COUNT(*) > 1;