From edd8c53c3a8a39fcd3c7b7e5643b63e379e0142a Mon Sep 17 00:00:00 2001
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Date: Fri, 11 Sep 2026 21:17:49 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E6=AD=A3=20create=5Ftest=5Fuser=20?=
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---
 tools/create_test_user.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/tools/create_test_user.py b/tools/create_test_user.py
index 3aa3e46..4dd99f4 100644
--- a/tools/create_test_user.py
+++ b/tools/create_test_user.py
@@ -143,7 +143,10 @@ async def upsert_user(
                 "now": now,
             },
         )
-        # 角色绑定先清后插：`sys_user_role` 没有唯一约束，直接插会堆重复行。
+        # 角色绑定先清后插。表上其实**有** `uk_sys_user_role (user_id, role_id)` 唯一键
+        # （`tools/generate_baseline_sql.py:128`），所以直接 INSERT 不会堆重复行 ——
+        # 先清的理由是**支持改角色**：不清的话换角色会在表里留下两条绑定，
+        # `IdentityService` 解析出的 roles 就变成两个（既是 customer 又是 admin）。
         await session.execute(
             text("DELETE FROM sys_user_role WHERE user_id = :user_id"), {"user_id": user_id}
         )