From 29c9f229ac5a3170cacf2176af95fd1420817efa Mon Sep 17 00:00:00 2001
From: weicw <594098497@qq.com>
Date: Mon, 26 Oct 2026 14:48:48 +0800
Subject: [PATCH] =?UTF-8?q?:card=5Ffile=5Fbox:=20=E5=B0=8F=E7=A8=8B?=
 =?UTF-8?q?=E5=BA=8F=E7=94=A8=E6=88=B7=20openid=20=E5=94=AF=E4=B8=80?=
 =?UTF-8?q?=E9=94=AE=E6=94=B9=E4=B8=BA=E6=99=AE=E9=80=9A=E7=B4=A2=E5=BC=95?=
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---
 doc/sql/transport/blade_mp_user_20261012.sql              | 2 +-
 doc/sql/transport/blade_mp_user_openid_index_20261026.sql | 8 ++++++++
 2 files changed, 9 insertions(+), 1 deletion(-)
 create mode 100644 doc/sql/transport/blade_mp_user_openid_index_20261026.sql

diff --git a/doc/sql/transport/blade_mp_user_20261012.sql b/doc/sql/transport/blade_mp_user_20261012.sql
index 32e2d94a..ff7ca12e 100644
--- a/doc/sql/transport/blade_mp_user_20261012.sql
+++ b/doc/sql/transport/blade_mp_user_20261012.sql
@@ -31,7 +31,7 @@ CREATE TABLE IF NOT EXISTS `blade_mp_user` (
   `is_deleted` int NULL DEFAULT 0 COMMENT '是否已删除',
   PRIMARY KEY (`id`) USING BTREE,
   UNIQUE KEY `uk_mp_user_tenant_phone` (`tenant_id`, `phone`) USING BTREE,
-  UNIQUE KEY `uk_mp_user_tenant_openid` (`tenant_id`, `openid`) USING BTREE,
+  KEY `idx_mp_user_openid` (`tenant_id`, `openid`) USING BTREE,
   KEY `idx_mp_user_account` (`tenant_id`, `account`) USING BTREE,
   KEY `idx_mp_user_identities` (`identities`) USING BTREE
 ) ENGINE = InnoDB CHARACTER SET = utf8mb4 COLLATE = utf8mb4_general_ci COMMENT = '小程序用户表';
diff --git a/doc/sql/transport/blade_mp_user_openid_index_20261026.sql b/doc/sql/transport/blade_mp_user_openid_index_20261026.sql
new file mode 100644
index 00000000..044ade03
--- /dev/null
+++ b/doc/sql/transport/blade_mp_user_openid_index_20261026.sql
@@ -0,0 +1,8 @@
+-- 小程序用户表 openid 索引：唯一键 uk_mp_user_tenant_openid 改为普通索引 idx_mp_user_openid(tenant_id, openid)
+-- openid 是「该账号最近一次登录用的微信」的留痕，不是账号标识：允许为空，允许多个账号留下同一个 openid
+-- 回滚（加回唯一键）前必须先把重复的 openid 置 NULL，否则唯一键 DDL 直接失败
+-- 部署时在业务库执行本脚本
+
+ALTER TABLE `blade_mp_user`
+  DROP INDEX `uk_mp_user_tenant_openid`,
+  ADD INDEX `idx_mp_user_openid` (`tenant_id`, `openid`) USING BTREE;