From 0c37c7e6593b2eff1886a39f0e0de26126fb3909 Mon Sep 17 00:00:00 2001
From: yml2213 <a2213290201@gmail.com>
Date: Sat, 5 Sep 2026 11:54:53 +0800
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- 删除 dev 的 000051_user_token_version（main 的 000052_user_token_version 已实现同列）
- order_list_least_privilege / file_upload_owners / cleanup_index 改号为 000067-000069
- 000068 改为 CREATE TABLE IF NOT EXISTS、000069 改为条件加索引，兼容已执行旧编号的历史库
---
 .../migrations/000051_user_token_version.sql  | 10 ---------
 ...00053_file_upload_owners_cleanup_index.sql | 10 ---------
 ... => 000067_order_list_least_privilege.sql} |  0
 ...ners.sql => 000068_file_upload_owners.sql} |  2 +-
 ...00069_file_upload_owners_cleanup_index.sql | 21 +++++++++++++++++++
 5 files changed, 22 insertions(+), 21 deletions(-)
 delete mode 100644 backend/migrations/000051_user_token_version.sql
 delete mode 100644 backend/migrations/000053_file_upload_owners_cleanup_index.sql
 rename backend/migrations/{000050_order_list_least_privilege.sql => 000067_order_list_least_privilege.sql} (100%)
 rename backend/migrations/{000052_file_upload_owners.sql => 000068_file_upload_owners.sql} (92%)
 create mode 100644 backend/migrations/000069_file_upload_owners_cleanup_index.sql

diff --git a/backend/migrations/000051_user_token_version.sql b/backend/migrations/000051_user_token_version.sql
deleted file mode 100644
index 2febaf3..0000000
--- a/backend/migrations/000051_user_token_version.sql
+++ /dev/null
@@ -1,10 +0,0 @@
--- +goose Up
-
--- 用户会话版本：冻结、改密和退出时递增，立即撤销旧 access/refresh token。
-ALTER TABLE users
-  ADD COLUMN token_version BIGINT NOT NULL DEFAULT 1 COMMENT '用户令牌版本';
-
--- +goose Down
-
-ALTER TABLE users
-  DROP COLUMN token_version;
diff --git a/backend/migrations/000053_file_upload_owners_cleanup_index.sql b/backend/migrations/000053_file_upload_owners_cleanup_index.sql
deleted file mode 100644
index 9ac010a..0000000
--- a/backend/migrations/000053_file_upload_owners_cleanup_index.sql
+++ /dev/null
@@ -1,10 +0,0 @@
--- +goose Up
-
--- 为长期未关联上传归属记录的定时清理提供索引。
-ALTER TABLE file_upload_owners
-  ADD KEY idx_file_upload_owners_created_at (created_at);
-
--- +goose Down
-
-ALTER TABLE file_upload_owners
-  DROP INDEX idx_file_upload_owners_created_at;
diff --git a/backend/migrations/000050_order_list_least_privilege.sql b/backend/migrations/000067_order_list_least_privilege.sql
similarity index 100%
rename from backend/migrations/000050_order_list_least_privilege.sql
rename to backend/migrations/000067_order_list_least_privilege.sql
diff --git a/backend/migrations/000052_file_upload_owners.sql b/backend/migrations/000068_file_upload_owners.sql
similarity index 92%
rename from backend/migrations/000052_file_upload_owners.sql
rename to backend/migrations/000068_file_upload_owners.sql
index 51f5cfe..f340093 100644
--- a/backend/migrations/000052_file_upload_owners.sql
+++ b/backend/migrations/000068_file_upload_owners.sql
@@ -1,7 +1,7 @@
 -- +goose Up
 
 -- 私有文件上传归属：在业务记录写入前，仅允许上传者预览自己的临时文件。
-CREATE TABLE file_upload_owners (
+CREATE TABLE IF NOT EXISTS file_upload_owners (
   id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
   user_id BIGINT UNSIGNED NOT NULL,
   object_key VARCHAR(512) NOT NULL,
diff --git a/backend/migrations/000069_file_upload_owners_cleanup_index.sql b/backend/migrations/000069_file_upload_owners_cleanup_index.sql
new file mode 100644
index 0000000..3f5b6c1
--- /dev/null
+++ b/backend/migrations/000069_file_upload_owners_cleanup_index.sql
@@ -0,0 +1,21 @@
+-- +goose Up
+
+-- 为长期未关联上传归属记录的定时清理提供索引。
+-- 兼容历史上已按旧编号执行过该索引的数据库，重复执行时跳过。
+SET @idx_exists := (
+  SELECT COUNT(*) FROM information_schema.statistics
+  WHERE table_schema = DATABASE()
+    AND table_name = 'file_upload_owners'
+    AND index_name = 'idx_file_upload_owners_created_at'
+);
+SET @ddl := IF(@idx_exists > 0,
+  'SELECT 1',
+  'ALTER TABLE file_upload_owners ADD KEY idx_file_upload_owners_created_at (created_at)');
+PREPARE stmt FROM @ddl;
+EXECUTE stmt;
+DEALLOCATE PREPARE stmt;
+
+-- +goose Down
+
+ALTER TABLE file_upload_owners
+  DROP INDEX idx_file_upload_owners_created_at;