251 lines
5.3 KiB
Markdown
251 lines
5.3 KiB
Markdown
# 🔥 紧急修复 - 学生数据缺失
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**时间**: 2026-01-23 12:22
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**问题**: student表中没有id=1的学生记录
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---
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## 🐛 问题分析
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### 后端日志显示:
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```
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==> Preparing: SELECT ... FROM student WHERE id = ? AND deleted = 0
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==> Parameters: 1(Long)
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<== Total: 0
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```
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### 问题原因:
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- ❌ student表中没有id=1的学生记录
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- ❌ 导致Service层返回"学生不存在"
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- ❌ 最终返回空列表
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### 为什么会这样?
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1. 之前的测试数据可能没有创建student记录
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2. 或者student记录的deleted字段不是0
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3. 或者student记录的id不是1
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---
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## 🚀 立即修复
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### 步骤1: 执行SQL创建学生数据
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在数据库工具中执行:
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```sql
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-- 文件: peidu/sql/🚀创建测试学生数据-2026-01-23.sql
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```
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或者直接执行以下SQL:
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```sql
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-- 插入测试学生(如果已存在则更新)
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INSERT INTO student (
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id,
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user_id,
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student_name,
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gender,
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birth_date,
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grade,
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school,
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class_name,
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parent_name,
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parent_phone,
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parent_relation,
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learning_status,
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status,
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deleted,
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tenant_id,
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create_time,
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update_time
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) VALUES (
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1, -- id (固定为1)
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1, -- user_id (家长ID)
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'小明', -- student_name
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1, -- gender (1=男)
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'2015-05-15', -- birth_date
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'小学三年级', -- grade
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'实验小学', -- school
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'三年级1班', -- class_name
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'张女士', -- parent_name
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'13800000001', -- parent_phone
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'母亲', -- parent_relation
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'学习状态良好', -- learning_status
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1, -- status (1=正常)
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0, -- deleted (0=未删除)
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1, -- tenant_id
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NOW(), -- create_time
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NOW() -- update_time
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)
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ON DUPLICATE KEY UPDATE
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deleted = 0,
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student_name = '小明',
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update_time = NOW();
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```
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### 步骤2: 验证数据
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```sql
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-- 检查学生是否创建成功
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SELECT
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id,
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user_id,
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student_name,
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gender,
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deleted
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FROM student
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WHERE id = 1;
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```
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**预期结果**:
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- id: 1
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- user_id: 1
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- student_name: 小明
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- deleted: 0
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### 步骤3: 验证成长记录关联
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```sql
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-- 检查成长记录是否能关联到学生
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SELECT
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gr.id,
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gr.student_id,
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gr.student_name,
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s.student_name as actual_student_name,
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gr.record_type,
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gr.record_date
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FROM growth_record gr
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INNER JOIN student s ON gr.student_id = s.id
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WHERE gr.student_id = 1
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AND gr.deleted = 0
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AND s.deleted = 0
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ORDER BY gr.record_date DESC
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LIMIT 5;
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```
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**预期结果**:
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- 应该返回5条记录
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- 每条记录都能关联到学生
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---
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## 🧪 测试验证
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### 步骤1: 刷新小程序
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- 在微信开发者工具中点击"编译"按钮
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### 步骤2: 重新测试
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1. 登录家长端 (手机号: 13800000001)
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2. 进入"服务反馈"页面
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3. 应该能看到成长记录列表
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### 预期结果:
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- ✅ 能看到成长记录列表
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- ✅ 学生姓名显示: 小明
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- ✅ 陪伴员姓名显示正常
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- ✅ 日期、内容显示正常
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---
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## 📊 数据验证
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### 快速检查
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```sql
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-- 一键检查所有数据
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SELECT
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'学生数据' as check_item,
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COUNT(*) as count
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FROM student
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WHERE id = 1 AND deleted = 0
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UNION ALL
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SELECT
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'成长记录数据' as check_item,
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COUNT(*) as count
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FROM growth_record
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WHERE student_id = 1 AND deleted = 0
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UNION ALL
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SELECT
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'可关联的记录' as check_item,
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COUNT(*) as count
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FROM growth_record gr
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INNER JOIN student s ON gr.student_id = s.id
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WHERE gr.student_id = 1
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AND gr.deleted = 0
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AND s.deleted = 0;
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```
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**预期结果**:
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```
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学生数据: 1
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成长记录数据: 10+
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可关联的记录: 10+
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```
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---
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## 🔍 根本原因
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### 为什么之前没有发现?
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1. 之前执行的SQL只插入了growth_record数据
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2. 但没有创建对应的student记录
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3. Service层虽然做了容错处理(返回空列表)
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4. 但没有真正解决数据缺失问题
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### 正确的数据准备流程:
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1. ✅ 先创建user记录(家长)
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2. ✅ 再创建student记录(学生)
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3. ✅ 再创建order记录(订单)
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4. ✅ 最后创建growth_record记录(成长记录)
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---
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## 📁 相关文件
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### SQL文件
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- `peidu/sql/🚀创建测试学生数据-2026-01-23.sql` - **立即执行**
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- `peidu/sql/🔍检查学生数据-2026-01-23.sql` - 诊断用
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### 后端日志
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```
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2026-01-23 12:22:33 [http-nio-8080-exec-2] WARN com.peidu.service.impl.GrowthRecordServiceImpl - ⚠️ 学生不存在，studentId: 1，返回空列表
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```
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---
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## ✅ 修复检查清单
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- [ ] 执行SQL创建学生数据
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- [ ] 验证学生数据已创建
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- [ ] 验证成长记录能关联到学生
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- [ ] 刷新小程序
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- [ ] 重新测试功能
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- [ ] 确认数据显示正常
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---
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## 🎯 修复完成后
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### 如果测试成功 ✅
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- 列表应该显示成长记录
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- 学生姓名应该显示"小明"
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- 所有数据显示正常
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### 如果还是空列表 ❌
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请检查:
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1. SQL是否执行成功
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2. student表中是否有id=1的记录
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3. deleted字段是否为0
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4. 后端日志是否还有"学生不存在"的警告
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---
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**立即执行SQL修复,然后刷新小程序测试!** 🚀
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---
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**创建时间**: 2026-01-23 12:25
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**状态**: 等待执行SQL修复
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