58 lines
1.5 KiB
MySQL
58 lines
1.5 KiB
MySQL
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-- ============================================
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-- 诊断 userId=1 的消息数据问题
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-- 创建时间: 2026-01-27
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-- ============================================
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-- 1. 检查用户1是否存在
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SELECT '=== 检查用户1是否存在 ===' AS step;
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SELECT * FROM user WHERE id = 1;
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-- 2. 检查用户1的消息数量
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SELECT '=== 检查用户1的消息数量 ===' AS step;
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SELECT COUNT(*) as total_messages FROM message WHERE user_id = 1 OR receiver_id = 1;
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-- 3. 检查是否有异常的消息记录（NULL字段）
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SELECT '=== 检查异常消息记录 ===' AS step;
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SELECT * FROM message
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WHERE (user_id = 1 OR receiver_id = 1)
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AND (
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id IS NULL
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OR user_id IS NULL
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OR receiver_id IS NULL
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OR content IS NULL
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OR created_time IS NULL
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)
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LIMIT 10;
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-- 4. 检查消息表结构
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SELECT '=== 检查消息表结构 ===' AS step;
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DESCRIBE message;
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-- 5. 查看用户1最近的消息记录
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SELECT '=== 用户1最近的消息记录 ===' AS step;
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SELECT * FROM message
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WHERE user_id = 1 OR receiver_id = 1
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ORDER BY created_time DESC
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LIMIT 10;
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-- 6. 检查是否有外键约束问题
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SELECT '=== 检查外键约束 ===' AS step;
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SELECT
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TABLE_NAME,
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COLUMN_NAME,
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CONSTRAINT_NAME,
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REFERENCED_TABLE_NAME,
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REFERENCED_COLUMN_NAME
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FROM INFORMATION_SCHEMA.KEY_COLUMN_USAGE
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WHERE TABLE_NAME = 'message'
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AND REFERENCED_TABLE_NAME IS NOT NULL;
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-- 7. 检查未读消息统计
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SELECT '=== 检查未读消息统计 ===' AS step;
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SELECT
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receiver_id,
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COUNT(*) as unread_count
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FROM message
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WHERE receiver_id = 1 AND is_read = 0
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GROUP BY receiver_id;
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