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Update mysql-logs.md

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docs/database/mysql/mysql-logs.md
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@ -112,7 +112,7 @@ InnoDB 将 redo log 刷到磁盘上有几种情况：
![](https://oss.javaguide.cn/github/javaguide/10.png) ![](https://oss.javaguide.cn/github/javaguide/10.png)
在个**日志文件组**中还有两个重要的属性，分别是 `write pos、checkpoint` 在这个**日志文件组**中还有两个重要的属性，分别是 `write pos、checkpoint`
- **write pos** 是当前记录的位置，一边写一边后移 - **write pos** 是当前记录的位置，一边写一边后移
- **checkpoint** 是当前要擦除的位置，也是往后推移 - **checkpoint** 是当前要擦除的位置，也是往后推移