![image.png](http://cdn.demongao.com/halo/image_1589100281208.png)
![image.png](http://cdn.demongao.com/halo/image_1589100286819.png)
![image.png](http://cdn.demongao.com/halo/image_1589100292800.png)
给order字段加上索引后成功解决
[文章](https://blog.csdn.net/toubaokewu/article/details/78592868)
[文章2](https://bbs.csdn.net/topics/392190327?page=1)
【神奇的sql】order by 与where 和limit结合后神奇效果