索引失效情况总结

https://blog.csdn.net/weixin_36586564/article/details/79641748?utm_medium=distribute.pc_relevant.none-task-blog-BlogCommendFromMachineLearnPai2-2.nonecase&depth_1-utm_source=distribute.pc_relevant.none-task-blog-BlogCommendFromMachineLearnPai2-2.nonecase

 

https://blog.csdn.net/wuseyukui/article/details/72312574