same database structure and index, but different query speed and explain results

前端 未结 0 1811
萌比男神i
萌比男神i 2021-01-27 00:46

I have 2 MySQL databases on 2 separate cloud servers. One is setup by my colleague and I duplicated that one with same structures.

Days ago I found a query on my database

相关标签:
回答
  • 消灭零回复
提交回复
热议问题