Apr 6, 2017 3:03:43 PM by Juan Carlos Olamendy
This is a companion discussion topic for the original entry at https://blog.toadworld.com/2017/04/06/speed-up-your-queries-using-the-covering-index-in-mysql#:~:text=A%20covering%20index%20is%20a,having%20to%20execute%20additional%20reads