Unanswered: Maximum display width on Integer types !?
I'm in my first days with MySQL and I have a doubt about something I've just read in the manual.
They talk about a maximum display width for integer types (!?): M indicates the maximum display width for integer types. For floating-point and fixed-point types, M is the total number of digits. For string types, M is the maximum length. The maximum allowable value of M depends on the data type.
I understand what's is this on String types as it make sense. As well as floating and fixed points, where you should specify the digits/decimals.
But I just don't get it what the heck has a "display" to do with database storage related to an Integer type ?
What's display about !? Display what ? where ?