This article is so poorly written it's hard to take it serious. The entire paragraph about the size of a UUID takes reading it three or four times before you can actually understand what the author means...
In what context would a primary key change, even when sharding? In my entire career I have yet to see it. Also any sane person would never sort random values. If you need sorting in your table, provide some kind of indexed timestamp.
In what context would a primary key change, even when sharding? In my entire career I have yet to see it. Also any sane person would never sort random values. If you need sorting in your table, provide some kind of indexed timestamp.