By that I mean, forming a Hash Array Mapped Trie with 2 or more indexed fields, such as a User model by email and location name, or email + username + last logged in + isActive. Basically any arbitrary number of columns of any type of field (boolean, int, string, pretty much).
I am just learning about HAMTs, but don't yet see exactly how they work. I understand how tries and hashtables work though.
My question is how it would look to describe a HAMT that works as a multi-column index.
