[web2py] Question on DAL Field, unique tuple of fields possible ?

Hello, I'm hoping it's not a too stupid question as I'm new to web2py. I have a table which I fill with data about some games. Each game has an id but multiple players can possibly have played the same game. So I basically need to have the (game_id, player_id) couple to be unique, but not each

[web2py] Question on DAL

Forking this question from a different thread since changing topic. I've tried the welcome app n read through the docs, things were a breeze to set up. I'm now at the data modeling stage for my app. I'm quite familiar with bigtable, and most probably going to deploy my startup live on app-engine