A funny bit: >I started googling for a way to do set-intersection in Postgres without using the && and it wasn’t going anywhere. That's what SQL was made for!

A funny bit: >I started googling for a way to do set-intersection in Postgres without using the && and it wasn’t going anywhere. That's what SQL was made for! It's called 'join'. Perhaps is wasn't the best idea to store session's urls in an array and not in a table. (It's called normalization.)