Show HN: modern relational algebrahttp://www.try-alf.org/?src=Z3JvdXAoc3VwcGxpZXJzLCBbOnNpZCwgOm5hbWUsIDpzdGF0dXNdLCA6aW5fY2l0eSk by blambeau • 12 years ago 1 0 12 years agoTRtry-alf.org