Clojurians Log v2

in v2, what's the right syntax for referring to namespaced columns? e.g.:

(xt/q node "select * from users")
=> [{:xt/id 1, :age 20, :user/email ""}]

;; works
(xt/q node ["select * from users where age = ?" 20])
=> [{:xt/id 1, :age 20, :user/email ""}]

;; doesn't work
(xt/q node ["select * from users where user/email = ?" ""])
=> []