cljspad + datascript

datascript.cljs

(require '[datascript.core :as d])

;; Example from datascript README
;; https://github.com/tonsky/datascript

(def schema {:aka {:db/cardinality :db.cardinality/many}})

(def conn (d/create-conn schema))

(d/transact! conn [ { :db/id -1
                    :name  "Maksim"
                    :age   45
                    :aka   ["Max Otto von Stierlitz", "Jack Ryan"] } ])

;; Implicit join, multi-valued attribute
(def query-result
 (d/q '[ :find  ?n ?a
          :where [?e :aka "Max Otto von Stierlitz"]
                 [?e :name ?n]
                 [?e :age  ?a] ]
       @conn))

(prn query-result)
(write-output (str "Result is: " (pr-str query-result)))