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:union

Set union, returns rows in the left relations and each right relation. Accepts multiple tables/queries as parameters. Same kind of thing as clojure.set/union.

Examples

(def Mary
  [[:from :Customer] 
   [:where [= :firstname "Mary"]]])

(def John 
  [[:from :Customer]
   [:where [= :firstname "John"]]])

(def JohnAndMary
  [[:from John]
   [:union Mary]])

;; union doesn't need a left side
;; the below would also work.
[[:union John Mary]]

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