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fix: antijoin annotation passing #5

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fix: antijoin annotation passing #5

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14 changes: 14 additions & 0 deletions test/erdos/algo/leapfrog/triejoin_test.clj
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Original file line number Diff line number Diff line change
Expand Up @@ -600,3 +600,17 @@
(is (= [{:a 2 :b 6} {:a 3 :b 7}]
(relations (omit rel [:a :b] +)))))))

(deftest trie-antijoin-leaf-annotations
(testing "antijoin passes through clause-side leaf annotations"
;; Antijoin is a gate, not a combiner — surviving clause tuples must
;; expose their original leaf annotation.
(let [a (annotated-trie [:x :y] {[1 10] {:mult 2}
[1 20] {:mult 3}
[2 30] {:mult 5}})
;; Mask out [1 10]; [1 20] and [2 30] should survive.
b (annotated-trie [:x :y] {[1 10] {}})
aj (trie-antijoin a b)]
(is (= #{[[1 20] {:mult 3}] [[2 30] {:mult 5}]}
(set (annotated-routes (:trie-iterator aj) 2)))))))


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