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datalog: dl-magic-query handles mixed EDB+IDB relations (225/225)
Bug: dl-magic-query was skipping EDB facts for relations that had
rules ("rule-headed"). When a single relation has both EDB facts
and rules deriving more (mixed EDB+IDB), the rewritten run would
miss the EDB portion entirely, producing too few or zero results.

Fix: copy ALL existing facts to the internal mdb regardless of
whether the relation has rules. EDB-only relations bring their
tuples; mixed relations bring both EDB and any pre-saturated IDB
(which the rewritten rules would re-derive anyway).

1 new test: link relation seeded with 3 EDB tuples plus a
recursive rule via via/2. dl-magic-query rooted at `a` returns
2 results (a→b direct, a→c via via(a,e), link(e,c)).
2026-05-08 10:41:36 +00:00

421 B

datalog scoreboard

225 / 225 passing (0 failure(s)).

Suite Passed Total Status
tokenize 26 26 ok
parse 18 18 ok
unify 28 28 ok
eval 30 30 ok
builtins 20 20 ok
semi_naive 8 8 ok
negation 10 10 ok
aggregates 19 19 ok
api 20 20 ok
magic 25 25 ok
demo 21 21 ok