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cs.DB2026
Lexicographic Direct Access with Functional Dependencies
Florent Capelli, Nofar Carmeli, Stefan Mengel
We study the complexity of lexicographic direct access to join query answers over databases that satisfy functional dependencies (FDs). More precisely, we give fine-grained lower a…
cs.DB2026
Let's Play Tag: Linear Time Evaluation of Conjunctive Queries under TGD Constraints
Nofar Carmeli, Carsten Lutz, Marcin Przybyłko
We study the limits of linear time evaluation of conjunctive queries under constraints expressed as tuple-generating dependencies (TGDs), across several modes of query evaluation:…