Bounded Treewidth and the Infinite Core Chase: Complications and Workarounds toward Decidable Querying
Summary: Demonstrates that, due to the non-monotonic infinite core chase, existence of a treewidth-bounded universal model and a treewidth-bounded core-chase sequence can fail to coincide, via counterexamples in both directions. Proposes an aggregation scheme that preserves treewidth to produce a finitely universal model and defines a chase-based bounded-treewidth class (subsuming fes) that yields decidable CQ entailment. (summarized by gpt-5-mini on Feb 09 2026)
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| Rank | Cited Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 695 | The Chase Revisited | 2008 | PODS | 0.00018013323 |
| 1,737 | Generalized Schema-Mappings: From Termination To Tractability | 2009 | PODS | 0.00010711961 |
| 2,007 | Robbers, Marshals, and Guards: Game Theoretic and Logical Characterizations of Hypertree Width | 2001 | PODS | 9.8123766e-05 |
| 7,508 | Optimizing the Chase: Scalable Data Integration under Constraints | 2014 | VLDB | 4.7135369e-05 |
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