Bag Semantics Conjunctive Query Containment. Four Small Steps Towards Undecidability.
Summary: Bag-semantics conjunctive query containment, advancing beyond set-based results in QCP_CQ. Four small steps toward undecidability show generalized bag-QCP_CQ is undecidable; for boolean CQs phi_s, phi_b and a linear F, deciding F(phi_s(D)) <= phi_b(D) for all databases D is undecidable. (summarized by gpt-5-nano on Feb 09 2026)
Incoming Non-self Citations Over Time
Authors
- 1. Jerzy Marcinkowski (University of Wroclaw)
- 2. Mateusz Orda (University of Wroclaw)
BibTeX Citation
@inproceedings{marcinkowski_pods24,
address = {New York, NY, USA},
series = {{PODS} '24},
title = {{Bag Semantics Conjunctive Query Containment. Four Small Steps Towards Undecidability.}},
url = {https://dl.acm.org/doi/10.1145/3651604},
doi = {10.1145/3651604},
booktitle = {Proceedings of the {ACM} {SIGMOD} Symposium on {Principles} of {Database} {Systems}},
publisher = {Association for Computing Machinery},
author = {Marcinkowski, Jerzy and Orda, Mateusz},
year = {2024}
}Incoming Citations (Sorted by Pagerank)
Showing 2 of 2 citing papers.
| Rank | Citing Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 10,175 | Bag Semantics Query Containment: The CQ vs. UCQ Case and Other Stories | 2026 | PODS | 5.093636e-05 |
| 10,901 | STsCache: An Efficient Semantic Caching Scheme for Time-series Data Workloads Based on Hybrid Storage | 2025 | VLDB | 5.093636e-05 |
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Outgoing Citations (Sorted by Pagerank)
Showing 6 of 6 cited papers.
Citations counted here include only citations to other VLDB/SIGMOD/CIDR/PODS papers in this database.
| Rank | Cited Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 309 | Optimization of Real Conjunctive Queries | 1993 | PODS | 0.00021768596 |
| 1,269 | The Containment Problem for Real Conjunctive Queries with Inequalities | 2006 | PODS | 0.000113935 |
| 3,457 | Bag Query Containment and Information Theory | 2020 | PODS | 7.3981641e-05 |
| 3,498 | Attacking Diophantus: Solving a Special Case of Bag Containment | 2019 | PODS | 7.3629798e-05 |
| 6,166 | Classification of Annotation Semirings over Query Containment | 2012 | PODS | 5.952604e-05 |
| 6,542 | Determinacy of Real Conjunctive Queries. The Boolean Case | 2022 | PODS | 5.8466322e-05 |
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