Conjunctive-Query Containment and Constraint Satisfaction
Summary: Shows that conjunctive-query containment and constraint satisfaction coincide as homomorphism problems A→B, unifying CQ containment with the CSP perspective. Proves three families of non‑uniform tractable CSPs uniformize—Boolean (via binarization), Datalog with bounded distinct variables, and bounded-treewidth queries—yielding PTIME cases for CQ containment. (summarized by gpt-5-mini on Feb 09 2026)
Incoming Non-self Citations Over Time
Authors
- 1. Phokion G. Kolaitis (University of California Santa Cruz)
- 2. Moshe Y. Vardi (Rice University)
BibTeX Citation
@inproceedings{kolaitis_pods98,
address = {New York, NY, USA},
series = {{PODS} '98},
title = {{Conjunctive-Query Containment and Constraint Satisfaction}},
url = {https://dl.acm.org/doi/10.1145/275487.275511},
doi = {10.1145/275487.275511},
booktitle = {Proceedings of the {ACM} {SIGMOD} Symposium on {Principles} of {Database} {Systems}},
publisher = {Association for Computing Machinery},
author = {Kolaitis, Phokion G. and Vardi, Moshe Y.},
year = {1998}
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Outgoing Citations (Sorted by Pagerank)
Showing 3 of 3 cited papers.
Citations counted here include only citations to other VLDB/SIGMOD/CIDR/PODS papers in this database.
| Rank | Cited Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 72 | Answering Queries Using Views (Extended Abstract) | 1995 | PODS | 0.00037549176 |
| 301 | Answering Queries Using Templates With Binding Patterns (Extended Abstract) | 1995 | PODS | 0.00021682744 |
| 794 | On the Complexity of Bounded-Variable Queries | 1995 | PODS | 0.00013941847 |
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