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A Dichotomy in Consistent Query Answering for Primary Keys and Unary Foreign Keys

Summary: Dichotomy for CERTAINTY(q) with primary keys plus unary foreign keys under symmetric-difference (XOR) repairs for self-join-free conjunctive queries: either admits a FO rewriting or not. Provides precise structural characterization separating the two cases. (summarized by gpt-5-mini on Feb 09 2026)

Paper ID
1881
Venue
PODS
Year
2022
Pagerank
5.093636e-05
Overall Rank
11,524 | 20.94%
DOI
10.1145/3517804.3524157

Incoming Non-self Citations Over Time

No non-self incoming citations found for this paper in this database.

Authors

BibTeX Citation

@inproceedings{hannula_pods22,
        address = {New York, NY, USA},
        series = {{PODS} '22},
        title = {{A Dichotomy in Consistent Query Answering for Primary Keys and Unary Foreign Keys}},
        url = {https://dl.acm.org/doi/10.1145/3517804.3524157},
        doi = {10.1145/3517804.3524157},
        booktitle = {Proceedings of the {ACM} {SIGMOD} Symposium on {Principles} of {Database} {Systems}},
        publisher = {Association for Computing Machinery},
        author = {Hannula, Miika and Wijsen, Jef},
        year = {2022}
}

Incoming Citations (Sorted by Pagerank)

Showing 2 of 2 citing papers.

Rank Citing Paper Year Venue Pagerank
11,121 Consistent Query Answering for Primary Keys on Rooted Tree Queries 2024 PODS 5.093636e-05
11,146 Computing Range Consistent Answers to Aggregation Queries via Rewriting 2024 PODS 5.093636e-05
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Outgoing Citations (Sorted by Pagerank)

Showing 14 of 14 cited papers.

Citations counted here include only citations to other VLDB/SIGMOD/CIDR/PODS papers in this database.

Rank Cited Paper Year Venue Pagerank
33 Consistent Query Answers in Inconsistent Databases 1999 PODS 0.00049907763
134 Testing Containment of Conjunctive Queries Under Functional and Inclusion Dependencies (Extended Abstract) 1982 PODS 0.00030343737
586 ConQuer: Efficient Management of Inconsistent Databases 2005 SIGMOD 0.00016124396
1,707 The Data Complexity of Consistent Query Answering for Self-Join-Free Conjunctive Queries Under Primary Key Constraints 2015 PODS 9.9625097e-05
2,551 Efficient Querying of Inconsistent Databases with Binary Integer Programming 2013 VLDB 8.4290374e-05
2,565 Database Repairs and Consistent Query Answering: Origins and Further Developments 2019 PODS 8.4116912e-05
5,258 Counting Database Repairs under Primary Keys Revisited 2019 PODS 6.2967016e-05
5,330 ConQuer: A System for Efficient Querying Over Inconsistent Databases 2005 VLDB 6.2631441e-05
5,619 An Operational Approach to Consistent Query Answering 2018 PODS 6.1483242e-05
5,773 Consistent Query Answering for Primary Keys and Conjunctive Queries with Negated Atoms 2018 PODS 6.0926349e-05
6,674 Benchmarking Approximate Consistent Query Answering 2021 PODS 5.8066263e-05
7,088 On the First-order Expressibility of Computing Certain Answers to Conjunctive Queries over Uncertain Databases 2010 PODS 5.7068548e-05
7,558 Consistent Query Answering for Primary Keys on Path Queries 2021 PODS 5.5993651e-05
9,133 First-Order Rewritability in Consistent Query Answering with Respect to Multiple Keys 2020 PODS 5.3169677e-05
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