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First-Order Rewritability in Consistent Query Answering with Respect to Multiple Keys

Summary: Extends consistent query answering under key dependencies to schemas allowing multiple keys per relation, focusing on self-join-free Boolean conjunctive queries. Proves decidability of FO-rewritability and provides an effective procedure to construct an FO rewriting when one exists. (summarized by gpt-5-mini on Feb 09 2026)

Paper ID
h26748c79c75cc3df
Venue
PODS
Year
2020
Pagerank
5.1952088e-05
Overall Rank
9,314 | 37.40%
DOI
10.1145/3375395.3387654

Incoming Non-self Citations Over Time

Authors

BibTeX Citation

@inproceedings{koutris_pods20,
        address = {New York, NY, USA},
        series = {{PODS} '20},
        title = {{First-Order Rewritability in Consistent Query Answering with Respect to Multiple Keys}},
        url = {https://dl.acm.org/doi/10.1145/3375395.3387654},
        doi = {10.1145/3375395.3387654},
        booktitle = {Proceedings of the {ACM} {SIGMOD} Symposium on {Principles} of {Database} {Systems}},
        publisher = {Association for Computing Machinery},
        author = {Koutris, Paraschos and Wijsen, Jef},
        year = {2020}
}

Incoming Citations (Sorted by Pagerank)

Showing 7 of 7 citing papers.

Rank Citing Paper Year Venue Pagerank
6,814 Benchmarking Approximate Consistent Query Answering 2021 PODS 5.6736541e-05
7,711 Consistent Query Answering for Primary Keys on Path Queries 2021 PODS 5.4711392e-05
11,102 Rewriting Consistent Answers on Annotated Data 2025 PODS 4.9769913e-05
11,475 Consistent Query Answering for Primary Keys on Rooted Tree Queries 2024 PODS 4.9769913e-05
11,500 Computing Range Consistent Answers to Aggregation Queries via Rewriting 2024 PODS 4.9769913e-05
11,705 LinCQA: Faster Consistent Query Answering with Linear Time Guarantees 2023 SIGMOD 4.9769913e-05
11,839 A Dichotomy in Consistent Query Answering for Primary Keys and Unary Foreign Keys 2022 PODS 4.9769913e-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
33 Consistent Query Answers in Inconsistent Databases 1999 PODS 0.00049326063
1,362 Computing Optimal Repairs for Functional Dependencies 2018 PODS 0.00010912749
1,737 The Data Complexity of Consistent Query Answering for Self-Join-Free Conjunctive Queries Under Primary Key Constraints 2015 PODS 9.7499517e-05
2,614 Database Repairs and Consistent Query Answering: Origins and Further Developments 2019 PODS 8.2221507e-05
5,892 Consistent Query Answering for Primary Keys and Conjunctive Queries with Negated Atoms 2018 PODS 5.9541051e-05
7,232 On the First-order Expressibility of Computing Certain Answers to Conjunctive Queries over Uncertain Databases 2010 PODS 5.5769079e-05
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# Overall Rank Paper Year Venue
1 8,801 Charting the Tractability Frontier of Certain Conjunctive Query Answering 2013 PODS
2 897 On the Decidability and Complexity of Query Answering over Inconsistent and Incomplete Databases 2003 PODS
3 7,232 On the First-order Expressibility of Computing Certain Answers to Conjunctive Queries over Uncertain Databases 2010 PODS
4 1,737 The Data Complexity of Consistent Query Answering for Self-Join-Free Conjunctive Queries Under Primary Key Constraints 2015 PODS
5 12,507 Certain Query Answering in Partially Consistent Databases 2014 VLDB
6 11,839 A Dichotomy in Consistent Query Answering for Primary Keys and Unary Foreign Keys 2022 PODS
7 11,475 Consistent Query Answering for Primary Keys on Rooted Tree Queries 2024 PODS
8 7,711 Consistent Query Answering for Primary Keys on Path Queries 2021 PODS
9 5,892 Consistent Query Answering for Primary Keys and Conjunctive Queries with Negated Atoms 2018 PODS
10 11,102 Rewriting Consistent Answers on Annotated Data 2025 PODS