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The Complexity of Boolean Conjunctive Queries with Intersection Joins

Summary: Reduce BCQs with intersection joins to disjunctions of equality-join BCQs, yielding ij-width that exactly captures their complexity. Define iota-acyclicity (alpha-acyclicity analogue) characterising near-linear evaluation; non-iota queries are triangle-hard. (summarized by gpt-5-mini on Feb 09 2026)

Paper ID
hbc7bd555c2eae0da
Venue
PODS
Year
2022
Pagerank
5.6342744e-05
Overall Rank
6,955 | 53.24%
DOI
10.1145/3517804.3524156

Incoming Non-self Citations Over Time

Authors

BibTeX Citation

@inproceedings{khamis_pods22,
        address = {New York, NY, USA},
        series = {{PODS} '22},
        title = {{The Complexity of Boolean Conjunctive Queries with Intersection Joins}},
        url = {https://dl.acm.org/doi/10.1145/3517804.3524156},
        doi = {10.1145/3517804.3524156},
        booktitle = {Proceedings of the {ACM} {SIGMOD} Symposium on {Principles} of {Database} {Systems}},
        publisher = {Association for Computing Machinery},
        author = {Khamis, Mahmoud Abo and Chichirim, George and Kormpa, Antonia and Olteanu, Dan},
        year = {2022}
}

Incoming Citations (Sorted by Pagerank)

Showing 4 of 4 citing papers.

Rank Citing Paper Year Venue Pagerank
6,876 Insert-Only versus Insert-Delete in Dynamic Query Evaluation 2024 PODS 5.6586279e-05
7,292 Computing the Difference of Conjunctive Queries Efficiently 2023 SIGMOD 5.5642569e-05
10,854 Worst-Case Optimal BGPs on Temporal Graphs 2026 VLDB 4.9793485e-05
11,489 Optimal (Multiway) Spatial Joins 2024 PODS 4.9793485e-05
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Outgoing Citations (Sorted by Pagerank)

Showing 13 of 13 cited papers.

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

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