Towards Parameterized Hardness on Maintaining Conjunctive Queries
Summary: Introduces height and dimension parameters yielding conditional update-time lower bounds Ω(|D|^{1−1/max(k,d)−ε}), surpassing the long-standing square-root barrier for free-connex queries. For star queries, matches these bounds with an instance-sensitive generalized H-index algorithm. (summarized by gpt-5.6-luna on Jul 26 2026)
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Authors
- 1. Qichen Wang (Nanyang Technological University)
BibTeX Citation
@inproceedings{wang_pods26,
address = {New York, NY, USA},
series = {{PODS} '26},
title = {{Towards Parameterized Hardness on Maintaining Conjunctive Queries}},
url = {https://dl.acm.org/doi/10.1145/3801917},
doi = {10.1145/3801917},
booktitle = {Proceedings of the {ACM} {SIGMOD} Symposium on {Principles} of {Database} {Systems}},
publisher = {Association for Computing Machinery},
author = {Wang, Qichen},
year = {2026}
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