Instance-Optimal Acyclic Joins: From Theory to Systems
Summary: A tutorial on Yannakakis’ instance-optimal evaluation of acyclic joins via join trees, semijoin reduction, and information passing. Connects these theory-driven principles to robust SQL systems, query optimization, and extensions beyond acyclic multiway joins. (summarized by gpt-5.6-luna on Aug 28 2026)
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Authors
- 1. Paraschos Koutris (University of Wisconsin)
- 2. Stijn Vansummeren (University of Hasselt)
- 3. Qichen Wang (Nanyang Technological University)
- 4. Yisu Remy Wang (University of California Los Angeles)
- 5. Xiangyao Yu (University of Wisconsin)
BibTeX Citation
@article{koutris_vldb26,
title = {{Instance-Optimal Acyclic Joins: From Theory to Systems}},
author = {Koutris, Paraschos and Vansummeren, Stijn and Wang, Qichen and Wang, Yisu Remy and Yu, Xiangyao},
journal = {PVLDB},
series = {{VLDB} '26},
volume = {19},
number = {12},
pages = {4884--4887},
doi = {10.14778/3827998.3828144},
url = {https://doi.org/10.14778/3827998.3828144},
year = {2026}
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