Spatial Joins in Main Memory: Implementation Matters!
Summary: Reexamines ten in-memory spatial joins, showing that implementation choices—not just algorithms or data structures—can dominate runtime. A careful reimplementation of the previously worst method outperforms all competitors, challenging conclusions drawn from main-memory benchmarks. (summarized by gpt-5.6-luna on Jul 24 2026)
Incoming Non-self Citations Over Time
Authors
- 1. Darius Šidlauskas (Aarhus University)
- 2. Christian S. Jensen (Aalborg University)
BibTeX Citation
@article{sidlauskas_vldb15,
title = {{Spatial Joins in Main Memory: Implementation Matters!}},
author = {Šidlauskas, Darius and Jensen, Christian S.},
journal = {PVLDB},
series = {{VLDB} '15},
volume = {8},
number = {1},
pages = {97--100},
doi = {10.14778/2735508.2735509},
url = {https://doi.org/10.14778/2735508.2735509},
year = {2015}
}Incoming Citations (Sorted by Pagerank)
Showing 4 of 4 citing papers.
| Rank | Citing Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 5,851 | k-Nearest Neighbors on Road Networks: A Journey in Experimentation and In-Memory Implementation | 2016 | VLDB | 6.0659596e-05 |
| 8,057 | Architecting a Query Compiler for Spatial Workloads | 2020 | SIGMOD | 5.4982831e-05 |
| 8,499 | THERMAL-JOIN: A Scalable Spatial Join for Dynamic Workloads | 2015 | SIGMOD | 5.4133616e-05 |
| 9,544 | SwiftSpatial: Spatial Joins on Modern Hardware | 2025 | SIGMOD | 5.2528121e-05 |
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Outgoing Citations (Sorted by Pagerank)
Showing 4 of 4 cited papers.
Citations counted here include only citations to other VLDB/SIGMOD/CIDR/PODS papers in this database.
| Rank | Cited Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 2 | R-Trees: A Dynamic Index Structure For Spatial Searching | 1984 | SIGMOD | 0.0020210012 |
| 1,978 | Optimizing Multidimensional Index Trees for Main Memory Access | 2001 | SIGMOD | 9.3627341e-05 |
| 4,740 | An Experimental Analysis of Iterated Spatial Joins in Main Memory | 2013 | VLDB | 6.5283833e-05 |
| 5,740 | A Benchmark for Evaluating Moving Object Indexes | 2008 | VLDB | 6.1035012e-05 |
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Semantically Similar Papers
| # | Overall Rank | Paper | Year | Venue |
|---|---|---|---|---|
| 1 | 8,904 | A Design Space Exploration and Evaluation for Main-Memory Hash Joins in Storage Class Memory | 2023 | VLDB |
| 2 | 8,796 | The Impact of Global Clustering on Spatial Database Systems | 1994 | VLDB |
| 3 | 2,310 | Spatial Joins Using Seeded Trees | 1994 | SIGMOD |
| 4 | 145 | Efficient Processing of Spatial Joins Using R-trees | 1993 | SIGMOD |
| 5 | 1,880 | Scalable Sweeping-Based Spatial Join | 1998 | VLDB |
| 6 | 1,355 | Query Processing in Main Memory Database Management Systems | 1986 | SIGMOD |
| 7 | 360 | Design and Evaluation of Main Memory Hash Join Algorithms for Multi-core CPUs | 2011 | SIGMOD |
| 8 | 7,842 | Processing and Optimizing Main Memory Spatial-Keyword Queries | 2016 | VLDB |
| 9 | 1,265 | An Experimental Comparison of Thirteen Relational Equi-Joins in Main Memory | 2016 | SIGMOD |
| 10 | 4,740 | An Experimental Analysis of Iterated Spatial Joins in Main Memory | 2013 | VLDB |