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Scaling Equi-Joins

Summary: AM-Join fuses Tree-Join and Broadcast-Join to scale equi-joins in shared-nothing systems, addressing join-key skew with robust load balancing. It supports all outer-join variants without deduplication or custom partitioning; IB-Join enables Small-Large outer-joins by keeping the small table in memory, with a Spark-based implementation delivering notable speedups. (summarized by gpt-5-nano on Feb 09 2026)

Paper ID
h35f1da397f763400
Venue
SIGMOD
Year
2022
Pagerank
4.9605343e-05
Overall Rank
11,915 | 20.14%
DOI
10.1145/3514221.3526042

Incoming Non-self Citations Over Time

No non-self incoming citations found for this paper in this database.

Authors

BibTeX Citation

@inproceedings{metwally_sigmod22,
        title = {{Scaling Equi-Joins}},
        author = {Metwally, Ahmed},
        series = {{SIGMOD} '22},
        booktitle = {Proceedings of the {ACM} {SIGMOD} International Conference on Management of Data},
        publisher = {Association for Computing Machinery},
        doi = {10.1145/3514221.3526042},
        url = {https://dl.acm.org/doi/10.1145/3514221.3526042},
        year = {2022}
}

Incoming Citations (Sorted by Pagerank)

Showing 1 of 1 citing papers.

Rank Citing Paper Year Venue Pagerank
11,555 Similarity Joins of Sparse Features 2024 SIGMOD 4.9605343e-05
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Outgoing Citations (Sorted by Pagerank)

Showing 29 of 29 cited papers.

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

Rank Cited Paper Year Venue Pagerank
76 Map-Reduce-Merge: Simplified Relational Data Processing on Large Clusters 2007 SIGMOD 0.00036932687
212 Sort vs. Hash Revisited: Fast Join Implementation on Modern Multi-Core CPUs 2009 VLDB 0.00024786576
249 A Performance Evaluation of Four Parallel Join Algorithms in a Shared-Nothing Multiprocessor Environment 1989 SIGMOD 0.00023099455
250 Multi-Core, Main-Memory Joins: Sort vs. Hash Revisited 2014 VLDB 0.00023080446
360 Design and Evaluation of Main Memory Hash Join Algorithms for Multi-core CPUs 2011 SIGMOD 0.00019959166
423 Massively Parallel Sort-Merge Joins in Main Memory Multi-Core Database Systems 2012 VLDB 0.00018450254
452 Mergeable Summaries 2012 PODS 0.00018032092
491 Practical Skew Handling in Parallel Joins 1992 VLDB 0.00017383221
610 Relational Joins on Graphics Processors 2008 SIGMOD 0.00015540189
799 A Comparison of Join Algorithms for Log Processing in MapReduce 2010 SIGMOD 0.00013839554
867 Processing Theta-Joins using MapReduce* 2011 SIGMOD 0.00013342302
885 Rack-Scale In-Memory Join Processing using RDMA 2015 SIGMOD 0.00013222753
928 The End of Slow Networks: It's Time for a Redesign 2016 VLDB 0.00013012601
1,025 High-Speed Query Processing over High-Speed Networks 2016 VLDB 0.00012396134
1,048 Accelerating Relational Databases by Leveraging Remote Memory and RDMA 2016 SIGMOD 0.00012302514
1,269 An Experimental Comparison of Thirteen Relational Equi-Joins in Main Memory 2016 SIGMOD 0.00011236561
1,296 From Theory to Practice: Efficient Join Query Evaluation in a Parallel Database System 2015 SIGMOD 0.00011119184
1,424 V-SMART-Join: A Scalable MapReduce Framework for All-Pair Similarity Joins of Multisets and Vectors 2012 VLDB 0.00010694144
1,439 Approximate Join Processing Over Data Streams 2003 SIGMOD 0.00010641857
1,675 Handling Data Skew in Parallel Joins in Shared-Nothing Systems 2008 SIGMOD 9.8993233e-05
2,002 Track Join: Distributed Joins with Minimal Network Traffic 2014 SIGMOD 9.189062e-05
2,806 Distributed Join Algorithms on Thousands of Cores 2017 VLDB 7.9657254e-05
2,827 To Partition, or Not to Partition, That is the Join Question in a Real System 2021 SIGMOD 7.9486247e-05
2,886 Efficient Join Algorithms For Large Database Tables in a Multi-GPU Environment 2021 VLDB 7.8911081e-05
3,056 MG-Join: A Scalable Join for Massively Parallel Multi-GPU Architectures 2021 SIGMOD 7.689069e-05
3,610 Scalable Distributed Stream Join Processing 2015 SIGMOD 7.1463915e-05
3,638 Advanced Join Strategies for Large-Scale Distributed Computation 2014 VLDB 7.1248634e-05
4,975 A Tight Lower Bound for Comparison-Based Quantile Summaries 2020 PODS 6.3194701e-05
9,885 Constructing Join Histograms from Histograms with q-error Guarantees 2016 SIGMOD 5.1037041e-05
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