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COMPASS: Online Sketch-based Query Optimization for In-Memory Databases

Summary: COMPASS: online, sketch-based optimization for in-memory DBs using Fast-AGMS as a single statistics source. Push-down selections and online sketch updates; incremental sketches on the join graph improve plans and reduce runtime. (summarized by gpt-5-nano on Feb 09 2026)

Paper ID
hb9e7a62adee7082b
Venue
SIGMOD
Year
2021
Pagerank
6.3188773e-05
Overall Rank
5,003 | 66.37%
DOI
10.1145/3448016.3452840

Incoming Non-self Citations Over Time

Authors

BibTeX Citation

@inproceedings{izenov_sigmod21,
        title = {{COMPASS: Online Sketch-based Query Optimization for In-Memory Databases}},
        author = {Izenov, Yesdaulet and Datta, Asoke and Rusu, Florin and Shin, Jun Hyung},
        series = {{SIGMOD} '21},
        booktitle = {Proceedings of the {ACM} {SIGMOD} International Conference on Management of Data},
        publisher = {Association for Computing Machinery},
        doi = {10.1145/3448016.3452840},
        url = {https://dl.acm.org/doi/10.1145/3448016.3452840},
        year = {2021}
}

Incoming Citations (Sorted by Pagerank)

Showing 14 of 14 citing papers.

Rank Citing Paper Year Venue Pagerank
5,241 FASTgres: Making Learned Query Optimizer Hinting Effective 2023 VLDB 6.2154384e-05
7,410 POLAR: Adaptive and Non-invasive Join Order Selection via Plans of Least Resistance 2024 VLDB 5.5342768e-05
7,566 Convolution and Cross-Correlation of Count Sketches Enables Fast Cardinality Estimation of Multi-Join Queries 2024 SIGMOD 5.4952834e-05
7,637 Stingy Sketch: A Sketch Framework for Accurate and Fast Frequency Estimation 2022 VLDB 5.477389e-05
7,873 Double-Anonymous Sketch: Achieving Top-K-fairness for Finding Global Top-K Frequent Items 2023 SIGMOD 5.4357887e-05
8,035 JoinSketch: A Sketch Algorithm for Accurate and Unbiased Inner-Product Estimation 2023 SIGMOD 5.4025473e-05
8,477 TreeSensing: Linearly Compressing Sketches with Flexibility 2023 SIGMOD 5.3332727e-05
9,893 Approximate Sketches 2024 SIGMOD 5.1134687e-05
10,205 Turbo-Charging SPJ Query Plans with Learned Physical Join Operator Selections 2022 VLDB 5.0603873e-05
10,336 An Elephant Under The Microscope: Analyzing The Interaction Of Optimizer Components In PostgreSQL 2025 SIGMOD 5.0200193e-05
10,507 Sublime: Sublinear Error & Space for Unbounded Skewed Streams 2026 SIGMOD 4.9793485e-05
10,627 CorrBound: Cardinality Estimation Accounting for Inter- and Intra-relation Correlations 2026 SIGMOD 4.9793485e-05
11,507 Sub-optimal Join Order Identification with L1-error 2024 SIGMOD 4.9793485e-05
11,538 A Universal Sketch for Estimating Heavy Hitters and Per-Element Frequency Moments in Data Streams with Bounded Deletions 2024 SIGMOD 4.9793485e-05
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Outgoing Citations (Sorted by Pagerank)

Showing 26 of 26 cited papers.

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

Rank Cited Paper Year Venue Pagerank
15 How Good Are Query Optimizers, Really? 2016 VLDB 0.00061066921
40 The Case for Learned Index Structures 2018 SIGMOD 0.00046284649
53 Eddies: Continuously Adaptive Query Processing 2000 SIGMOD 0.00040860054
85 Learned Cardinalities: Estimating Correlated Joins with Deep Learning 2019 CIDR 0.00035864347
91 On the Propagation of Errors in the Size of Join Results 1991 SIGMOD 0.0003475226
103 Selectivity Estimation Without the Attribute Value Independence Assumption 1997 VLDB 0.00033894985
145 Neo: A Learned Query Optimizer 2019 VLDB 0.0002908188
149 Efficient Mid-Query Re-Optimization of Sub-Optimal Query Execution Plans 1998 SIGMOD 0.00028981723
272 An Overview of Query Optimization in Relational Systems 1998 PODS 0.00022509573
402 Worst-case Optimal Join Algorithms 2012 PODS 0.00019104625
428 Tracking Join and Self-Join Sizes in Limited Storage 1999 PODS 0.0001845349
688 Cardinality Estimation Done Right: Index-Based Join Sampling 2017 CIDR 0.00014753664
692 Selectivity Estimation for Range Predicates using Lightweight Models 2019 VLDB 0.00014741011
750 Join Size Estimation Subject to Filter Conditions 2015 VLDB 0.00014265196
842 Processing Complex Aggregate Queries over Data Streams 2002 SIGMOD 0.00013540697
1,066 Sketching Streams Through the Net: Distributed Approximate Query Tracking 2005 VLDB 0.00012192801
1,465 Pessimistic Cardinality Estimation: Tighter Upper Bounds for Intermediate Join Cardinalities 2019 SIGMOD 0.00010576304
1,508 Self-Tuning, GPU-Accelerated Kernel Density Models for Multidimensional Selectivity Estimation 2015 SIGMOD 0.00010440205
1,542 Improved Selectivity Estimation by Combining Knowledge from Sampling and Synopses 2018 VLDB 0.00010308631
1,603 SkinnerDB: Regret-Bounded Query Evaluation via Reinforcement Learning 2019 SIGMOD 0.00010097649
1,891 CS2: A New Database Synopsis for Query Estimation 2013 SIGMOD 9.4184294e-05
2,172 A Black-Box Approach to Query Cardinality Estimation 2007 CIDR 8.9214171e-05
2,216 Estimating Join Selectivities using Bandwidth-Optimized Kernel Density Models 2017 VLDB 8.8177753e-05
3,271 Estimating Cardinalities with Deep Sketches 2019 SIGMOD 7.4744941e-05
3,927 Statistical Analysis of Sketch Estimators 2007 SIGMOD 6.9192361e-05
6,800 ROX: Run-time Optimization of XQueries 2009 SIGMOD 5.6792071e-05
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