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PilotDB: Database-Agnostic Online Approximate Query Processing with A Priori Error Guarantees

Summary: PilotDB provides database-agnostic online AQP with a priori error guarantees using TAQA; BSAP enables fast block-level sampling. Prototype middleware on PostgreSQL, SQL Server, DuckDB; up to 126x speedups at 5% guaranteed error, with no DBMS changes. (summarized by gpt-5-nano on Feb 09 2026)

Paper ID
7254
Venue
SIGMOD
Year
2025
Pagerank
4.1945683e-05
Overall Rank
10,497 | 26.98%
DOI
10.1145/3725335

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Showing 46 of 46 cited papers.

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

Rank Cited Paper Year Venue Pagerank
14 Online Aggregation 1997 SIGMOD 0.0010801504
18 On Random Sampling over Joins 1999 SIGMOD 0.00092385438
28 Accurate Estimation Of The Number Of Tuples Satisfying A Condition 1984 SIGMOD 0.00080435857
46 Simple Random Sampling from Relational Databases 1986 VLDB 0.00070894702
64 Improved Histograms for Selectivity Estimation of Range Predicates 1996 SIGMOD 0.00063612837
185 DuckDB: an Embeddable Analytical Database 2019 SIGMOD 0.00036538405
211 Join Synopses for Approximate Query Answering 1999 SIGMOD 0.00033981214
217 Ripple Joins for Online Aggregation 1999 SIGMOD 0.00033536712
315 Error-Constrained COUNT Query Evaluation in Relational Databases 1991 SIGMOD 0.0002802103
429 The Aqua Approximate Query Answering System 1999 SIGMOD 0.00023476494
739 Congressional Samples for Approximate Answering of Group-By Queries 2000 SIGMOD 0.00017401518
967 Aqua: A Fast Decision Support System Using Approximate Query Answers 1999 VLDB 0.00014959939
1,204 VerdictDB: Universalizing Approximate Query Processing 2018 SIGMOD 0.00013319541
1,260 Dynamic Sample Selection for Approximate Query Processing 2003 SIGMOD 0.00012993347
1,323 Quickr: Lazily Approximating Complex AdHoc Queries in BigData Clusters 2016 SIGMOD 0.00012601997
1,335 ICICLES: Self-tuning Samples for Approximate Query Answering 2000 VLDB 0.00012502131
1,369 Random Sampling over Joins Revisited 2018 SIGMOD 0.00012339777
1,425 Scalable Approximate Query Processing With The DBO Engine 2007 SIGMOD 0.00012051353
1,464 Online Aggregation for Large MapReduce Jobs 2011 VLDB 0.00011865546
1,574 Approximate Query Processing: No Silver Bullet 2017 SIGMOD 0.00011287495
2,355 G-OLA: Generalized On-Line Aggregation for Interactive Analysis on Big Data 2015 SIGMOD 8.9677847e-05
2,365 The Analytical Bootstrap: a New Method for Fast Error Estimation in Approximate Query Processing 2014 SIGMOD 8.9551432e-05
2,501 DBEst: Revisiting Approximate Query Processing Engines with Machine Learning Models 2019 SIGMOD 8.6453446e-05
2,843 A General-Purpose Counting Filter: Making Every Bit Count 2017 SIGMOD 8.0257314e-05
2,985 DSB: A Decision Support Benchmark for Workload-Driven and Traditional Database Systems 2021 VLDB 7.7795847e-05
2,995 A Sampling Algebra for Aggregate Estimation 2013 VLDB 7.7587199e-05
3,076 Learning a Partitioning Advisor for Cloud Databases 2020 SIGMOD 7.6107677e-05
3,154 The MemSQL Query Optimizer: A modern optimizer for real-time analytics in a distributed database 2016 VLDB 7.4686089e-05
3,167 Relational Confidence Bounds Are Easy With The Bootstrap* 2005 SIGMOD 7.4523397e-05
3,842 Turbo-Charging Estimate Convergence in DBO 2009 VLDB 6.7102374e-05
4,030 Revisiting Reuse for Approximate Query Processing 2017 VLDB 6.5129665e-05
4,712 Accelerating Approximate Aggregation Queries with Expensive Predicates 2021 VLDB 5.9787986e-05
4,831 DigitHist: a Histogram-Based Data Summary with Tight Error Bounds 2017 VLDB 5.8924198e-05
5,581 CliffGuard: A Principled Framework for Finding Robust Database Designs 2015 SIGMOD 5.424205e-05
5,810 Database Benchmarking for Supporting Real-Time Interactive Querying of Large Data 2020 SIGMOD 5.3178017e-05
5,868 ABS: a System for Scalable Approximate Queries with Accuracy Guarantees 2014 SIGMOD 5.2959352e-05
6,340 Apache Arrow DataFusion: A Fast, Embeddable, Modular Analytic Query Engine 2024 SIGMOD 5.1051018e-05
6,411 Approximate Query Engines: Commercial Challenges and Research Opportunities 2017 SIGMOD 5.0752468e-05
6,493 Joins on Samples: A Theoretical Guide for Practitioners 2020 VLDB 5.0424713e-05
7,928 Accelerating Aggregation Queries on Unstructured Streams of Data 2023 VLDB 4.613455e-05
8,599 Bias-Aware Sketches 2017 VLDB 4.4879268e-05
8,622 ProgressiveDB – Progressive Data Analytics as a Middleware 2019 VLDB 4.4834877e-05
9,074 Making Data Clouds Smarter at Keebo: Automated Warehouse Optimization using Data Learning 2023 SIGMOD 4.402065e-05
9,948 DeepOLA: Online Aggregation for Deeply Nested Queries 2022 SIGMOD 4.2421586e-05
9,949 AB-tree: Index for Concurrent Random Sampling and Updates 2022 VLDB 4.2421586e-05
9,950 Distributed Wavelet Thresholding for Maximum Error Metrics 2016 SIGMOD 4.2421586e-05
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