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Are We Ready For Learned Cardinality Estimation?

Summary: Assess readiness of learned cardinality estimators for production; static workloads yield gains, but training/inference costs are high. Dynamic updates hurt accuracy; sensitivity to correlation, skew, and domain shifts; emphasizes cost control and trustworthiness. (summarized by gpt-5-nano on Feb 09 2026)

Paper ID
12352
Venue
VLDB
Year
2021
Pagerank
0.00010848882
Overall Rank
1,699 | 88.20%
DOI
10.14778/3461535.3461552

Incoming Non-self Citations Over Time

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Incoming Citations (Sorted by Pagerank)

Showing 50 of 60 citing papers.

Rank Citing Paper Year Venue Pagerank
1,638 Cardinality Estimation in DBMS: A Comprehensive Benchmark Evaluation 2022 VLDB 0.00011050093
2,090 Balsa: Learning a Query Optimizer Without Expert Demonstrations 2022 SIGMOD 9.5668285e-05
2,769 FLAT: Fast, Lightweight and Accurate Method for Cardinality Estimation 2021 VLDB 8.1512848e-05
2,781 Flow-Loss: Learning Cardinality Estimates That Matter 2021 VLDB 8.1282042e-05
3,269 Learned Cardinality Estimation: An In-depth Study 2022 SIGMOD 7.3026051e-05
3,345 Lero: A Learning-to-Rank Query Optimizer 2023 VLDB 7.1908499e-05
3,455 Learned Cardinality Estimation: A Design Space Exploration and A Comparative Evaluation 2022 VLDB 7.0760196e-05
3,492 Fauce: Fast and Accurate Deep Ensembles with Uncertainty for Cardinality Estimation 2021 VLDB 7.0435484e-05
4,413 Robust Query Driven Cardinality Estimation under Changing Workloads 2023 VLDB 6.1989918e-05
4,431 Lightweight and Accurate Cardinality Estimation by Neural Network Gaussian Process 2022 SIGMOD 6.1870601e-05
4,543 FACE: A Normalizing Flow based Cardinality Estimator 2022 VLDB 6.0953507e-05
5,405 ALECE: An Attention-based Learned Cardinality Estimator for SPJ Queries on Dynamic Workloads 2024 VLDB 5.5243727e-05
5,412 Kepler: Robust Learning for Faster Parametric Query Optimization 2023 SIGMOD 5.5200608e-05
5,654 AutoSteer: Learned Query Optimization for Any SQL Database 2023 VLDB 5.3882121e-05
5,941 Eraser: Eliminating Performance Regression on Learned Query Optimizer 2024 VLDB 5.2594013e-05
5,978 SafeBound: A Practical System for Generating Cardinality Bounds 2023 SIGMOD 5.2424396e-05
6,328 A Comparative Study and Component Analysis of Query Plan Representation Techniques in ML4DB Studies 2024 VLDB 5.1034426e-05
6,382 Sample-Efficient Cardinality Estimation Using Geometric Deep Learning 2024 VLDB 5.0835686e-05
6,687 How Good are Learned Cost Models, Really? Insights from Query Optimization Tasks 2025 SIGMOD 4.957987e-05
6,753 Breaking It Down: An In-depth Study of Index Advisors 2024 VLDB 4.9345582e-05
6,806 LMSFC: A Novel Multidimensional Index based on Learned Monotonic Space Filling Curves 2023 VLDB 4.917024e-05
6,860 Detect, Distill and Update: Learned DB Systems Facing Out of Distribution Data 2023 SIGMOD 4.9008421e-05
6,883 PilotScope: Steering Databases with Machine Learning Drivers 2024 VLDB 4.8918682e-05
7,118 ASM: Harmonizing Autoregressive Model, Sampling, and Multi-dimensional Statistics Merging for Cardinality Estimation 2024 SIGMOD 4.8204951e-05
7,220 Speeding Up End-to-end Query Execution via Learning-based Progressive Cardinality Estimation 2023 SIGMOD 4.7926382e-05
7,332 Refactoring Index Tuning Process with Benefit Estimation 2024 VLDB 4.7553758e-05
7,442 Selectivity Functions of Range Queries are Learnable* 2022 SIGMOD 4.7248554e-05
7,611 Learning to be a Statistician: Learned Estimator for Number of Distinct Values 2022 VLDB 4.6920008e-05
7,652 Machine Learning for Cloud Data Systems: the Progress so far and the Path Forward 2021 VLDB 4.6831938e-05
7,854 dbET: Execution Time Distribution-based Plan Selection 2023 SIGMOD 4.6306186e-05
8,011 CAMAL: Optimizing LSM-trees via Active Learning 2024 SIGMOD 4.6022693e-05
8,219 PerfGuard: Deploying ML-for-Systems without Performance Regressions, Almost! 2021 VLDB 4.551524e-05
8,440 PARQO: Penalty-Aware Robust Plan Selection in Query Optimization 2024 VLDB 4.505741e-05
8,636 WISK: A Workload-aware Learned Index for Spatial Keyword Queries 2023 SIGMOD 4.4758336e-05
8,648 HAP: An Efficient Hamming Space Index Based on Augmented Pigeonhole Principle 2022 SIGMOD 4.4718808e-05
8,854 Optimizing the cloud? Don't train models. Build oracles! 2024 CIDR 4.4306537e-05
8,952 One Seed, Two Birds: A Unified Learned Structure for Exact and Approximate Counting 2024 SIGMOD 4.4195459e-05
9,215 PACE: Poisoning Attacks on Learned Cardinality Estimation 2024 SIGMOD 4.3679174e-05
9,621 ShadowAQP: Efficient Approximate Group-by and Join Query via Attribute-oriented Sample Size Allocation and Data Generation 2023 VLDB 4.3125802e-05
9,662 Efficient Query Re-optimization with Judicious Subquery Selections 2023 SIGMOD 4.3056334e-05
9,746 Still Asking: How Good Are Query Optimizers, Really? 2025 VLDB 4.2856385e-05
9,841 Machine Unlearning in Learned Databases: An Experimental Analysis 2024 SIGMOD 4.2685233e-05
9,845 Path-centric Cardinality Estimation for Subgraph Matching 2025 VLDB 4.2680295e-05
9,876 Color: A Framework for Applying Graph Coloring to Subgraph Cardinality Estimation 2025 VLDB 4.2615675e-05
9,877 PRICE: A Pretrained Model for Cross-Database Cardinality Estimation 2025 VLDB 4.2615675e-05
9,959 An Elephant Under The Microscope: Analyzing The Interaction Of Optimizer Components In PostgreSQL 2025 SIGMOD 4.2254157e-05
10,014 BEE: Towards Redundancy Reduction via Block-Separator Decomposition for Subgraph Matching 2026 SIGMOD 4.1905499e-05
10,038 Understanding Robustness Issues of Updatable Learned Indexes: [Experiments & Analysis] 2026 SIGMOD 4.1905499e-05
10,125 Understanding and Detecting Query Performance Regression in Practical Index Tuning: [Experiments & Analysis] 2026 SIGMOD 4.1905499e-05
10,149 CorrBound: Cardinality Estimation Accounting for Inter- and Intra-relation Correlations 2026 SIGMOD 4.1905499e-05
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Outgoing Citations (Sorted by Pagerank)

Showing 2 of 52 cited papers.

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

Rank Cited Paper Year Venue Pagerank
4,566 Adaptive Statistics in Oracle 12c 2017 VLDB 6.073045e-05
5,799 Learned Approximate Query Processing: Make it Light, Accurate and Fast 2021 CIDR 5.3219666e-05
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