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)
Incoming Non-self Citations Over Time
Authors
- 1. Xiaoying Wang (Simon Fraser University)
- 2. Changbo Qu (Simon Fraser University)
- 3. Weiyuan Wu (Simon Fraser University)
- 4. Jiannan Wang (Simon Fraser University)
- 5. Qingqing Zhou (Tencent)
BibTeX Citation
@article{wang_vldb21,
title = {{Are We Ready For Learned Cardinality Estimation?}},
author = {Wang, Xiaoying and Qu, Changbo and Wu, Weiyuan and Wang, Jiannan and Zhou, Qingqing},
journal = {PVLDB},
series = {{VLDB} '21},
volume = {14},
number = {9},
pages = {1640--1654},
doi = {10.14778/3461535.3461552},
url = {https://doi.org/10.14778/3461535.3461552},
year = {2021}
}Incoming Citations (Sorted by Pagerank)
Showing 10 of 60 citing papers.
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 |
|---|---|---|---|---|
| 4,277 | Adaptive Statistics in Oracle 12c | 2017 | VLDB | 6.7873816e-05 |
| 4,789 | Learned Approximate Query Processing: Make it Light, Accurate and Fast | 2021 | CIDR | 6.5072039e-05 |
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| 2 | 465 | An End-to-End Learning-based Cost Estimator | 2020 | VLDB |
| 3 | 3,338 | Robust Query Driven Cardinality Estimation under Changing Workloads | 2023 | VLDB |
| 4 | 5,712 | Sample-Efficient Cardinality Estimation Using Geometric Deep Learning | 2024 | VLDB |
| 5 | 566 | Towards a Robust Query Optimizer: A Principled and Practical Approach | 2005 | SIGMOD |
| 6 | 1,122 | Cardinality Estimation in DBMS: A Comprehensive Benchmark Evaluation | 2022 | VLDB |
| 7 | 1,468 | Towards a Learning Optimizer for Shared Clouds | 2019 | VLDB |
| 8 | 6,543 | Speeding Up End-to-end Query Execution via Learning-based Progressive Cardinality Estimation | 2023 | SIGMOD |
| 9 | 2,543 | Learned Cardinality Estimation: An In-depth Study | 2022 | SIGMOD |
| 10 | 2,723 | Learned Cardinality Estimation: A Design Space Exploration and A Comparative Evaluation | 2022 | VLDB |