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Neo: A Learned Query Optimizer

Summary: Neo (Neural Optimizer) uses deep neural networks to generate query execution plans, offering a learning-based alternative to hand-tuned optimizers. Bootstrapped from traditional optimizers, it learns from live queries, adapts to data patterns, is robust to estimation errors, and can match or surpass state-of-the-art engines. (summarized by gpt-5-nano on Feb 09 2026)

Paper ID
12047
Venue
VLDB
Year
2019
Pagerank
0.00028726181
Overall Rank
154 | 98.95%
DOI
10.14778/3342263.3342644

Incoming Non-self Citations Over Time

Authors

BibTeX Citation

@article{marcus_vldb19,
        title = {{Neo: A Learned Query Optimizer}},
        author = {Marcus, Ryan and Negi, Parimarjan and Mao, Hongzi and Zhang, Chi and Alizadeh, Mohammad and Kraska, Tim and Papaemmanouil, Olga and Tatbul, Nesime},
        journal = {PVLDB},
        series = {{VLDB} '19},
        volume = {12},
        number = {11},
        pages = {1705--1718},
        doi = {10.14778/3342263.3342644},
        url = {https://doi.org/10.14778/3342263.3342644},
        year = {2019}
}

Incoming Citations (Sorted by Pagerank)

Showing 50 of 174 citing papers.

Rank Citing Paper Year Venue Pagerank
7,910 Quantum-Inspired Digital Annealing for Join Ordering 2024 VLDB 5.5181056e-05
7,967 Thrifty Query Execution via Incrementability 2020 SIGMOD 5.5169373e-05
7,978 ADOPT: Adaptively Optimizing Attribute Orders for Worst-Case Optimal Join Algorithms via Reinforcement Learning 2023 VLDB 5.514996e-05
8,040 PerfGuard: Deploying ML-for-Systems without Performance Regressions, Almost! 2021 VLDB 5.5018396e-05
8,127 The Case for NLP-Enhanced Database Tuning: Towards Tuning Tools that “Read the Manual” 2021 VLDB 5.4826853e-05
8,163 Learned Offline Query Planning via Bayesian Optimization 2025 SIGMOD 5.4751517e-05
8,164 SlabCity: Whole-Query Optimization using Program Synthesis 2023 VLDB 5.4750309e-05
8,193 Towards Building Autonomous Data Services on Azure 2023 SIGMOD 5.4696038e-05
8,211 MONSOON: Multi-Step Optimization and Execution of Queries with Partially Obscured Predicates 2020 SIGMOD 5.4658735e-05
8,221 NeurDB: On the Design and Implementation of an AI-powered Autonomous Database 2025 CIDR 5.4640314e-05
8,234 The Case for Learned In-Memory Joins 2023 VLDB 5.460955e-05
8,323 SageDB: An Instance-Optimized Data Analytics System 2022 VLDB 5.4539294e-05
8,410 Robust and Budget-Constrained Encoding Configurations for In-Memory Database Systems 2022 VLDB 5.4309397e-05
8,448 Towards Query Optimizer as a Service (QOaaS) in a Unified LakeHouse Ecosystem: Can One QO Rule Them All? 2025 CIDR 5.4235725e-05
8,494 POLAR: Adaptive and Non-invasive Join Order Selection via Plans of Least Resistance 2024 VLDB 5.4142129e-05
8,572 T3: Accurate and Fast Performance Prediction for Relational Database Systems With Compiled Decision Trees 2025 SIGMOD 5.4102362e-05
8,783 Tiresias: Enabling Predictive Autonomous Storage and Indexing 2022 VLDB 5.3740362e-05
8,798 GEqO: ML-Accelerated Semantic Equivalence Detection 2023 SIGMOD 5.3698781e-05
8,854 Towards Foundation Database Models 2025 CIDR 5.357608e-05
8,984 Hit the Gym: Accelerating Query Execution to Efficiently Bootstrap Behavior Models for Self-Driving Database Management Systems 2024 VLDB 5.3395569e-05
9,008 Making Data Clouds Smarter at Keebo: Automated Warehouse Optimization using Data Learning 2023 SIGMOD 5.3335632e-05
9,123 BASE: Bridging the Gap between Cost and Latency for Query Optimization 2023 VLDB 5.3193264e-05
9,224 Phoebe: A Learning-based Checkpoint Optimizer 2021 VLDB 5.3035811e-05
9,240 Automatic SQL Error Mitigation in Oracle 2023 VLDB 5.3004142e-05
9,428 LIMAO: A Framework for Lifelong Modular Learned Query Optimization 2025 VLDB 5.2709145e-05
9,465 Are Joins over LSM-trees Ready? Take RocksDB as an Example 2025 VLDB 5.2634238e-05
9,587 Machine Unlearning in Learned Databases: An Experimental Analysis 2024 SIGMOD 5.2525104e-05
9,601 Low Rank Learning for Offline Query Optimization 2025 SIGMOD 5.2487799e-05
9,615 Wii: Dynamic Budget Reallocation In Index Tuning 2024 SIGMOD 5.2436464e-05
9,756 Efficient Query Re-optimization with Judicious Subquery Selections 2023 SIGMOD 5.2258278e-05
9,796 ROME: Robust Query Optimization via Parallel Multi-Plan Execution 2024 SIGMOD 5.21848e-05
9,881 The Image Calculator: 10x Faster Image-AI Inference by Replacing JPEG with Self-designing Storage Format 2024 SIGMOD 5.2040783e-05
9,920 Still Asking: How Good Are Query Optimizers, Really? 2025 VLDB 5.1955087e-05
9,971 Athena: An Effective Learning-based Framework for Query Optimizer Performance Improvement 2025 SIGMOD 5.1845938e-05
9,974 PLATON: Top-down R-tree Packing with Learned Partition Policy 2023 SIGMOD 5.1845938e-05
9,997 HyperBlocker: Accelerating Rule-based Blocking in Entity Resolution using GPUs 2025 VLDB 5.1814573e-05
10,016 Turbo-Charging SPJ Query Plans with Learned Physical Join Operator Selections 2022 VLDB 5.1764556e-05
10,041 DBMS Fitting: Why should we learn what we already know? 2020 CIDR 5.1709251e-05
10,066 Check Out the Big Brain on BRAD: Simplifying Cloud Data Processing with Learned Automated Data Meshes 2023 VLDB 5.1643809e-05
10,106 How to Optimize SQL Queries? A Comparison Between Split, Holistic, and Hybrid Approaches 2025 VLDB 5.1435736e-05
10,108 An Elephant Under The Microscope: Analyzing The Interaction Of Optimizer Components In PostgreSQL 2025 SIGMOD 5.1347137e-05
10,196 Are Learned DBMS Components Robust to Workload Drift?: [Experiments & Analysis] 2026 SIGMOD 5.093636e-05
10,272 NeurBench: A Benchmark Suite for Learned Database Components with Drift Modeling: [Experiments & Analysis] 2026 SIGMOD 5.093636e-05
10,277 On Self-Designing Learned Indexes 2026 SIGMOD 5.093636e-05
10,316 GenJoin: Conditional Generative Plan-to-Plan Query Optimizer that Learns from Subplan Hints 2026 SIGMOD 5.093636e-05
10,378 High Performance or Low Memory? An Updatable Learned Index Framework for Time-Space Tradeoff 2026 SIGMOD 5.093636e-05
10,401 SEFRQO: A Self-Evolving Fine-Tuned RAG-Based Query Optimizer 2026 SIGMOD 5.093636e-05
10,413 Understanding and Detecting Query Performance Regression in Practical Index Tuning: [Experiments & Analysis] 2026 SIGMOD 5.093636e-05
10,445 Divo: Learning a Stable and Effective Query Optimizer with a Diverse Workload 2026 SIGMOD 5.093636e-05
10,463 IDAP++: Advancing Divergence-Aware Pruning with Joint Filter and Layer Optimization 2026 SIGMOD 5.093636e-05
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Outgoing Citations (Sorted by Pagerank)

Showing 14 of 14 cited papers.

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