Zero-Shot Cost Models for Out-of-the-box Learned Cost Prediction
Summary: Zero-shot cost models deliver out-of-the-box learned cost estimation that generalizes to unseen databases without training queries. A novel architecture and workload encoding enable transfer from pre-trained models, outperforming workload-driven baselines and supporting few-shot refinement on new databases. (summarized by gpt-5-nano on Feb 09 2026)
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