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arXiv · 2604.18964

DW-Bench: Benchmarking LLMs on Data Warehouse Graph Topology Reasoning

Ahmed G. A. H Ahmed·C. Okan Sakar
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Abstract

This paper introduces DW-Bench, a new benchmark that evaluates large language models (LLMs) on graph-topology reasoning over data warehouse schemas, explicitly integrating both foreign-key (FK) and data-lineage edges. The benchmark comprises 1,046 automatically generated, verifiably correct questions across five schemas. Experiments show that tool-augmented methods substantially outperform static approaches but plateau on hard compositional subtypes.

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BibTeXRIS

Ahmed G. A. H Ahmed, C. Okan Sakar. 2026-04-21. DW-Bench: Benchmarking LLMs on Data Warehouse Graph Topology Reasoning. https://arxiv.org/abs/2604.18964

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