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arXiv

FLINT combines a lookup agent, template retrieval, and foreign-key-chain pruning to lift Text-to-SQL on production financial schemas from below 50% to outperforming multiple baselines with the same LLM

The work presents FLINT, a domain-specialized Text-to-SQL system for production financial databases that resolves natural-language concepts into question-specific reference table constraints via a lookup agent, retrieves structurally similar query templates from a compact expert-authored bank using embedding-based retrieval, and prunes a large table schema by traversing foreign-key chains; evaluated on two datasets totaling 359 questions over production financial schemas, it outperforms various state-of-the-art baselines using the same LLM and is deployed in production as part of a financial data retrieval service.