A new evaluation framework generates equivalent schemas from an E/R model and shows that LLMs produce SQL queries with different answers across those schemas for fixed questions and data.
Evoschema: Towards text-to-SQL robustness against schema evolution.arXiv preprint arXiv:2603.10697, 2026
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Same Data, Different Schemas: Robustness of LLM-based Text-to-SQL
A new evaluation framework generates equivalent schemas from an E/R model and shows that LLMs produce SQL queries with different answers across those schemas for fixed questions and data.