Finally! A Text-to-SQL solution that actually works (open-source).When text-to-SQL fails, the real issue isn't the LLM or the prompt but schema retrieval.Consider a query like "Which publishers received royalty payments above $5,000?"To handle this, vector search can pull "publisher" and "royalty_ledger" based on semantic similarityBut it can completely miss "vendor_agreement", the bridge table that connects them. The LLM writes valid SQL, but the engine still returns zero rows.This is a fundame