open-source · since 2026-09-27
Card Transaction Lakehouse
Sahil Bhadane
Apache-2.0-style reference lakehouse with an integrated local text-to-SQL layer over DuckDB and Parquet, schema/metric retrieval, parser-based table allow-listing, forced row limits, a locked external-file sandbox and one-step SQL repair.
text-to-sqllakehouseduckdbairflowevaluation
desk notes
Verified public repository on 2026-09-27. Includes 12 golden questions and reports retrieval recall@4 improving from 91.7% to 100% after metric-to-table linking. Execution accuracy is explicitly not yet recorded. No detected repository license in GitHub metadata.