anofox_tabular

A DuckDB extension for data quality, validation and anomaly detection in SQL - 18 data quality checks (volume, nulls, freshness, schema drift, regex and value-set compliance, duplicates, referential integrity, time-aware baselines) with a table-driven check-suite runner, column profiling and correlations including nested types, hash- and join-based table diffing, anomaly detection with Isolation Forest (categorical, Extended IF, SCiForest), DBSCAN and explainable OutlierTree, PII detection and masking (17 types including IBAN, credit cards, API keys and NER-based names, organizations and locations), email validation with DNS/SMTP checks, international address parsing (libpostal), phone number validation (libphonenumber), EU VAT validation (28 countries), and currency-aware money arithmetic.

Extensions★ 22 GitHub stars

Last commit pushed 2026-10-25.