medallion_architecture

Use when designing or implementing Medallion (Bronze/Silver/Gold) data lakehouse architecture — layer definitions, DDL for each layer, DML load and update patterns, incremental pipeline design, deduplication strategies (row_number/merge/hash/CDC/watermark), schema evolution, data quality gates, partitioning per layer, late-arriving data, orchestration patterns, and best practices for Iceberg-based lakehouses.