```json { "table_name": "brewers", "primary_key": "brewer_id", "candidates": [ { "rank": 0, "partition_key": "brewer_id", "partition_key_label": "primary_identifier", "partition_key_reasoning": "brewer_id is the unique identifier for this dimension table with RPUV=1.00, uniqueness=1.000, and perfect distribution (Top 3 Coverage 0.01%). It is the natural primary key for brewery entities.", "clustering_key": null, "clustering_key_label": null, "clustering_key_reasoning": "Dimension tables typically do not require clustering keys as they are reference tables without internal ordering requirements.", "world_line": null, "session_column": null, "confidence": "HIGH", "notes": "This is a classic dimension table containing brewery master data. The brewer_id serves as the primary identifier with perfect uniqueness. The table contains descriptive attributes (name, address, city, website, etc.) and metadata fields (_ingestion_timestamp, _batch_id). No clustering is needed as dimension lookups are typically by primary key." } ] } ```