```json { "table_name": "beer_styles", "primary_key": "style_id", "candidates": [ { "rank": 0, "partition_key": "style_id", "partition_key_label": "primary_identifier", "partition_key_reasoning": "style_id is the unique identifier for beer styles with RPUV=1.00, uniqueness=1.000, and perfect monotonicity=1.000. As a dimension table with 157 rows, this is the natural partition key representing each distinct beer style entity.", "clustering_key": null, "clustering_key_label": null, "clustering_key_reasoning": "Dimension tables typically do not require clustering keys as they are reference data without internal ordering requirements. The table is small (157 rows) and accessed by style_id lookups.", "world_line": null, "session_column": null, "confidence": "HIGH", "notes": "This is a classic dimension table containing beer style reference data. The style_id is the clear primary identifier. The parent_style_id creates a hierarchical relationship between styles (e.g., substyles rolling up to parent styles), but does not change the partitioning strategy. The metadata columns (_ingestion_timestamp, _batch_id, _source_file, _source_system) are all constant across all rows and provide lineage information but no partitioning value." } ] } ```