```json { "table_name": "all_ai_models", "primary_key": "Model", "candidates": [ { "rank": 0, "partition_key": "Model", "partition_key_label": "primary_identifier", "partition_key_reasoning": "Model is the unique identifier for this dimension table. RPUV=1.00, Uniqueness=0.999, 3569 unique values out of 3574 rows. This is the natural primary key for a catalog of AI models.", "clustering_key": null, "clustering_key_label": null, "clustering_key_reasoning": "Dimension tables typically do not require clustering keys. Each row represents a distinct AI model entity with no inherent ordering requirement.", "world_line": null, "session_column": null, "confidence": "HIGH", "notes": "This is a dimension table cataloging AI models with their attributes. Model is the clear primary identifier. The table contains descriptive attributes (Organization, Domain, Task, Parameters, etc.) and metadata (_ingestion_timestamp, _batch_id, etc.). No temporal or spatial clustering is needed for a reference dimension table." } ] } ```