```json { "table_name": "relationship_quality", "primary_key": "id", "candidates": [ { "rank": 0, "partition_key": "id", "partition_key_label": "primary_identifier", "partition_key_reasoning": "RPUV = 1.00 (perfectly unique), uniqueness = 1.000, monotonicity = 1.000. This is the natural primary key for a dimension table tracking relationship quality metrics between table pairs. Each row represents a unique relationship assessment.", "clustering_key": null, "clustering_key_label": null, "clustering_key_reasoning": "Dimension tables typically do not require internal sorting. No clustering key needed.", "world_line": null, "session_column": null, "confidence": "HIGH", "notes": "This is a metadata dimension table cataloging foreign key relationship quality metrics (confidence, coverage, cardinality) between tables in a data catalog. The id column is the unique identifier for each relationship assessment. Alternative partitioning by jobs_id (RPUV=9.88) could group relationships by analysis job, but the dimension classification calls for primary_identifier partitioning." } ] } ```