```json { "table_name": "sample_queries", "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 primary identifier for each sample query record. While RPUV=1 typically indicates one file per row, for dimension tables the primary_identifier serves as the natural partition key.", "clustering_key": null, "clustering_key_label": null, "clustering_key_reasoning": "Dimension tables do not require internal sorting. No clustering key needed.", "world_line": null, "session_column": null, "confidence": "HIGH", "notes": "This is a dimension table cataloging sample queries. The id column is the unique identifier with perfect uniqueness and monotonicity. The table contains metadata about queries (text, description, engine, model, latency) across different datasets and batches. created_at is present as an event_time but does not drive partitioning in a dimension table context." } ] } ```