{
    "action": "final",
    "content": "Based on the dataset's schema, the `raw.iris` table contains the following core columns:\n\n* **`species`** (`VARCHAR`): Acts as the classifier, indicating the specific species of the iris flower (e.g., setosa, versicolor, virginica).\n* **`sepal_length`** (`DOUBLE`): A numerical measure representing the length of the flower's sepal.\n* **`sepal_width`** (`DOUBLE`): A numerical measure representing the width of the flower's sepal.\n* **`petal_length`** (`DOUBLE`): A numerical measure representing the length of the flower's petal.\n* **`petal_width`** (`DOUBLE`): A numerical measure representing the width of the flower's petal.\n\nAdditionally, the table includes standard system metadata columns used for tracking data ingestion: `_ingestion_timestamp` (TIMESTAMP), `_batch_id` (VARCHAR), `_source_file` (VARCHAR), and `_source_system` (VARCHAR)."
}