{
    "action": "final",
    "content": "Across the 150 rows in `raw.iris`, the categorical (text) columns have very few distinct values:\n\n- **species**: 3 distinct values (the three iris species: setosa, versicolor, virginica).\n- **_batch_id**: 1 distinct value, so every row was loaded in the same batch.\n- **_source_file**: 1 distinct value, so every row came from the same file.\n- **_source_system**: 1 distinct value, so every row came from the same source system.\n\n`species` is the only categorical column that carries analytical information, and it is the classifier for the dataset. The three `_`-prefixed columns are ingestion metadata. They are constant, so they cannot separate or describe specimens. The measurement columns (`sepal_length`, `sepal_width`, `petal_length`, `petal_width`) are numeric and are not counted here.\n\nThese counts come from the single COUNT(DISTINCT ...) query over `raw.iris` that I ran this turn."
}