text: SELECT
      t2.department
      , sum(t1.number_of_orders) as number_of_orders
  FROM 
      {{ ref('stg_top_selling_products') }} as t1
  LEFT JOIN
      {{ source('instacart_raw_data','departments') }} as t2
  ON 
      t1.department_id = t2.department_id
  GROUP BY
      t2.department
  ORDER BY
      number_of_orders DESC
  LIMIT 10