Creating a Lazy Query
You are asked to provide details on the range of electric vehicles for each model for a pre-sales opportunity. As you only need a subset of columns from the CSV you want to write this as a lazy query to take advantage of query optimization.
Deze oefening maakt deel uit van de cursus
Introduction to Polars
Praktische interactieve oefening
Probeer deze oefening eens door deze voorbeeldcode in te vullen.
# Select the columns with a lazy query
ev_df = ____("electric_vehicles.csv").____
# Execute the lazy query
print(____)