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.
Bu egzersiz
Introduction to Polars
kursunun bir parçasıdırUygulamalı interaktif egzersiz
Bu örnek kodu tamamlayarak bu egzersizi bitirin.
# Select the columns with a lazy query
ev_df = ____("electric_vehicles.csv").____
# Execute the lazy query
print(____)