Who had the fastest lap when Al Unser won?
CREATE TABLE table_name_40 (fastest_lap VARCHAR, winning_driver VARCHAR)
SELECT fastest_lap FROM table_name_40 WHERE winning_driver = "al unser"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_40 (fastest_lap VARCHAR, winning_driver VARCHAR) Question: Who had the fastest lap when Al Unser won? [/INST] SELECT fastest_lap FROM table_name_40 WHERE winning_driver = "al unser" </s>