CREATE TABLE table_name_17 (date VARCHAR, circuit VARCHAR, winning_constructor VARCHAR)

In the circuit of Madonie, what was the date that had the winning constructor Bugatti?
SELECT date FROM table_name_17 WHERE circuit = "madonie" AND winning_constructor = "bugatti"
SELECT "date" FROM "table_name_17" WHERE "bugatti" = "winning_constructor" AND "circuit" = "madonie"