CREATE TABLE table_28533 ("Rd." FLOAT, "Grand Prix" TEXT, "Pole position" TEXT, "Fastest lap" TEXT, "Winning driver" TEXT, "Winning constructor" TEXT, "Report" TEXT)

Who had the pole position in the Canadian Grand Prix?
SELECT "Pole position" FROM table_28533 WHERE "Grand Prix" = 'Canadian Grand Prix'
SELECT "Pole position" FROM "table_28533" WHERE "Grand Prix" = 'Canadian Grand Prix'