CREATE TABLE table_204_743 (id DECIMAL, "pos" TEXT, "no" DECIMAL, "driver" TEXT, "constructor" TEXT, "laps" DECIMAL, "time/retired" TEXT, "grid" DECIMAL, "points" DECIMAL)

heikki kovalainen and lewis hamilton both had which constructor ?
SELECT "constructor" FROM table_204_743 WHERE "driver" = 'heikki kovalainen'
SELECT "constructor" FROM "table_204_743" WHERE "driver" = 'heikki kovalainen'