CREATE TABLE table_203_281 (id DECIMAL, "season" DECIMAL, "pitcher" TEXT, "decision" TEXT, "final\ score" TEXT, "opponent" TEXT, "location" TEXT)

what was the last season when mike scott was the opening day starter for the astros ?
SELECT MAX("season") FROM table_203_281 WHERE "pitcher" = 'mike scott'
SELECT MAX("season") FROM "table_203_281" WHERE "pitcher" = 'mike scott'