What is the largest Goals For by a team that has more than 0 ties?
CREATE TABLE "final_standing" (
  "team" text,
  "games_played" real,
  "wins" real,
  "losses" real,
  "ties" real,
  "goals_for" real,
  "goals_against" real
);
SELECT MAX("goals_for") FROM "final_standing" WHERE "ties">0;