What is the fewest points for positions with under 12 losses, goals against under 50, goal difference over 11, and under 30 played?
CREATE TABLE "group_i" (
  "position" real,
  "played" real,
  "points" real,
  "wins" real,
  "draws" real,
  "losses" real,
  "goals_for" real,
  "goals_against" real,
  "goal_difference" real
);
SELECT MIN("points") FROM "group_i" WHERE "losses"<12 AND "goals_against"<50 AND "goal_difference">11 AND "played"<30;