Which Points is the highest one that has a Nationality of aut, and a Name of thomas morgenstern?
CREATE TABLE "liberec" (
  "rank" real,
  "name" text,
  "nationality" text,
  "1st_m" real,
  "2nd_m" real,
  "points" real,
  "overall_wc_points_rank" text
);
SELECT MAX("points") FROM "liberec" WHERE "nationality"='aut' AND "name"='thomas morgenstern';