What is the average number of goals of park sung-ho at the k-league competition, which has the pohang steelers team and less than 46 total Gs?
CREATE TABLE "members" (
  "name" text,
  "date" text,
  "goals" real,
  "assists" real,
  "team" text,
  "venue" text,
  "opponent" text,
  "competition" text,
  "total_gs" real,
  "total_as" real
);
SELECT AVG("goals") FROM "members" WHERE "competition"='k-league' AND "team"='pohang steelers' AND "name"='park sung-ho' AND "total_gs"<46;