What was the surface later than 1979, for the Melbourne Indoor, Australia, and the score was 2–6, 6–2, 6–2?
CREATE TABLE "singles_55_25_30" (
  "outcome" text,
  "date" real,
  "championship" text,
  "surface" text,
  "opponent" text,
  "score" text
);
SELECT "surface" FROM "singles_55_25_30" WHERE "date">1979 AND "championship"='melbourne indoor, australia' AND "score"='2–6, 6–2, 6–2';