what's the position of pick # 79
CREATE TABLE "2009_pittsburgh_steelers_draft_selection" (
  "round" real,
  "pick_num" real,
  "player" text,
  "position" text,
  "height" text,
  "weight" text,
  "college" text,
  "status" text
);
SELECT "position" FROM "2009_pittsburgh_steelers_draft_selection" WHERE "pick_num"=79;