What is the RAtt when the comp is 48?
CREATE TABLE "post_season" (
  "year" text,
  "team" text,
  "comp" text,
  "long" text,
  "rate" text,
  "r_att" text,
  "r_yds" text,
  "r_avg" text,
  "lost" text
);
SELECT "r_att" FROM "post_season" WHERE "comp"='48';