What is the record for the away leg in round 1 and aggregate 2-0?
CREATE TABLE "european_record" (
  "season" text,
  "round" real,
  "opponents" text,
  "home_leg" text,
  "away_leg" text,
  "aggregate" text
);
SELECT "away_leg" FROM "european_record" WHERE "round"=1 AND "aggregate"='2-0';