CREATE TABLE "round_9" (
  "home_team" text,
  "home_team_score" text,
  "away_team" text,
  "away_team_score" text,
  "venue" text,
  "crowd" real,
  "date" text
);

Question: What is the highest crowd when carlton is the away team?
SQL: SELECT MAX("crowd") FROM "round_9" WHERE "away_team"='carlton';

Question: What is the highest crowd at mcg?
SQL: SELECT MAX("crowd") FROM "round_9" WHERE "venue"='mcg';