What's the highest rank of a PVG/ZSPD Code (IATA/ICAO) airport with a total cargo less than 2,543,394 metric tonnes?
CREATE TABLE "2009_final_statistics" (
  "rank" real,
  "airport" text,
  "code_iata_icao" text,
  "total_cargo_metric_tonnes" real,
  "pct_change" text
);
SELECT MAX("rank") FROM "2009_final_statistics" WHERE "code_iata_icao"='pvg/zspd' AND "total_cargo_metric_tonnes"<'2,543,394';