CREATE TABLE table_35256 ("Rank" FLOAT, "Airport" TEXT, "Location" TEXT, "Code  ( IATA ) " TEXT, "Total Cargo  ( Metric Tonnes ) " TEXT, "2003 Rank" TEXT, "% Change" TEXT)

What is the IATA code of the airport that has a Total Cargo of 1,838,894 Metric Tonnes?
SELECT "Code (IATA)" FROM table_35256 WHERE "Total Cargo (Metric Tonnes)" = '1,838,894'
SELECT "Code (IATA)" FROM "table_35256" WHERE "Total Cargo (Metric Tonnes)" = '1,838,894'