CREATE TABLE table_203_719 (id NUMBER, "year" NUMBER, "australian open" CLOB, "french open" CLOB, "wimbledon" CLOB, "us open" CLOB)

what is the first year of the australian open ?
SELECT MIN("year") FROM table_203_719 WHERE NOT "australian open" IS NULL
SELECT MIN("year") FROM "table_203_719" WHERE NOT "australian open" IS NULL