CREATE TABLE table_64303 ("Year" FLOAT, "Chinese Title" CLOB, "English" CLOB, "Role" CLOB, "Character" CLOB)

What year was the main role a character named Guan Yu ( )?
SELECT MIN("Year") FROM table_64303 WHERE "Role" = 'main' AND "Character" = 'guan yu (關羽)'
SELECT MIN("Year") FROM "table_64303" WHERE "Character" = 'guan yu (關羽)' AND "Role" = 'main'