CREATE TABLE table_204_789 (id DECIMAL, "plant name" TEXT, "location" TEXT, "country" TEXT, "startup date" DECIMAL, "capacity  ( mmtpa ) " TEXT, "corporation" TEXT)

qatargas ii started up the same year as what indonesian plant ?
SELECT "plant name" FROM table_204_789 WHERE "startup date" = (SELECT "startup date" FROM table_204_789 WHERE "plant name" = 'qatargas ii') AND "country" = 'indonesia'
SELECT "plant name" FROM "table_204_789" WHERE "country" = 'indonesia' AND "startup date" = (SELECT "startup date" FROM "table_204_789" WHERE "plant name" = 'qatargas ii')