CREATE TABLE table_46217 ("Date" CLOB, "Opponent" CLOB, "Location" CLOB, "Time" CLOB, "Result" CLOB)

Who did the Lightning play at the Mellon Arena?
SELECT "Opponent" FROM table_46217 WHERE "Location" = 'mellon arena'
SELECT "Opponent" FROM "table_46217" WHERE "Location" = 'mellon arena'