CREATE TABLE table_42254 ("Round" TEXT, "Date" TEXT, "Home team" TEXT, "Score" TEXT, "Away team" TEXT)

In the 6th round match with home team Bahia, who was the away team?
SELECT "Away team" FROM table_42254 WHERE "Round" = '6th' AND "Home team" = 'bahia'
SELECT "Away team" FROM "table_42254" WHERE "Home team" = 'bahia' AND "Round" = '6th'