CREATE TABLE postseason (wins NUMBER, team_id_winner VARCHAR2)
CREATE TABLE team (team_id_br VARCHAR2, name VARCHAR2)

List the maximum scores of the team Boston Red Stockings when the team won in postseason?
SELECT MAX(T1.wins) FROM postseason AS T1 JOIN team AS T2 ON T1.team_id_winner = T2.team_id_br WHERE T2.name = 'Boston Red Stockings'
SELECT MAX("T1"."wins") FROM "postseason" "T1" JOIN "team" "T2" ON "T1"."team_id_winner" = "T2"."team_id_br" AND "T2"."name" = 'Boston Red Stockings'