what is the number of wins the team Boston Red Stockings got in the postseasons each year in history?
select count ( * ), t1.year from postseason as t1 join team as t2 on t1.team_id_winner = t2.team_id_br where t2.name = 'Boston red Stockings' group by t1.year
ok, list out the all team id winner
select team_id_winner from postseason
ok,list out the all team id loser
select team_id_loser from postseason