CREATE TABLE postseason (year VARCHAR, team_id_winner VARCHAR)
CREATE TABLE team (team_id_br VARCHAR, name VARCHAR)

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
SELECT COUNT(*), "T1"."year" FROM "postseason" AS "T1" JOIN "team" AS "T2" ON "T1"."team_id_winner" = "T2"."team_id_br" AND "T2"."name" = 'Boston Red Stockings' GROUP BY "T1"."year"