Boston Red Stockings แพ้กี่ครั้งในช่วงหลังฤดูกาลปี 2009? ไม่จำเป็นต้องใช้ตารางทั้งหมด
How many times did Boston Red Stockings lose in 2009 postseason?It is not neccessary to use all the tables.
 pitching:  player_id [ text]  year [ number]  stint [ number]  team_id [ text]  league_id [ text]  w [ number]  l [ number]  g [ number]  gs [ number]  cg [ number]  sho [ number]  sv [ number]  ipouts [ number]  h [ number]  er [ number]  hr [ number]  bb [ number]  so [ number]  baopp [ number]  era [ number]  ibb [ number]  wp [ number]  hbp [ number]  bk [ number]  bfp [ number]  gf [ number]  r [ number]  sh [ number]  sf [ number]  g_idp [ number] 
SELECT COUNT(*) FROM postseason AS T1 JOIN team AS T2 ON T1.team_id_loser = T2.team_id_br WHERE T2.name = 'Boston Red Stockings' AND T1.year = 2009