Show me the league id of player id bedrost01 ?
SELECT distinct T1.league_id FROM salary AS T1 JOIN team AS T2 ON T1.team_id   =   T2.team_id_br WHERE T1.player_id  =  "bedrost01"
league id of player id refers to joining salary and team tables where player_id = 'bedrost01'; distinct league_id refers to SELECT DISTINCT;