@Entity(tableName = "team_player_join",
        primaryKeys = { "teamId", "playerId" },
        foreignKeys = {
                ForeignKey(entity = Team.class,
                        parentColumns = "id",
                        childColumns = "teamId"),
                ForeignKey(entity = Player.class,
                        parentColumns = "id",
                        childColumns = "playerId")
                })
class TeamPlayerJoin(val teamId: Long, val playerId: Long)