Select() 方法，里面传递的表字段竟然有区分大小写，Why?

[jiemoon]

table : userinfo(Uid, Username)

err = orm.Where("uid > ?", 4).Select("uid,username").FindAll(&allusers)
fmt.Println(allusers) // [{0 } {0 }]

err = orm.Where("uid > ?", 4).Select("Uid,Username").FindAll(&allusers)
fmt.Println(allusers) // [{5 jiemoon} {6 Tom}]