[Sqlalchemy-tickets] Issue #3073: Don't allow to automatically query database when use load_only option (zzzeek/sqlalchemy)

[toan n. <iss...@bi...>]

New issue 3073: Don't allow to automatically query database when use load_only option
https://bitbucket.org/zzzeek/sqlalchemy/issue/3073/dont-allow-to-automatically-query-database

toan nguyen:

When I query object like that:


```
#!python

user = session.query(User).options(load_only('id', 'email')).first()
```

If I use user object but I don't remember I only loaded 'email', 'id' columns and used like that:


```
#!python
print user.name 

```
It'll automatically query database to set 'name' attribute. I want an option for me to don't allow it to do automatic. Because of special reason, I can't query like that

```
#!python
user = session.query(User.id, User.email).first()

```