Uppercase locale string

Is it possible to generate globalize queries with an uppercase locale?
For instance should be:

```
SELECT * FROM `event_translations` WHERE (`event_translations`.`locale` IN ('IT')) AND (`event_translations`.event_id = 1406)
```

intead of:

```
SELECT * FROM `event_translations` WHERE (`event_translations`.`locale` IN ('it')) AND (`event_translations`.event_id = 1406)
```

Thanks in advance
