# Changes
- Introduces `subqry` class to use in where clause when there is a non-column condition. eg.
> .where(subqry(no_of_roles) == 0)
- Convert SQL queries to frappe.qb
# Testing
Functions with query refactors
- frappe.boot.get_user_pages_or_reports() -> Same output of `get_bootinfo()` as develop
- frappe.boot.get_unseen_notes() -> Forms the same query as develop
```sql
SELECT `name`,`title`,`content`,`notify_on_every_login`
FROM `tabNote` WHERE `notify_on_every_login`=1
AND `expire_notification_on`>'2022-03-30 01:10:53.393874'
AND (SELECT `nsb`.`user` FROM `tabNote Seen By` `nsb` WHERE `nsb`.`parent`=`tabNote`.`name`) NOT IN ('Administrator')
```
- frappe.installer._delete_doctypes() -> installed and uninsalled a dummy app to drop tables
### Not tested
- frappe.make_property_setter()
- frappe.realtime.get_pending_tasks_for_doc() [whitelist method]
- frappe.sessions.Session.start()
- frappe.twofactor.cache_2fa_data()
The license.txt file has been replaced with LICENSE for quite a while
now. INAL but it didn't seem accurate to say "hey, checkout license.txt
although there's no such file". Apart from this, there were
inconsistencies in the headers altogether...this change brings
consistency.
