# 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()
