# Description
Forces lower case to all id_users in staging. Removes hardcoded lower case in intermediate. Adapts readme to contemplate the lowering of id users.
I propose to merge, run in prod and run tests in prod as a proper evaluation method.
BTW, I only find one id_user_host that was in capital letters, so that's why probably we didn't care that much about this. Still, I prefer have things clean from the start!
```
select *
from staging.stg_core__booking scb
left join intermediate.int_core__unified_user icuu
on lower(scb.id_user_host) = lower(icuu.id_user)
where scb.id_user_host <> icuu.id_user
```
# Checklist
- [ ] The edited models and dependants run properly with production data. **All models run in stg, did not check all the dependants**
- [ ] The edited models are sufficiently documented. **Have not checked**
- [ ] The edited models contain PK tests, and I've ran and passed them.
- [X] I have checked for DRY opportunities with other models and docs.
- [ ] I've picked the right materialization for the affected models.
# Other
- [ ] Check if a full-refresh is required after this PR is merged.
Related work items: #20776
