Django 4.1: implementing Conditional Querying Using Q Objects and F Expressions
I've encountered a strange issue with Quick question that's been bugging me - I'm working on a Django 4.1 application and I've run into a question when trying to filter a queryset based on conditions that involve both `Q` objects and `F` expressions. My goal is to retrieve all users where their `last_login` is greater than their `date_joined`, but I'm struggling with the syntax and getting unexpected results. Here’s the code I’m using: ```python from django.db.models import Q, F users = User.objects.filter(Q(last_login__gt=F('date_joined'))) ``` When I run this code, it seems to return users who have a `last_login` that is actually less than their `date_joined`. I’ve also tried adding a `.distinct()` call at the end, but it doesn't seem to help. I’ve verified that there are users in the database who meet this condition. I also checked my database's timezone settings to ensure there are no discrepancies between the timestamps. Additionally, I’ve attempted using a simpler filter without `Q` or `F` just to debug: ```python users = User.objects.filter(last_login__gt='2022-01-01') ``` This returns the expected results, which adds to my confusion regarding the `Q` and `F` usage. Is there something I'm missing or a common pitfall with using these expressions in Django? Any guidance would be appreciated! My development environment is Windows. How would you solve this? I'm open to any suggestions. Has anyone else encountered this?