/Python/Django/Sum values in django models

Sum values in django models

sum_a = sum([item.column for item in queryset]) # Definitely takes more memory.
sum_b = queryset.aggregate(Sum('column')).get('column__sum') # Takes about 20% more time.

Source: stackoverflow.com

Similar codes

0 vote193 views3 answers
Django custom authentication
Python Django
2 votes232 views1 answer
Urlpatterns += static(r'^static/(?P<path>.*)$', 'django.views.static.serve', {'document_root': settings.STATIC_ROOT})
Python Django
1 vote190 views1 answer
Select realted for foreign key table in django
Python Django
1 vote197 views1 answer
How do i check if a django queryset is empty
Python Django
0 vote176 views1 answer
Import "reportlab" could not be resolved django
Python Django
0 vote218 views1 answer
Django.db.backends.mysql install
Python Django
0 vote176 views1 answer
Django.db.utils.IntegrityError: column contains null values
Python Django
1 vote179 views1 answer
Django round 2 decimal
Python Django
0 vote182 views1 answer
How to create superuser in django heroku
Python Django
0 vote174 views1 answer
Sending email in django
Python Django