Django Debug Toolbar

In the django debug toolbar, SQL section do not display any data ; simply put it says
“No SQL queries were recorded during this request.” , unless I write a print statement in my code.

like->
print(queryset)

OR in template like->
{{result}}

Is it a normal behavior? Or I am doing something wrong.

Do I have to actually write some sort of print statement in order for the SQL section(in debug toolbar) to work ?