#30244: Aggregate functions with filter have bug with state mutation in
get_source_expressions() method
               Reporter:  gtors      |          Owner:  nobody
                   Type:  Bug        |         Status:  new
              Component:  Database   |        Version:  2.1
  layer (models, ORM)                |
               Severity:  Normal     |       Keywords:
           Triage Stage:             |      Has patch:  0
  Unreviewed                         |
    Needs documentation:  0          |    Needs tests:  0
Patch needs improvement:  0          |  Easy pickings:  0
                  UI/UX:  0          |
 Django 2.1.7

 In [27]: s = Sum('x', filter=Q(x=1))

 In [28]: s.get_source_expressions()
 Out[28]: [F(x), <Q: (AND: ('x', 1))>]

 In [29]: s.get_source_expressions()
 Out[29]: [F(x), <Q: (AND: ('x', 1))>, <Q: (AND: ('x', 1))>]

 In [30]: s.get_source_expressions()
 Out[30]: [F(x), <Q: (AND: ('x', 1))>, <Q: (AND: ('x', 1))>, <Q: (AND:
 ('x', 1))>]

 Each call of `get_source_expressions` on instance of aggregate function
 causes list element duplication.

Ticket URL: <https://code.djangoproject.com/ticket/30244>
Django <https://code.djangoproject.com/>
The Web framework for perfectionists with deadlines.

You received this message because you are subscribed to the Google Groups 
"Django updates" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to django-updates+unsubscr...@googlegroups.com.
To post to this group, send email to django-updates@googlegroups.com.
To view this discussion on the web visit 
For more options, visit https://groups.google.com/d/optout.

Reply via email to