#34344: PostGIS Database Backend Overrides features_class, ops_class and
introspection_class
-------------------------------------+-------------------------------------
               Reporter:  davidjayb  |          Owner:  nobody
                   Type:             |         Status:  new
  Cleanup/optimization               |
              Component:  GIS        |        Version:  dev
               Severity:  Normal     |       Keywords:  geodjango postgis
           Triage Stage:             |  database backend
  Unreviewed                         |      Has patch:  1
    Needs documentation:  0          |    Needs tests:  0
Patch needs improvement:  0          |  Easy pickings:  0
                  UI/UX:  0          |
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 While working on adding PostGIS support to the django-multitenant library
 I had some issues with the features_class that was overridden in the
 DatabaseWrapper subclass. After some troubleshooting I was able to
 determine this is because the PostGIS backend explicitly sets the
 `features`, `ops`, and `introspection` properties to the file local
 classes:

 
https://github.com/django/django/blob/stable/4.2.x/django/contrib/gis/db/backends/postgis/base.py#L91

 I was able to work around this behaviour by overriding the constructor and
 setting the features property explicitly:

 https://github.com/citusdata/django-multitenant/pull/150/files#diff-
 0d077af5d4e86f31f478785458ea6a03768a15aea077f49b9a79ffca8b0fe4beR37

 This isn't very intuitive as other database backends will respect setting
 the `_class` properties to instantiate classes.

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Ticket URL: <https://code.djangoproject.com/ticket/34344>
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