#28383: NumPoints should return None for any non-LINESTRING geometry on MySQL as
documented
------------------------------------------------+------------------------
               Reporter:  Sergey Fedoseev       |          Owner:  nobody
                   Type:  Cleanup/optimization  |         Status:  new
              Component:  GIS                   |        Version:  master
               Severity:  Normal                |       Keywords:
           Triage Stage:  Unreviewed            |      Has patch:  0
    Needs documentation:  0                     |    Needs tests:  0
Patch needs improvement:  0                     |  Easy pickings:  0
                  UI/UX:  0                     |
------------------------------------------------+------------------------
 
[https://docs.djangoproject.com/en/dev/ref/contrib/gis/functions/#django.contrib.gis.db.models.functions.NumPoints
 Documetation] says
 > On MySQL, returns None for any non-LINESTRING geometry.

 , but instead of that `TypeError` is raised. IMO we should not check input
 type here because we can't do it reliably if the input is the output of
 another GIS function and because wrong input type doesn't lead to some DB
 level error.

-- 
Ticket URL: <https://code.djangoproject.com/ticket/28383>
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