ProgrammingError: column "company.owner_id" must appear in the GROUP BY clause or be used in the aggregate function

gistfile1.txt

Please ignore the horrible DB schema.  It's not mine.  It's an introspection of a horrible Windows ticket app.

I upgraded from Django 1.8.x to 1.9 and the following query that I use when gathering stats (Top ticket creators) broke:

>>> Company.objects.all().annotate(ticketcount=Count('srservice'))
Traceback (most recent call last):
  File "<console>", line 1, in <module>
  File "/home/aaron/.virtualenvs/intranet/lib/python2.7/site-packages/django/db/models/query.py", line 234, in __repr__
    data = list(self[:REPR_OUTPUT_SIZE + 1])
  File "/home/aaron/.virtualenvs/intranet/lib/python2.7/site-packages/django/db/models/query.py", line 258, in __iter__
    self._fetch_all()
  File "/home/aaron/.virtualenvs/intranet/lib/python2.7/site-packages/django/db/models/query.py", line 1074, in _fetch_all
    self._result_cache = list(self.iterator())
  File "/home/aaron/.virtualenvs/intranet/lib/python2.7/site-packages/django/db/models/query.py", line 52, in __iter__
    results = compiler.execute_sql()
  File "/home/aaron/.virtualenvs/intranet/lib/python2.7/site-packages/django/db/models/sql/compiler.py", line 848, in execute_sql
    cursor.execute(sql, params)
  File "/home/aaron/.virtualenvs/intranet/lib/python2.7/site-packages/django/db/backends/utils.py", line 79, in execute
    return super(CursorDebugWrapper, self).execute(sql, params)
  File "/home/aaron/.virtualenvs/intranet/lib/python2.7/site-packages/django/db/backends/utils.py", line 64, in execute
    return self.cursor.execute(sql, params)
  File "/home/aaron/.virtualenvs/intranet/lib/python2.7/site-packages/django/db/utils.py", line 95, in __exit__
    six.reraise(dj_exc_type, dj_exc_value, traceback)
  File "/home/aaron/.virtualenvs/intranet/lib/python2.7/site-packages/django/db/backends/utils.py", line 64, in execute
    return self.cursor.execute(sql, params)
ProgrammingError: column "company.owner_id" must appear in the GROUP BY clause or be used in an aggregate function
LINE 1: SELECT "company"."owner_id", "company"."company_recid", "com...
               ^
>>>

# models.py
class SrService(models.Model):                                                                                           
    owner_id = models.IntegerField(blank=True, null=True)                                                                
    sr_service_recid = models.IntegerField(primary_key=True)                                                             
    contract_recid = models.IntegerField(blank=True, null=True)     
    company_recid = models.ForeignKey('Company', db_column='company_recid')                                              
    contact_recid = models.ForeignKey('Contact', db_column='contact_recid', blank=True, null=True)                       
    summary = models.CharField(max_length=100, blank=True)
    
    ...snip...
    
    def __unicode__(self):                                                                                               
        return u"%s - %s" % (self.sr_service_recid, self.summary)                                                        
                                                                                                                         
    class Meta:                                                                                                          
        managed = False                                                                                                  
        db_table = 'sr_service'                                                                                          
        get_latest_by = 'sr_service_recid'                                                                               
        ordering = ['pk']                                                                                                


class Company(models.Model):                                                                                             
    owner_id = models.IntegerField(blank=True, null=True)                                                                
    company_recid = models.IntegerField(primary_key=True)                                                                
    company_id = models.CharField(max_length=50, blank=True)                                                             
    company_name = models.CharField(max_length=50, blank=True)                                                           

    ...snip...

    def __unicode__(self):                                                                                               
        return u'%(company_name)s' % self.__dict__                                                                       
                                                                                                                         
    class Meta:                                                                                                          
        managed = False                                                                                                  
        ordering = ['company_name',]                                                                                     
        db_table = 'company'