from dja.setup_django import go
go(__file__)

import processing

from django.db import connection

from google.models import Query

class Test:
    def foo(self):
        return Query.objects.all().count()

def do():
    from django.db import connection
    #connection.connection.close()
    connection.connection = None
    connection.cursor()
    print '1', Test().foo()


print '2', Test().foo()

p = processing.Process(target=do)
p.start()
p.join()

print '3', Test().foo()

"""
Получаем хуйню вида:

lorien@lorien /web/seozilla/web_site $ python dbtest.py 
2 4160
1 4160
3
Traceback (most recent call last):
  File "dbtest.py", line 28, in ?
    print '3', Test().foo()
  File "dbtest.py", line 12, in foo
    return Query.objects.all().count()
  File "/usr/lib/python2.4/site-packages/django/db/models/query.py", line 244, in count
    count = cursor.fetchone()[0]
psycopg2.ProgrammingError: no results to fetch
"""