#30959: (PostgreSQL-backed) QuerySet.iterator() returns no result although
QuerySet.count() is a positive number
-------------------------------------+-------------------------------------
               Reporter:             |          Owner:  nobody
  TheVinhLuong102                    |
                   Type:             |         Status:  new
  Uncategorized                      |
              Component:             |        Version:  2.2
  Uncategorized                      |
               Severity:  Release    |       Keywords:  PostgreSQL,
  blocker                            |  iterator
           Triage Stage:             |      Has patch:  0
  Unreviewed                         |
    Needs documentation:  0          |    Needs tests:  0
Patch needs improvement:  0          |  Easy pickings:  0
                  UI/UX:  0          |
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 I'm using Django 2.2.6 on Python 3.7. My database is PostgreSQL engine
 version 11.5, hosted on Amazon RDS.

 I'm encountering a situation in which a QuerySet qs I construct has a
 positive number of records, as confirmed by qs.count() being over 1
 million. However, when I try to iterate through those records using
 qs.iterator(), there're no iterations being performed.

 I try reconstructing the queryset and test: test_iterator =
 qs.interator(); next(test_iterator) -- and I confirm that this returns the
 StopIteration error, which means the iterator is indeed empty.

-- 
Ticket URL: <https://code.djangoproject.com/ticket/30959>
Django <https://code.djangoproject.com/>
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