#29847: Window function test failures with MySQL 8
-------------------------------------+-------------------------------------
               Reporter:  Tom        |          Owner:  nobody
  Forbes                             |
                   Type:             |         Status:  new
  Uncategorized                      |
              Component:  Database   |        Version:  2.1
  layer (models, ORM)                |
               Severity:  Normal     |       Keywords:
           Triage Stage:             |      Has patch:  0
  Unreviewed                         |
    Needs documentation:  0          |    Needs tests:  0
Patch needs improvement:  0          |  Easy pickings:  0
                  UI/UX:  0          |
-------------------------------------+-------------------------------------
 With the mysql:8 Docker image I get the following failures on master:

 {{{
 FAIL: test_lag (expressions_window.tests.WindowFunctionTests)
 ----------------------------------------------------------------------
 Traceback (most recent call last):
   File "/usr/local/lib/python3.7/unittest/case.py", line 59, in
 testPartExecutor
     yield
   File "/usr/local/lib/python3.7/unittest/case.py", line 615, in run
     testMethod()
   File "/tests/django/tests/expressions_window/tests.py", line 211, in
 test_lag
     ], transform=lambda row: (row.name, row.salary, row.department,
 row.lag))
   File "/tests/django/django/test/testcases.py", line 975, in
 assertQuerysetEqual
     return self.assertEqual(list(items), values, msg=msg)
   File "/usr/local/lib/python3.7/unittest/case.py", line 839, in
 assertEqual
     assertion_func(first, second, msg=msg)
   File "/usr/local/lib/python3.7/unittest/case.py", line 1045, in
 assertListEqual
     self.assertSequenceEqual(list1, list2, msg, seq_type=list)
   File "/usr/local/lib/python3.7/unittest/case.py", line 1027, in
 assertSequenceEqual
     self.fail(msg)
   File "/usr/local/lib/python3.7/unittest/case.py", line 680, in fail
     raise self.failureException(msg)
 AssertionError: Lists differ: [('Jones', 45000, 'Accounting', 45000),
 ('Ad[400 chars]000)] != [('Williams', 37000, 'Accounting', None), ('[400
 chars]000)]
 }}}

 {{{
 ======================================================================
 FAIL: test_lead (expressions_window.tests.WindowFunctionTests)
 ----------------------------------------------------------------------
 Traceback (most recent call last):
   File "/usr/local/lib/python3.7/unittest/case.py", line 59, in
 testPartExecutor
     yield
   File "/usr/local/lib/python3.7/unittest/case.py", line 615, in run
     testMethod()
   File "/tests/django/tests/expressions_window/tests.py", line 400, in
 test_lead
     ], transform=lambda row: (row.name, row.salary, row.department,
 row.hire_date, row.lead))
   File "/tests/django/django/test/testcases.py", line 975, in
 assertQuerysetEqual
     return self.assertEqual(list(items), values, msg=msg)
   File "/usr/local/lib/python3.7/unittest/case.py", line 839, in
 assertEqual
     assertion_func(first, second, msg=msg)
   File "/usr/local/lib/python3.7/unittest/case.py", line 1045, in
 assertListEqual
     self.assertSequenceEqual(list1, list2, msg, seq_type=list)
   File "/usr/local/lib/python3.7/unittest/case.py", line 1027, in
 assertSequenceEqual
     self.fail(msg)
   File "/usr/local/lib/python3.7/unittest/case.py", line 680, in fail
     raise self.failureException(msg)
 AssertionError: Lists differ: [('Williams', 37000, 'Accounting',
 datetime.[726 chars]one)] != [('Jones', 45000, 'Accounting',
 datetime.dat[726 chars]one)]
 First differing element 0:
 }}}

-- 
Ticket URL: <https://code.djangoproject.com/ticket/29847>
Django <https://code.djangoproject.com/>
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