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[1.11.x] Fixed #28197 -- Fixed introspection of index field ordering on PostgreSQL.

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Backport of 3a5299c19c from master
This commit is contained in:
Tim Schneider
2017-05-12 18:01:30 +02:00
committed by Tim Graham
parent d945b7e42a
commit 566726ff96
4 changed files with 16 additions and 4 deletions
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7
tests/introspection/tests.py
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@@ -191,10 +191,14 @@ class IntrospectionTests(TransactionTestCase):
with connection.cursor() as cursor:
constraints = connection.introspection.get_constraints(cursor, Article._meta.db_table)
index = {}
index2 = {}
for key, val in constraints.items():
if val['columns'] == ['headline', 'pub_date']:
index = val
if val['columns'] == ['headline', 'response_to_id', 'pub_date', 'reporter_id']:
index2 = val
self.assertEqual(index['type'], Index.suffix)
self.assertEqual(index2['type'], Index.suffix)
@skipUnlessDBFeature('supports_index_column_ordering')
def test_get_constraints_indexes_orders(self):
@@ -208,13 +212,14 @@ class IntrospectionTests(TransactionTestCase):
['reporter_id'],
['headline', 'pub_date'],
['response_to_id'],
['headline', 'response_to_id', 'pub_date', 'reporter_id'],
]
for key, val in constraints.items():
if val['index'] and not (val['primary_key'] or val['unique']):
self.assertIn(val['columns'], expected_columns)
self.assertEqual(val['orders'], ['ASC'] * len(val['columns']))
indexes_verified += 1
self.assertEqual(indexes_verified, 3)
self.assertEqual(indexes_verified, 4)
def datatype(dbtype, description):