[1.5.x] Fixed #5805 -- it is now possible to specify multi-column indexes. Thanks to jgelens for the original patch. Backport of 4285571c5a.

tests/regressiontests/indexes/models.py

@@ -0,0 +1,11 @@
+from django.db import models
+
+
+class Article(models.Model):
+    headline = models.CharField(max_length=100)
+    pub_date = models.DateTimeField()
+
+    class Meta:
+        index_together = [
+            ["headline", "pub_date"],
+        ]

tests/regressiontests/indexes/tests.py

@@ -0,0 +1,12 @@
+from django.core.management.color import no_style
+from django.db import connections, DEFAULT_DB_ALIAS
+from django.test import TestCase
+
+from .models import Article
+
+
+class IndexesTests(TestCase):
+    def test_index_together(self):
+        connection = connections[DEFAULT_DB_ALIAS]
+        index_sql = connection.creation.sql_indexes_for_model(Article, no_style())
+        self.assertEqual(len(index_sql), 1)

tests/regressiontests/initial_sql_regress/tests.py

@@ -1,3 +1,6 @@
+from django.core.management.color import no_style
+from django.core.management.sql import custom_sql_for_model
+from django.db import connections, DEFAULT_DB_ALIAS
 from django.test import TestCase
 
 from .models import Simple
@@ -15,10 +18,6 @@ class InitialSQLTests(TestCase):
         self.assertEqual(Simple.objects.count(), 0)
 
     def test_custom_sql(self):
-        from django.core.management.sql import custom_sql_for_model
-        from django.core.management.color import no_style
-        from django.db import connections, DEFAULT_DB_ALIAS
-
         # Simulate the custom SQL loading by syncdb
         connection = connections[DEFAULT_DB_ALIAS]
         custom_sql = custom_sql_for_model(Simple, no_style(), connection)

tests/regressiontests/introspection/models.py

@@ -17,6 +17,7 @@ class Reporter(models.Model):
     def __str__(self):
         return "%s %s" % (self.first_name, self.last_name)
 
+
 @python_2_unicode_compatible
 class Article(models.Model):
     headline = models.CharField(max_length=100)
@@ -28,3 +29,6 @@ class Article(models.Model):
 
     class Meta:
         ordering = ('headline',)
+        index_together = [
+            ["headline", "pub_date"],
+        ]

tests/regressiontests/introspection/tests.py

@@ -1,4 +1,4 @@
-from __future__ import absolute_import,unicode_literals
+from __future__ import absolute_import, unicode_literals
 
 from functools import update_wrapper
 
@@ -13,7 +13,7 @@ if connection.vendor == 'oracle':
 else:
     expectedFailureOnOracle = lambda f: f
 
-#
+
 # The introspection module is optional, so methods tested here might raise
 # NotImplementedError. This is perfectly acceptable behavior for the backend
 # in question, but the tests need to handle this without failing. Ideally we'd
@@ -23,7 +23,7 @@ else:
 # wrapper that ignores the exception.
 #
 # The metaclass is just for fun.
-#
+
 
 def ignore_not_implemented(func):
     def _inner(*args, **kwargs):
@@ -34,15 +34,16 @@ def ignore_not_implemented(func):
     update_wrapper(_inner, func)
     return _inner
 
+
 class IgnoreNotimplementedError(type):
     def __new__(cls, name, bases, attrs):
-        for k,v in attrs.items():
+        for k, v in attrs.items():
             if k.startswith('test'):
                 attrs[k] = ignore_not_implemented(v)
         return type.__new__(cls, name, bases, attrs)
 
-class IntrospectionTests(six.with_metaclass(IgnoreNotimplementedError, TestCase)):
 
+class IntrospectionTests(six.with_metaclass(IgnoreNotimplementedError, TestCase)):
     def test_table_names(self):
         tl = connection.introspection.table_names()
         self.assertEqual(tl, sorted(tl))
@@ -163,6 +164,7 @@ class IntrospectionTests(six.with_metaclass(IgnoreNotimplementedError, TestCase)
         self.assertNotIn('first_name', indexes)
         self.assertIn('id', indexes)
 
+
 def datatype(dbtype, description):
     """Helper to convert a data type into a string."""
     dt = connection.introspection.get_field_type(dbtype, description)