[1.7.x] Fixed #22844: Duplicate SQL for SQLite FKs

django/db/backends/sqlite3/schema.py

@@ -104,7 +104,9 @@ class DatabaseSchemaEditor(BaseDatabaseSchemaEditor):
         body['__module__'] = model.__module__
 
         temp_model = type(model._meta.object_name, model.__bases__, body)
-        # Create a new table with that format
+        # Create a new table with that format. We remove things from the
+        # deferred SQL that match our table name, too
+        self.deferred_sql = [x for x in self.deferred_sql if model._meta.db_table not in x]
         self.create_model(temp_model)
         # Copy data from the old table
         field_maps = list(mapping.items())

tests/migrations/test_operations.py

@@ -156,6 +156,49 @@ class OperationTests(MigrationTestBase):
         self.assertEqual(len(definition[2]), 0)
         self.assertEqual(definition[1][0], "Pony")
 
+    def test_create_model_with_unique_after(self):
+        """
+        Tests the CreateModel operation directly followed by an
+        AlterUniqueTogether (bug #22844 - sqlite remake issues)
+        """
+        operation1 = migrations.CreateModel(
+            "Pony",
+            [
+                ("id", models.AutoField(primary_key=True)),
+                ("pink", models.IntegerField(default=1)),
+            ],
+        )
+        operation2 = migrations.CreateModel(
+            "Rider",
+            [
+                ("id", models.AutoField(primary_key=True)),
+                ("number", models.IntegerField(default=1)),
+                ("pony", models.ForeignKey("test_crmoua.Pony")),
+            ],
+        )
+        operation3 = migrations.AlterUniqueTogether(
+            "Rider",
+            [
+                ("number", "pony"),
+            ],
+        )
+        # Test the database alteration
+        project_state = ProjectState()
+        self.assertTableNotExists("test_crmoua_pony")
+        self.assertTableNotExists("test_crmoua_rider")
+        with connection.schema_editor() as editor:
+            new_state = project_state.clone()
+            operation1.state_forwards("test_crmoua", new_state)
+            operation1.database_forwards("test_crmoua", editor, project_state, new_state)
+            project_state, new_state = new_state, new_state.clone()
+            operation2.state_forwards("test_crmoua", new_state)
+            operation2.database_forwards("test_crmoua", editor, project_state, new_state)
+            project_state, new_state = new_state, new_state.clone()
+            operation3.state_forwards("test_crmoua", new_state)
+            operation3.database_forwards("test_crmoua", editor, project_state, new_state)
+        self.assertTableExists("test_crmoua_pony")
+        self.assertTableExists("test_crmoua_rider")
+
     def test_create_model_m2m(self):
         """
         Test the creation of a model with a ManyToMany field and the