File django-sqlite-326.patch of Package python-Django1

From: Simon Charette <charette.s@gmail.com>
Date: Thu, 6 Dec 2018 11:37:43 -0500
Subject: Fixed #29182 -- Adjusted SQLite schema table alteration to support
 3.26.

SQLite 3.26 repoints foreign key constraints on table renames even when
foreign_keys pragma is off which breaks every operation that requires
a table rebuild to simulate unsupported ALTER TABLE statements.

Fortunately the newly introduced legacy_alter_table pragma allows one to disable
this behavior and restore the previous schema editor assumptions.

Thanks Florian Apolloner, Christoph Trassl, Chris Lamb for the report and
troubleshooting assistance.
---
 django/db/backends/sqlite3/schema.py | 2 ++
 1 file changed, 2 insertions(+)

Index: Django-1.11.18/django/db/backends/sqlite3/schema.py
===================================================================
--- Django-1.11.18.orig/django/db/backends/sqlite3/schema.py
+++ Django-1.11.18/django/db/backends/sqlite3/schema.py
@@ -24,10 +24,12 @@ class DatabaseSchemaEditor(BaseDatabaseS
             c.execute('PRAGMA foreign_keys')
             self._initial_pragma_fk = c.fetchone()[0]
             c.execute('PRAGMA foreign_keys = 0')
+        self.connection.cursor().execute('PRAGMA legacy_alter_table = ON')
         return super(DatabaseSchemaEditor, self).__enter__()
 
     def __exit__(self, exc_type, exc_value, traceback):
         super(DatabaseSchemaEditor, self).__exit__(exc_type, exc_value, traceback)
+        self.connection.cursor().execute('PRAGMA legacy_alter_table = OFF')
         with self.connection.cursor() as c:
             # Restore initial FK setting - PRAGMA values can't be parametrized
             c.execute('PRAGMA foreign_keys = %s' % int(self._initial_pragma_fk))