Fixed #13773 -- Passed in the current connection in a call to db_type(). Thanks to Suor for the report and patch.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@13451 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/db/backends/postgresql/creation.py

@@ -64,7 +64,7 @@ class DatabaseCreation(BaseDatabaseCreation):
             # a second index that specifies their operator class, which is
             # needed when performing correct LIKE queries outside the
             # C locale. See #12234.
-            db_type = f.db_type()
+            db_type = f.db_type(connection=self.connection)
             if db_type.startswith('varchar'):
                 output.append(get_index_sql('%s_%s_like' % (db_table, f.column),
                                             ' varchar_pattern_ops'))