id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
12739	Inconsistent sorting behavior in mult-table inheritance query for different database backends	George Song	nobody	"Given the following models:
{{{
#!python
from django.db import models

class A(models.Model):
    name = models.CharField(max_length=50)

class B(A):
   pass

class C(A):
   pass
}}}

The following query returns different queryset order for `sqlite3` vs. `postgresql_psycopg2`:
{{{
#!python
A.objects.order_by('b', 'name')
}}}

SQLite will sort B objects, followed by C objects. PostgreSQL will sort C objects, followed by B objects."		closed	Database layer (models, ORM)	1.1		invalid			Unreviewed	0	0	0	0	0	0