From 8712027b226f1400ea31f9c0500fbfe359dd9d07 Mon Sep 17 00:00:00 2001
From: Mariusz Felisiak <felisiak.mariusz@gmail.com>
Date: Wed, 15 Jan 2020 15:07:07 +0100
Subject: [PATCH] [3.0.x] Refs #29998 -- Corrected auto-created OneToOneField
 parent_link in MTI docs.

Backport of d202846ced2f58d7a34ad80bfe2bde8a542a70b9 from master
---
 docs/topics/db/models.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/docs/topics/db/models.txt b/docs/topics/db/models.txt
index a047f58b78..75a46485ac 100644
--- a/docs/topics/db/models.txt
+++ b/docs/topics/db/models.txt
@@ -1092,6 +1092,7 @@ The automatically-created :class:`~django.db.models.OneToOneField` on
     place_ptr = models.OneToOneField(
         Place, on_delete=models.CASCADE,
         parent_link=True,
+        primary_key=True,
     )
 
 You can override that field by declaring your own