From 79755496964b3861a5bd73f051344780c0ebeadb Mon Sep 17 00:00:00 2001
From: Takayuki SHIMIZUKAWA <shimizukawa@gmail.com>
Date: Mon, 16 Sep 2024 22:44:44 +0000
Subject: [PATCH] fix for #143 enabling backward migrations on dj50

---
 django_redshift_backend/base.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/django_redshift_backend/base.py b/django_redshift_backend/base.py
index f4f58b0..ab158a0 100644
--- a/django_redshift_backend/base.py
+++ b/django_redshift_backend/base.py
@@ -72,6 +72,10 @@ class DatabaseFeatures(BasePGDatabaseFeatures):
     # refs https://github.com/django/django/blob/3702819/django/db/backends/sqlite3/schema.py#L131-L144
     can_rollback_ddl = False
 
+    # since django-5.0
+    # https://github.com/django/django/pull/16809
+    delete_can_self_reference_subquery = True
+
 
 class DatabaseOperations(BasePGDatabaseOperations):
     def last_insert_id(self, cursor, table_name, pk_name):