From 80cc9994d178d4afff0c85f9be8393bcedfd2687 Mon Sep 17 00:00:00 2001
From: Tim Graham <timograham@gmail.com>
Date: Fri, 8 Aug 2025 22:02:11 -0400
Subject: [PATCH] Remove unused OneToOneField from DatabaseWrapper.data_types.

OneToOneField uses the type of the related field.
---
 django/db/backends/mysql/base.py      | 1 -
 django/db/backends/oracle/base.py     | 1 -
 django/db/backends/postgresql/base.py | 1 -
 django/db/backends/sqlite3/base.py    | 1 -
 4 files changed, 4 deletions(-)

diff --git a/django/db/backends/mysql/base.py b/django/db/backends/mysql/base.py
index 2ad8627dfe..e83dc106f7 100644
--- a/django/db/backends/mysql/base.py
+++ b/django/db/backends/mysql/base.py
@@ -126,7 +126,6 @@ class DatabaseWrapper(BaseDatabaseWrapper):
         "IPAddressField": "char(15)",
         "GenericIPAddressField": "char(39)",
         "JSONField": "json",
-        "OneToOneField": "integer",
         "PositiveBigIntegerField": "bigint UNSIGNED",
         "PositiveIntegerField": "integer UNSIGNED",
         "PositiveSmallIntegerField": "smallint UNSIGNED",
diff --git a/django/db/backends/oracle/base.py b/django/db/backends/oracle/base.py
index c2ad881ecc..c8b49609bd 100644
--- a/django/db/backends/oracle/base.py
+++ b/django/db/backends/oracle/base.py
@@ -135,7 +135,6 @@ class DatabaseWrapper(BaseDatabaseWrapper):
         "BigIntegerField": "NUMBER(19)",
         "IPAddressField": "VARCHAR2(15)",
         "GenericIPAddressField": "VARCHAR2(39)",
-        "OneToOneField": "NUMBER(11)",
         "PositiveBigIntegerField": "NUMBER(19)",
         "PositiveIntegerField": "NUMBER(11)",
         "PositiveSmallIntegerField": "NUMBER(11)",
diff --git a/django/db/backends/postgresql/base.py b/django/db/backends/postgresql/base.py
index cafa4c7a9c..17ac417fff 100644
--- a/django/db/backends/postgresql/base.py
+++ b/django/db/backends/postgresql/base.py
@@ -113,7 +113,6 @@ class DatabaseWrapper(BaseDatabaseWrapper):
         "IPAddressField": "inet",
         "GenericIPAddressField": "inet",
         "JSONField": "jsonb",
-        "OneToOneField": "integer",
         "PositiveBigIntegerField": "bigint",
         "PositiveIntegerField": "integer",
         "PositiveSmallIntegerField": "smallint",
diff --git a/django/db/backends/sqlite3/base.py b/django/db/backends/sqlite3/base.py
index e378975207..1548dbb307 100644
--- a/django/db/backends/sqlite3/base.py
+++ b/django/db/backends/sqlite3/base.py
@@ -81,7 +81,6 @@ class DatabaseWrapper(BaseDatabaseWrapper):
         "IPAddressField": "char(15)",
         "GenericIPAddressField": "char(39)",
         "JSONField": "text",
-        "OneToOneField": "integer",
         "PositiveBigIntegerField": "bigint unsigned",
         "PositiveIntegerField": "integer unsigned",
         "PositiveSmallIntegerField": "smallint unsigned",