Fixed #36671 -- Dropped support for SQLite < 3.37.

django/db/backends/sqlite3/features.py

@@ -10,7 +10,7 @@ from .base import Database
 
 
 class DatabaseFeatures(BaseDatabaseFeatures):
-    minimum_database_version = (3, 31)
+    minimum_database_version = (3, 37)
     test_db_allows_multiple_connections = False
     supports_unspecified_pk = True
     supports_timezones = False
@@ -26,8 +26,6 @@ class DatabaseFeatures(BaseDatabaseFeatures):
     time_cast_precision = 3
     can_release_savepoints = True
     has_case_insensitive_like = True
-    # Is "ALTER TABLE ... DROP COLUMN" supported?
-    can_alter_table_drop_column = Database.sqlite_version_info >= (3, 35, 5)
     supports_parentheses_in_compound = False
     can_defer_constraint_checks = True
     supports_over_clause = True
@@ -57,6 +55,9 @@ class DatabaseFeatures(BaseDatabaseFeatures):
     insert_test_table_with_defaults = 'INSERT INTO {} ("null") VALUES (1)'
     supports_default_keyword_in_insert = False
     supports_unlimited_charfield = True
+    can_return_columns_from_insert = True
+    can_return_rows_from_bulk_insert = True
+    can_return_rows_from_update = True
 
     @cached_property
     def django_test_skips(self):
@@ -146,8 +147,8 @@ class DatabaseFeatures(BaseDatabaseFeatures):
         """
         SQLite has a variable limit per query. The limit can be changed using
         the SQLITE_MAX_VARIABLE_NUMBER compile-time option (which defaults to
-        999 in versions < 3.32.0 or 32766 in newer versions) or lowered per
+        32766) or lowered per connection at run-time with
-        connection at run-time with setlimit(SQLITE_LIMIT_VARIABLE_NUMBER, N).
+        setlimit(SQLITE_LIMIT_VARIABLE_NUMBER, N).
         """
         return self.connection.connection.getlimit(sqlite3.SQLITE_LIMIT_VARIABLE_NUMBER)
 
@@ -163,15 +164,3 @@ class DatabaseFeatures(BaseDatabaseFeatures):
 
     can_introspect_json_field = property(operator.attrgetter("supports_json_field"))
     has_json_object_function = property(operator.attrgetter("supports_json_field"))
-
-    @cached_property
-    def can_return_columns_from_insert(self):
-        return Database.sqlite_version_info >= (3, 35)
-
-    can_return_rows_from_bulk_insert = property(
-        operator.attrgetter("can_return_columns_from_insert")
-    )
-
-    can_return_rows_from_update = property(
-        operator.attrgetter("can_return_columns_from_insert")
-    )

django/db/backends/sqlite3/introspection.py

@@ -342,8 +342,7 @@ class DatabaseIntrospection(BaseDatabaseIntrospection):
             "PRAGMA index_list(%s)" % self.connection.ops.quote_name(table_name)
         )
         for row in cursor.fetchall():
-            # SQLite 3.8.9+ has 5 columns, however older versions only give 3
+            # Discard last 2 columns.
-            # columns. Discard last 2 columns if there.
             number, index, unique = row[:3]
             cursor.execute(
                 "SELECT sql FROM sqlite_master WHERE type='index' AND name=%s",

django/db/backends/sqlite3/schema.py

@@ -339,10 +339,9 @@ class DatabaseSchemaEditor(BaseDatabaseSchemaEditor):
                 self.delete_model(field.remote_field.through)
             # For explicit "through" M2M fields, do nothing
         elif (
-            self.connection.features.can_alter_table_drop_column
             # Primary keys, unique fields, indexed fields, and foreign keys are
             # not supported in ALTER TABLE DROP COLUMN.
-            and not field.primary_key
+            not field.primary_key
             and not field.unique
             and not field.db_index
             and not (field.remote_field and field.db_constraint)

docs/ref/contrib/gis/install/index.txt

@@ -60,7 +60,7 @@ Database            Library Requirements            Supported Versions  Notes
 PostgreSQL          GEOS, GDAL, PROJ, PostGIS       15+                 Requires PostGIS.
 MySQL               GEOS, GDAL                      8.0.11+             :ref:`Limited functionality <mysql-spatial-limitations>`.
 Oracle              GEOS, GDAL                      19+                 XE not supported.
-SQLite              GEOS, GDAL, PROJ, SpatiaLite    3.31.0+             Requires SpatiaLite 4.3+
+SQLite              GEOS, GDAL, PROJ, SpatiaLite    3.37.0+             Requires SpatiaLite 4.3+
 ==================  ==============================  ==================  =========================================
 
 See also `this comparison matrix`__ on the OSGeo Wiki for

docs/ref/databases.txt

@@ -814,7 +814,7 @@ appropriate typecasting.
 SQLite notes
 ============
 
-Django supports SQLite 3.31.0 and later.
+Django supports SQLite 3.37.0 and later.
 
 SQLite_ provides an excellent development alternative for applications that
 are predominantly read-only or require a smaller installation footprint. As

docs/ref/models/querysets.txt

@@ -2439,8 +2439,8 @@ This has a number of caveats though:
 * If the model's primary key is an :class:`~django.db.models.AutoField` or has
   a :attr:`~django.db.models.Field.db_default` value, and ``ignore_conflicts``
   is ``False``, the primary key attribute can only be retrieved on certain
-  databases (currently PostgreSQL, MariaDB, and SQLite 3.35+). On other
+  databases (currently PostgreSQL, MariaDB, and SQLite). On other databases, it
-  databases, it will not be set.
+  will not be set.
 * It does not work with many-to-many relationships.
 * It casts ``objs`` to a list, which fully evaluates ``objs`` if it's a
   generator. The cast allows inspecting all objects so that any objects with a

docs/releases/6.1.txt

@@ -325,6 +325,8 @@ Miscellaneous
 * :class:`~django.contrib.contenttypes.fields.GenericForeignKey` now uses a
   separate descriptor class: the private ``GenericForeignKeyDescriptor``.
 
+* The minimum supported version of SQLite is increased from 3.31.0 to 3.37.0.
+
 .. _deprecated-features-6.1:
 
 Features deprecated in 6.1

tests/backends/sqlite/tests.py

@@ -109,9 +109,9 @@ class Tests(TestCase):
             connections["default"].close()
             self.assertTrue(os.path.isfile(os.path.join(tmp, "test.db")))
 
-    @mock.patch.object(connection, "get_database_version", return_value=(3, 30))
+    @mock.patch.object(connection, "get_database_version", return_value=(3, 36))
     def test_check_database_version_supported(self, mocked_get_database_version):
-        msg = "SQLite 3.31 or later is required (found 3.30)."
+        msg = "SQLite 3.37 or later is required (found 3.36)."
         with self.assertRaisesMessage(NotSupportedError, msg):
             connection.check_database_version_supported()
         self.assertTrue(mocked_get_database_version.called)