Fixed #33675 -- Dropped support for PostgreSQL 10 and PostGIS 2.4.

django/contrib/gis/db/backends/postgis/operations.py

@@ -172,8 +172,6 @@ class PostGISOperations(BaseSpatialOperations, DatabaseOperations):
             "BoundingCircle": "ST_MinimumBoundingCircle",
             "NumPoints": "ST_NPoints",
         }
-        if self.spatial_version < (2, 4, 0):
-            function_names["ForcePolygonCW"] = "ST_ForceRHR"
         return function_names
 
     @cached_property
@@ -199,7 +197,7 @@ class PostGISOperations(BaseSpatialOperations, DatabaseOperations):
                 raise ImproperlyConfigured(
                     'Cannot determine PostGIS version for database "%s" '
                     'using command "SELECT postgis_lib_version()". '
-                    "GeoDjango requires at least PostGIS version 2.4. "
+                    "GeoDjango requires at least PostGIS version 2.5. "
                     "Was the database created from a spatial database "
                     "template?" % self.connection.settings_dict["NAME"]
                 )

django/db/backends/postgresql/features.py

@@ -6,7 +6,7 @@ from django.utils.functional import cached_property
 
 
 class DatabaseFeatures(BaseDatabaseFeatures):
-    minimum_database_version = (10,)
+    minimum_database_version = (11,)
     allows_group_by_selected_pks = True
     can_return_columns_from_insert = True
     can_return_rows_from_bulk_insert = True
@@ -59,6 +59,7 @@ class DatabaseFeatures(BaseDatabaseFeatures):
     json_key_contains_list_matching_requires_list = True
     supports_update_conflicts = True
     supports_update_conflicts_with_target = True
+    supports_covering_indexes = True
     test_collations = {
         "non_default": "sv-x-icu",
         "swedish_ci": "sv-x-icu",
@@ -81,10 +82,6 @@ class DatabaseFeatures(BaseDatabaseFeatures):
             "PositiveSmallIntegerField": "SmallIntegerField",
         }
 
-    @cached_property
-    def is_postgresql_11(self):
-        return self.connection.pg_version >= 110000
-
     @cached_property
     def is_postgresql_12(self):
         return self.connection.pg_version >= 120000
@@ -98,8 +95,6 @@ class DatabaseFeatures(BaseDatabaseFeatures):
         return self.connection.pg_version >= 140000
 
     has_bit_xor = property(operator.attrgetter("is_postgresql_14"))
-    has_websearch_to_tsquery = property(operator.attrgetter("is_postgresql_11"))
-    supports_covering_indexes = property(operator.attrgetter("is_postgresql_11"))
     supports_covering_gist_indexes = property(operator.attrgetter("is_postgresql_12"))
     supports_covering_spgist_indexes = property(operator.attrgetter("is_postgresql_14"))
     supports_non_deterministic_collations = property(

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

@@ -12,7 +12,7 @@ Program                   Description                           Required
 `PROJ`_                   Cartographic Projections library      Yes (PostgreSQL and SQLite only)  9.x, 8.x, 7.x, 6.x, 5.x, 4.x
 :doc:`GDAL <../gdal>`     Geospatial Data Abstraction Library   Yes                               3.4, 3.3, 3.2, 3.1, 3.0, 2.4, 2.3, 2.2
 :doc:`GeoIP <../geoip2>`  IP-based geolocation library          No                                2
-`PostGIS`__               Spatial extensions for PostgreSQL     Yes (PostgreSQL only)             3.2, 3.1, 3.0, 2.5, 2.4
+`PostGIS`__               Spatial extensions for PostgreSQL     Yes (PostgreSQL only)             3.2, 3.1, 3.0, 2.5
 `SpatiaLite`__            Spatial extensions for SQLite         Yes (SQLite only)                 5.0, 4.3
 ========================  ====================================  ================================  ======================================
 
@@ -34,7 +34,6 @@ totally fine with GeoDjango. Your mileage may vary.
     GDAL 3.2.0 2020-11-02
     GDAL 3.3.0 2021-05-03
     GDAL 3.4.0 2021-11-04
-    PostGIS 2.4.0 2017-09-30
     PostGIS 2.5.0 2018-09-23
     PostGIS 3.0.0 2019-10-20
     PostGIS 3.1.0 2020-12-18

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

@@ -58,7 +58,7 @@ supported versions, and any notes for each of the supported database backends:
 ==================  ==============================  ==================  =========================================
 Database            Library Requirements            Supported Versions  Notes
 ==================  ==============================  ==================  =========================================
-PostgreSQL          GEOS, GDAL, PROJ, PostGIS       10+                 Requires PostGIS.
+PostgreSQL          GEOS, GDAL, PROJ, PostGIS       11+                 Requires PostGIS.
 MySQL               GEOS, GDAL                      5.7+                :ref:`Limited functionality <mysql-spatial-limitations>`.
 Oracle              GEOS, GDAL                      19+                 XE not supported.
 SQLite              GEOS, GDAL, PROJ, SpatiaLite    3.9.0+              Requires SpatiaLite 4.3+

docs/ref/contrib/postgres/indexes.txt

@@ -120,11 +120,6 @@ available from the ``django.contrib.postgres.indexes`` module.
     Provide an integer value from 10 to 100 to the fillfactor_ parameter to
     tune how packed the index pages will be. PostgreSQL's default is 90.
 
-    .. admonition:: Use this index only on PostgreSQL 10 and later
-
-        Hash indexes have been available in PostgreSQL for a long time, but
-        they suffer from a number of data integrity issues in older versions.
-
     .. _fillfactor: https://www.postgresql.org/docs/current/sql-createindex.html#SQL-CREATEINDEX-STORAGE-PARAMETERS
 
 ``SpGistIndex``

docs/ref/databases.txt

@@ -114,7 +114,7 @@ below for information on how to set up your database correctly.
 PostgreSQL notes
 ================
 
-Django supports PostgreSQL 10 and higher. `psycopg2`_ 2.8.4 or higher is
+Django supports PostgreSQL 11 and higher. `psycopg2`_ 2.8.4 or higher is
 required, though the latest release is recommended.
 
 .. _psycopg2: https://www.psycopg.org/

docs/ref/models/indexes.txt

@@ -214,7 +214,7 @@ See the PostgreSQL documentation for more details about `covering indexes`_.
 
 .. admonition:: Restrictions on PostgreSQL
 
-    PostgreSQL 11+ only supports covering B-Tree indexes, PostgreSQL 12+ also
+    PostgreSQL < 12 only supports covering B-Tree indexes, PostgreSQL 12+ also
     supports covering :class:`GiST indexes
     <django.contrib.postgres.indexes.GistIndex>`, and PostgreSQL 14+ also
     supports covering :class:`SP-GiST indexes

docs/releases/4.1.txt

@@ -453,6 +453,14 @@ backends.
 
 * Support for GDAL 2.1 is removed.
 
+* Support for PostGIS 2.4 is removed.
+
+Dropped support for PostgreSQL 10
+---------------------------------
+
+Upstream support for PostgreSQL 10 ends in November 2022. Django 4.1 supports
+PostgreSQL 11 and higher.
+
 Dropped support for MariaDB 10.2
 --------------------------------
 

docs/topics/migrations.txt

@@ -69,11 +69,6 @@ PostgreSQL
 PostgreSQL is the most capable of all the databases here in terms of schema
 support.
 
-The only caveat is that prior to PostgreSQL 11, adding columns with default
-values causes a full rewrite of the table, for a time proportional to its size.
-For this reason, it's recommended you always create new columns with
-``null=True``, as this way they will be added immediately.
-
 MySQL
 -----
 

tests/backends/postgresql/tests.py

@@ -315,9 +315,9 @@ class Tests(TestCase):
         new_connection.pg_version = 110009
         self.assertEqual(new_connection.get_database_version(), (11, 9))
 
-    @mock.patch.object(connection, "get_database_version", return_value=(9, 6))
+    @mock.patch.object(connection, "get_database_version", return_value=(10,))
     def test_check_database_version_supported(self, mocked_get_database_version):
-        msg = "PostgreSQL 10 or later is required (found 9.6)."
+        msg = "PostgreSQL 11 or later is required (found 10)."
         with self.assertRaisesMessage(NotSupportedError, msg):
             connection.check_database_version_supported()
         self.assertTrue(mocked_get_database_version.called)

tests/postgres_tests/test_search.py

@@ -7,7 +7,7 @@ transcript.
 """
 from django.db import connection
 from django.db.models import F, Value
-from django.test import modify_settings, skipUnlessDBFeature
+from django.test import modify_settings
 
 from . import PostgreSQLSimpleTestCase, PostgreSQLTestCase
 from .models import Character, Line, LineSavedSearch, Scene
@@ -265,7 +265,6 @@ class MultipleFieldsTest(GrailTestData, PostgreSQLTestCase):
         )
         self.assertSequenceEqual(searched, [self.french])
 
-    @skipUnlessDBFeature("has_websearch_to_tsquery")
     def test_web_search(self):
         line_qs = Line.objects.annotate(search=SearchVector("dialogue"))
         searched = line_qs.filter(
@@ -290,7 +289,6 @@ class MultipleFieldsTest(GrailTestData, PostgreSQLTestCase):
         )
         self.assertSequenceEqual(searched, [self.verse0, self.verse1])
 
-    @skipUnlessDBFeature("has_websearch_to_tsquery")
     def test_web_search_with_config(self):
         line_qs = Line.objects.annotate(
             search=SearchVector("scene__setting", "dialogue", config="french"),