Fixed #31579 -- Dropped support for PostgreSQL 9.5 and PostGIS 2.2.

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

@@ -180,7 +180,7 @@ 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 2.2. '
+                    'GeoDjango requires at least PostGIS version 2.3. '
                     'Was the database created from a spatial database '
                     'template?' % self.connection.settings_dict['NAME']
                 )

django/contrib/postgres/indexes.py

@@ -68,10 +68,6 @@ class BloomIndex(PostgresIndex):
             kwargs['columns'] = self.columns
         return path, args, kwargs
 
-    def check_supported(self, schema_editor):
-        if not schema_editor.connection.features.has_bloom_index:
-            raise NotSupportedError('Bloom indexes require PostgreSQL 9.6+.')
-
     def get_with_params(self):
         with_params = []
         if self.length is not None:

django/db/backends/postgresql/features.py

@@ -59,10 +59,6 @@ class DatabaseFeatures(BaseDatabaseFeatures):
     validates_explain_options = False  # A query will error on invalid options.
     supports_deferrable_unique_constraints = True
 
-    @cached_property
-    def is_postgresql_9_6(self):
-        return self.connection.pg_version >= 90600
-
     @cached_property
     def is_postgresql_10(self):
         return self.connection.pg_version >= 100000
@@ -75,8 +71,6 @@ class DatabaseFeatures(BaseDatabaseFeatures):
     def is_postgresql_12(self):
         return self.connection.pg_version >= 120000
 
-    has_bloom_index = property(operator.attrgetter('is_postgresql_9_6'))
     has_brin_autosummarize = property(operator.attrgetter('is_postgresql_10'))
-    has_phraseto_tsquery = property(operator.attrgetter('is_postgresql_9_6'))
     has_websearch_to_tsquery = property(operator.attrgetter('is_postgresql_11'))
     supports_table_partitions = property(operator.attrgetter('is_postgresql_10'))

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

@@ -12,7 +12,7 @@ Program                   Description                           Required
 `PROJ`_                   Cartographic Projections library      Yes (PostgreSQL and SQLite only)  6.x, 5.x, 4.x
 :doc:`GDAL <../gdal>`     Geospatial Data Abstraction Library   Yes                               3.1, 3.0, 2.4, 2.3, 2.2, 2.1, 2.0
 :doc:`GeoIP <../geoip2>`  IP-based geolocation library          No                                2
-`PostGIS`__               Spatial extensions for PostgreSQL     Yes (PostgreSQL only)             3.0, 2.5, 2.4, 2.3, 2.2
+`PostGIS`__               Spatial extensions for PostgreSQL     Yes (PostgreSQL only)             3.0, 2.5, 2.4, 2.3
 `SpatiaLite`__            Spatial extensions for SQLite         Yes (SQLite only)                 4.3
 ========================  ====================================  ================================  ===================================
 
@@ -32,7 +32,6 @@ totally fine with GeoDjango. Your mileage may vary.
     GDAL 2.4.0 2018-12
     GDAL 3.0.0 2019-05
     GDAL 3.1.0 2020-05-07
-    PostGIS 2.2.0 2015-10-17
     PostGIS 2.3.0 2016-09-26
     PostGIS 2.4.0 2017-09-30
     PostGIS 2.5.0 2018-09-23

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       9.5+                Requires PostGIS.
+PostgreSQL          GEOS, GDAL, PROJ, PostGIS       9.6+                Requires PostGIS.
 MySQL               GEOS, GDAL                      5.6.1+              :ref:`Limited functionality <mysql-spatial-limitations>`.
 Oracle              GEOS, GDAL                      12.2+               XE not supported.
 SQLite              GEOS, GDAL, PROJ, SpatiaLite    3.8.3+              Requires SpatiaLite 4.3+

docs/ref/databases.txt

@@ -103,7 +103,7 @@ below for information on how to set up your database correctly.
 PostgreSQL notes
 ================
 
-Django supports PostgreSQL 9.5 and higher. `psycopg2`_ 2.5.4 or higher is
+Django supports PostgreSQL 9.6 and higher. `psycopg2`_ 2.5.4 or higher is
 required, though the latest release is recommended.
 
 .. _psycopg2: https://www.psycopg.org/

docs/releases/3.2.txt

@@ -224,6 +224,17 @@ backends.
 
 * ...
 
+:mod:`django.contrib.gis`
+-------------------------
+
+* Support for PostGIS 2.2 is removed.
+
+Dropped support for PostgreSQL 9.5
+----------------------------------
+
+Upstream support for PostgreSQL 9.5 ends in February 2021. Django 3.2 supports
+PostgreSQL 9.6 and higher.
+
 Miscellaneous
 -------------
 

tests/postgres_tests/migrations/0001_setup_extensions.py

@@ -1,6 +1,6 @@
 from unittest import mock
 
-from django.db import connection, migrations
+from django.db import migrations
 
 try:
     from django.contrib.postgres.operations import (
@@ -23,11 +23,7 @@ except ImportError:
 class Migration(migrations.Migration):
 
     operations = [
-        (
+        BloomExtension(),
-            BloomExtension()
-            if getattr(connection.features, 'has_bloom_index', False)
-            else mock.Mock()
-        ),
         BtreeGinExtension(),
         BtreeGistExtension(),
         CITextExtension(),

tests/postgres_tests/test_indexes.py

@@ -260,7 +260,6 @@ class SchemaTests(PostgreSQLTestCase):
             editor.remove_index(IntegerArrayModel, index)
         self.assertNotIn(index_name, self.get_constraints(IntegerArrayModel._meta.db_table))
 
-    @skipUnlessDBFeature('has_bloom_index')
     def test_bloom_index(self):
         index_name = 'char_field_model_field_bloom'
         index = BloomIndex(fields=['field'], name=index_name)
@@ -272,7 +271,6 @@ class SchemaTests(PostgreSQLTestCase):
             editor.remove_index(CharFieldModel, index)
         self.assertNotIn(index_name, self.get_constraints(CharFieldModel._meta.db_table))
 
-    @skipUnlessDBFeature('has_bloom_index')
     def test_bloom_parameters(self):
         index_name = 'char_field_model_field_bloom_params'
         index = BloomIndex(fields=['field'], name=index_name, length=512, columns=[3])
@@ -285,16 +283,6 @@ class SchemaTests(PostgreSQLTestCase):
             editor.remove_index(CharFieldModel, index)
         self.assertNotIn(index_name, self.get_constraints(CharFieldModel._meta.db_table))
 
-    def test_bloom_index_not_supported(self):
-        index_name = 'bloom_index_exception'
-        index = BloomIndex(fields=['field'], name=index_name)
-        msg = 'Bloom indexes require PostgreSQL 9.6+.'
-        with self.assertRaisesMessage(NotSupportedError, msg):
-            with mock.patch('django.db.backends.postgresql.features.DatabaseFeatures.has_bloom_index', False):
-                with connection.schema_editor() as editor:
-                    editor.add_index(CharFieldModel, index)
-        self.assertNotIn(index_name, self.get_constraints(CharFieldModel._meta.db_table))
-
     def test_brin_index(self):
         index_name = 'char_field_model_field_brin'
         index = BrinIndex(fields=['field'], name=index_name, pages_per_range=4)

tests/postgres_tests/test_search.py

@@ -195,7 +195,6 @@ class MultipleFieldsTest(GrailTestData, PostgreSQLTestCase):
         ).filter(search=str(self.crowd.id))
         self.assertSequenceEqual(searched, [self.crowd])
 
-    @skipUnlessDBFeature('has_phraseto_tsquery')
     def test_phrase_search(self):
         line_qs = Line.objects.annotate(search=SearchVector('dialogue'))
         searched = line_qs.filter(search=SearchQuery('burned body his away', search_type='phrase'))
@@ -203,7 +202,6 @@ class MultipleFieldsTest(GrailTestData, PostgreSQLTestCase):
         searched = line_qs.filter(search=SearchQuery('his body burned away', search_type='phrase'))
         self.assertSequenceEqual(searched, [self.verse1])
 
-    @skipUnlessDBFeature('has_phraseto_tsquery')
     def test_phrase_search_with_config(self):
         line_qs = Line.objects.annotate(
             search=SearchVector('scene__setting', 'dialogue', config='french'),
@@ -386,7 +384,6 @@ class TestCombinations(GrailTestData, PostgreSQLTestCase):
         )
         self.assertSequenceEqual(searched, [self.verse2])
 
-    @skipUnlessDBFeature('has_phraseto_tsquery')
     def test_combine_raw_phrase(self):
         searched = Line.objects.filter(
             dialogue__search=(