Fixed #32357 -- Dropped support for PostgreSQL 9.6 and PostGIS 2.3.

1 files changed, 4 insertions, 17 deletions

diff --git a/django/db/backends/postgresql/features.py b/django/db/backends/postgresql/features.py
index 84259c0c19..722bfe0475 100644
--- a/django/db/backends/postgresql/features.py
+++ b/django/db/backends/postgresql/features.py
@@ -58,6 +58,10 @@ class DatabaseFeatures(BaseDatabaseFeatures):
     supports_deferrable_unique_constraints = True
     has_json_operators = True
     json_key_contains_list_matching_requires_list = True
+    test_collations = {
+        'non_default': 'sv-x-icu',
+        'swedish_ci': 'sv-x-icu',
+    }
 
     django_test_skips = {
         'opclasses are PostgreSQL only.': {
@@ -66,16 +70,6 @@ class DatabaseFeatures(BaseDatabaseFeatures):
     }
 
     @cached_property
-    def test_collations(self):
-        # PostgreSQL < 10 doesn't support ICU collations.
-        if self.is_postgresql_10:
-            return {
-                'non_default': 'sv-x-icu',
-                'swedish_ci': 'sv-x-icu',
-            }
-        return {}
-
-    @cached_property
     def introspected_field_types(self):
         return {
             **super().introspected_field_types,
@@ -85,10 +79,6 @@ class DatabaseFeatures(BaseDatabaseFeatures):
         }
 
     @cached_property
-    def is_postgresql_10(self):
-        return self.connection.pg_version >= 100000
-
-    @cached_property
     def is_postgresql_11(self):
         return self.connection.pg_version >= 110000
 
@@ -100,10 +90,7 @@ class DatabaseFeatures(BaseDatabaseFeatures):
     def is_postgresql_13(self):
         return self.connection.pg_version >= 130000
 
-    has_brin_autosummarize = property(operator.attrgetter('is_postgresql_10'))
     has_websearch_to_tsquery = property(operator.attrgetter('is_postgresql_11'))
-    supports_table_partitions = property(operator.attrgetter('is_postgresql_10'))
     supports_covering_indexes = property(operator.attrgetter('is_postgresql_11'))
     supports_covering_gist_indexes = property(operator.attrgetter('is_postgresql_12'))
     supports_non_deterministic_collations = property(operator.attrgetter('is_postgresql_12'))
-    supports_alternate_collation_providers = property(operator.attrgetter('is_postgresql_10'))