Fixed #33228 -- Changed value of BaseDatabaseFeatures.has_case_insensitive_like to False.

django/db/backends/base/features.py

@@ -201,7 +201,7 @@ class BaseDatabaseFeatures:
     closed_cursor_error_class = ProgrammingError
 
     # Does 'a' LIKE 'A' match?
-    has_case_insensitive_like = True
+    has_case_insensitive_like = False
 
     # Suffix for backends that don't support "SELECT xxx;" queries.
     bare_select_suffix = ''

django/db/backends/mysql/features.py

@@ -24,7 +24,6 @@ class DatabaseFeatures(BaseDatabaseFeatures):
     supports_select_difference = False
     supports_slicing_ordering_in_compound = True
     supports_index_on_text_field = False
-    has_case_insensitive_like = False
     create_test_procedure_without_params_sql = """
         CREATE PROCEDURE test_procedure ()
         BEGIN

django/db/backends/oracle/features.py

@@ -39,7 +39,6 @@ class DatabaseFeatures(BaseDatabaseFeatures):
     # does by uppercasing all identifiers.
     ignores_table_name_case = True
     supports_index_on_text_field = False
-    has_case_insensitive_like = False
     create_test_procedure_without_params_sql = """
         CREATE PROCEDURE "TEST_PROCEDURE" AS
             V_I INTEGER;

django/db/backends/postgresql/features.py

@@ -28,7 +28,6 @@ class DatabaseFeatures(BaseDatabaseFeatures):
     supports_combined_alters = True
     nulls_order_largest = True
     closed_cursor_error_class = InterfaceError
-    has_case_insensitive_like = False
     greatest_least_ignores_nulls = True
     can_clone_databases = True
     supports_temporal_subtraction = True

django/db/backends/sqlite3/features.py

@@ -30,6 +30,7 @@ class DatabaseFeatures(BaseDatabaseFeatures):
     supports_cast_with_precision = False
     time_cast_precision = 3
     can_release_savepoints = True
+    has_case_insensitive_like = True
     # Is "ALTER TABLE ... RENAME COLUMN" supported?
     can_alter_table_rename_column = Database.sqlite_version_info >= (3, 25, 0)
     supports_parentheses_in_compound = False

docs/releases/4.1.txt

@@ -237,7 +237,8 @@ Database backend API
 This section describes changes that may be needed in third-party database
 backends.
 
-* ...
+* ``BaseDatabaseFeatures.has_case_insensitive_like`` is changed from ``True``
+  to ``False`` to reflect the behavior of most databases.
 
 Dropped support for MariaDB 10.2
 --------------------------------