diff --git a/tests/integration/test_select_access_rights/test_from_system_tables.py b/tests/integration/test_select_access_rights/test_from_system_tables.py
index a4dfa6626011..3cd6b90109cb 100644
--- a/tests/integration/test_select_access_rights/test_from_system_tables.py
+++ b/tests/integration/test_select_access_rights/test_from_system_tables.py
@@ -190,15 +190,3 @@ def test_information_schema():
         )
         == "1\n"
     )
-    assert (
-        node.query(
-            "SELECT count() FROM information_schema.TABLES WHERE table_name='TABLES'"
-        )
-        == "2\n"
-    )
-    assert (
-        node.query(
-            "SELECT count() FROM INFORMATION_SCHEMA.tables WHERE table_name='tables'"
-        )
-        == "3\n"
-    )
diff --git a/tests/queries/0_stateless/01161_information_schema.reference b/tests/queries/0_stateless/01161_information_schema.reference
index 4ec33a70be08..32ad3f16abc9 100644
--- a/tests/queries/0_stateless/01161_information_schema.reference
+++ b/tests/queries/0_stateless/01161_information_schema.reference
@@ -33,3 +33,5 @@ default	default	v	default	v	f	2		0	Float64	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\N	\
 		tmp		tmp	d	1		0	Date	\N	\N	\N	\N	\N	0	\N	\N	\N	\N	\N	\N	\N	\N	\N		Date
 		tmp		tmp	dt	2		0	DateTime	\N	\N	\N	\N	\N	0	\N	\N	\N	\N	\N	\N	\N	\N	\N		DateTime
 		tmp		tmp	dtms	3		0	DateTime64(3)	\N	\N	\N	\N	\N	3	\N	\N	\N	\N	\N	\N	\N	\N	\N		DateTime64(3)
+1
+1
diff --git a/tests/queries/0_stateless/01161_information_schema.sql b/tests/queries/0_stateless/01161_information_schema.sql
index ed77ef1c1c24..68a3b011ced0 100644
--- a/tests/queries/0_stateless/01161_information_schema.sql
+++ b/tests/queries/0_stateless/01161_information_schema.sql
@@ -1,20 +1,31 @@
-show tables from information_schema;
+SHOW TABLES FROM information_schema;
 SHOW TABLES FROM INFORMATION_SCHEMA;
 
-create table t (n UInt64, f Float32, s String, fs FixedString(42), d Decimal(9, 6)) engine=Memory;
-create view v (n Nullable(Int32), f Float64) as select n, f from t;
-create materialized view mv engine=Null as select * from system.one;
-create temporary table tmp (d Date, dt DateTime, dtms DateTime64(3));
+DROP TABLE IF EXISTS t;
+DROP VIEW IF EXISTS v;
+DROP VIEW IF EXISTS mv;
+DROP TABLE IF EXISTS tmp;
+
+CREATE TABLE t (n UInt64, f Float32, s String, fs FixedString(42), d Decimal(9, 6)) ENGINE=Memory;
+CREATE VIEW v (n Nullable(Int32), f Float64) AS SELECT n, f FROM t;
+CREATE MATERIALIZED VIEW mv ENGINE=Null AS SELECT * FROM system.one;
+CREATE TEMPORARY TABLE tmp (d Date, dt DateTime, dtms DateTime64(3));
 
 
 -- FIXME #28687
-select * from information_schema.schemata where schema_name ilike 'information_schema';
+SELECT * FROM information_schema.schemata WHERE schema_name ilike 'information_schema';
 -- SELECT * FROM INFORMATION_SCHEMA.TABLES WHERE (TABLE_SCHEMA=currentDatabase() OR TABLE_SCHEMA='') AND TABLE_NAME NOT LIKE '%inner%';
 SELECT * FROM INFORMATION_SCHEMA.TABLES WHERE (table_schema=currentDatabase() OR table_schema='') AND table_name NOT LIKE '%inner%';
-select * from information_schema.views where table_schema=currentDatabase();
+SELECT * FROM information_schema.views WHERE table_schema=currentDatabase();
 -- SELECT * FROM INFORMATION_SCHEMA.COLUMNS WHERE (TABLE_SCHEMA=currentDatabase() OR TABLE_SCHEMA='') AND TABLE_NAME NOT LIKE '%inner%';
 SELECT * FROM INFORMATION_SCHEMA.COLUMNS WHERE (table_schema=currentDatabase() OR table_schema='') AND table_name NOT LIKE '%inner%';
 
-drop table t;
-drop view v;
+-- mixed upper/lowercase schema and table name:
+SELECT count() FROM information_schema.TABLES WHERE table_schema=currentDatabase() AND table_name = 't';
+SELECT count() FROM INFORMATION_SCHEMA.tables WHERE table_schema=currentDatabase() AND table_name = 't';
+SELECT count() FROM INFORMATION_schema.tables WHERE table_schema=currentDatabase() AND table_name = 't'; -- { serverError UNKNOWN_DATABASE }
+SELECT count() FROM information_schema.taBLES WHERE table_schema=currentDatabase() AND table_name = 't'; -- { serverError UNKNOWN_TABLE }
+
 drop view mv;
+drop view v;
+drop table t;