diff --git a/src/test/modules/dummy_index_am/expected/reloptions.out b/src/test/modules/dummy_index_am/expected/reloptions.out
index c19e79a7c4d..85b6b440293 100644
--- a/src/test/modules/dummy_index_am/expected/reloptions.out
+++ b/src/test/modules/dummy_index_am/expected/reloptions.out
@@ -1,6 +1,8 @@
 -- Tests for relation options
 CREATE EXTENSION dummy_index_am;
 CREATE TABLE dummy_test_tab (i int4);
+-- Silence validation checks for strings
+SET client_min_messages TO 'warning';
 -- Test with default values.
 CREATE INDEX dummy_test_idx ON dummy_test_tab
   USING dummy_index_am (i);
@@ -11,6 +13,8 @@ SELECT unnest(reloptions) FROM pg_class WHERE relname = 'dummy_test_idx';
 
 DROP INDEX dummy_test_idx;
 -- Test with full set of options.
+-- Allow validation checks for strings, just for the index creation
+SET client_min_messages TO 'notice';
 CREATE INDEX dummy_test_idx ON dummy_test_tab
   USING dummy_index_am (i) WITH (
   option_bool = false,
@@ -20,6 +24,8 @@ CREATE INDEX dummy_test_idx ON dummy_test_tab
   option_string_null = 'val');
 NOTICE:  new option value for string parameter null
 NOTICE:  new option value for string parameter val
+-- Silence again validation checks for strings until the end of the test.
+SET client_min_messages TO 'warning';
 SELECT unnest(reloptions) FROM pg_class WHERE relname = 'dummy_test_idx';
          unnest         
 ------------------------
@@ -30,8 +36,6 @@ SELECT unnest(reloptions) FROM pg_class WHERE relname = 'dummy_test_idx';
  option_string_null=val
 (5 rows)
 
--- Silence validation checks for strings
-SET client_min_messages TO 'warning';
 -- ALTER INDEX .. SET
 ALTER INDEX dummy_test_idx SET (option_int = 10);
 ALTER INDEX dummy_test_idx SET (option_bool = true);
diff --git a/src/test/modules/dummy_index_am/sql/reloptions.sql b/src/test/modules/dummy_index_am/sql/reloptions.sql
index 004a1961289..be3457562f1 100644
--- a/src/test/modules/dummy_index_am/sql/reloptions.sql
+++ b/src/test/modules/dummy_index_am/sql/reloptions.sql
@@ -3,6 +3,9 @@ CREATE EXTENSION dummy_index_am;
 
 CREATE TABLE dummy_test_tab (i int4);
 
+-- Silence validation checks for strings
+SET client_min_messages TO 'warning';
+
 -- Test with default values.
 CREATE INDEX dummy_test_idx ON dummy_test_tab
   USING dummy_index_am (i);
@@ -10,6 +13,8 @@ SELECT unnest(reloptions) FROM pg_class WHERE relname = 'dummy_test_idx';
 DROP INDEX dummy_test_idx;
 
 -- Test with full set of options.
+-- Allow validation checks for strings, just for the index creation
+SET client_min_messages TO 'notice';
 CREATE INDEX dummy_test_idx ON dummy_test_tab
   USING dummy_index_am (i) WITH (
   option_bool = false,
@@ -17,10 +22,9 @@ CREATE INDEX dummy_test_idx ON dummy_test_tab
   option_real = 3.1,
   option_string_val = NULL,
   option_string_null = 'val');
-SELECT unnest(reloptions) FROM pg_class WHERE relname = 'dummy_test_idx';
-
--- Silence validation checks for strings
+-- Silence again validation checks for strings until the end of the test.
 SET client_min_messages TO 'warning';
+SELECT unnest(reloptions) FROM pg_class WHERE relname = 'dummy_test_idx';
 
 -- ALTER INDEX .. SET
 ALTER INDEX dummy_test_idx SET (option_int = 10);