diff --git a/src/test/regress/expected/alter_role_propagation.out b/src/test/regress/expected/alter_role_propagation.out
index 0e37c2f94..05072ddff 100644
--- a/src/test/regress/expected/alter_role_propagation.out
+++ b/src/test/regress/expected/alter_role_propagation.out
@@ -275,4 +275,22 @@ SELECT run_command_on_workers('SHOW enable_hashjoin');
  (localhost,57638,t,on)
 (2 rows)
 
-DROP SCHEMA alter_role, ",CitUs,.TeeN!?" CASCADE;
+-- check altering search path won't cause public shards being not found
+CREATE TABLE test_search_path(a int);
+SELECT create_distributed_table('test_search_path', 'a');
+ create_distributed_table
+---------------------------------------------------------------------
+
+(1 row)
+
+CREATE SCHEMA test_sp;
+ALTER USER current_user SET search_path TO test_sp;
+SELECT COUNT(*) FROM public.test_search_path;
+ count
+---------------------------------------------------------------------
+     0
+(1 row)
+
+ALTER USER current_user RESET search_path;
+DROP TABLE test_search_path;
+DROP SCHEMA alter_role, ",CitUs,.TeeN!?", test_sp CASCADE;
diff --git a/src/test/regress/sql/alter_role_propagation.sql b/src/test/regress/sql/alter_role_propagation.sql
index 09462a7fd..e42cde447 100644
--- a/src/test/regress/sql/alter_role_propagation.sql
+++ b/src/test/regress/sql/alter_role_propagation.sql
@@ -90,4 +90,13 @@ SELECT run_command_on_workers('SHOW enable_hashjoin');
 ALTER ROLE ALL RESET enable_hashjoin;
 SELECT run_command_on_workers('SHOW enable_hashjoin');
 
-DROP SCHEMA alter_role, ",CitUs,.TeeN!?" CASCADE;
+-- check altering search path won't cause public shards being not found
+CREATE TABLE test_search_path(a int);
+SELECT create_distributed_table('test_search_path', 'a');
+CREATE SCHEMA test_sp;
+ALTER USER current_user SET search_path TO test_sp;
+SELECT COUNT(*) FROM public.test_search_path;
+ALTER USER current_user RESET search_path;
+
+DROP TABLE test_search_path;
+DROP SCHEMA alter_role, ",CitUs,.TeeN!?", test_sp CASCADE;