diff --git a/src/test/regress/expected/gpdtm_plpgsql.out b/src/test/regress/expected/gpdtm_plpgsql.out
index 79529777015..9092fb8c830 100644
--- a/src/test/regress/expected/gpdtm_plpgsql.out
+++ b/src/test/regress/expected/gpdtm_plpgsql.out
@@ -536,18 +536,30 @@ CREATE TABLE test_parse_arr (a bigserial, b int[]);
 NOTICE:  Table doesn't have 'DISTRIBUTED BY' clause -- Using column named 'a' as the Cloudberry Database data distribution key for this table.
 HINT:  The 'DISTRIBUTED BY' clause determines the distribution of data. Make sure column(s) chosen are the optimal data distribution key to minimize skew.
 INSERT INTO test_parse_arr (b)
-	SELECT parse_arr(x) FROM 
-				(    
-				  SELECT '(1, 2, 3)' AS x 
-				  UNION ALL
-				  SELECT NULL 
-				) AS q;
-SELECT * FROM test_parse_arr ORDER BY a;
- a |     b     
----+-----------
- 1 | {{1,2,3}}
- 2 | 
-(2 rows)
+        SELECT parse_arr(x) FROM
+                                (
+                                  SELECT '(1, 2, 3)' AS x
+                                  UNION ALL
+                                  SELECT NULL AS x
+                                  UNION ALL
+                                  SELECT '(4, 5, 6)' AS x
+                                  ORDER BY x
+                                ) AS q;
+SELECT a FROM test_parse_arr ORDER BY a;
+ a 
+---
+ 1
+ 2
+ 3
+(3 rows)
+
+SELECT b FROM test_parse_arr ORDER BY b;
+     b     
+-----------
+ {{1,2,3}}
+ {{4,5,6}}
+ 
+(3 rows)
 
 --
 -- Test if sequence server information outlives a plpgsql exception and corresponding subtransaction rollback (MPP-25193)
diff --git a/src/test/regress/sql/gpdtm_plpgsql.sql b/src/test/regress/sql/gpdtm_plpgsql.sql
index 351a4a78d87..4d28db11cfe 100644
--- a/src/test/regress/sql/gpdtm_plpgsql.sql
+++ b/src/test/regress/sql/gpdtm_plpgsql.sql
@@ -302,14 +302,19 @@ $dbvis$ LANGUAGE plpgsql;
 CREATE TABLE test_parse_arr (a bigserial, b int[]);
 
 INSERT INTO test_parse_arr (b)
-	SELECT parse_arr(x) FROM 
-				(    
-				  SELECT '(1, 2, 3)' AS x 
-				  UNION ALL
-				  SELECT NULL 
-				) AS q;
-
-SELECT * FROM test_parse_arr ORDER BY a;
+        SELECT parse_arr(x) FROM
+                                (
+                                  SELECT '(1, 2, 3)' AS x
+                                  UNION ALL
+                                  SELECT NULL AS x
+                                  UNION ALL
+                                  SELECT '(4, 5, 6)' AS x
+                                  ORDER BY x
+                                ) AS q;
+
+SELECT a FROM test_parse_arr ORDER BY a;
+
+SELECT b FROM test_parse_arr ORDER BY b;
 
 --
 -- Test if sequence server information outlives a plpgsql exception and corresponding subtransaction rollback (MPP-25193)