diff --git a/src/gausskernel/optimizer/plan/createplan.cpp b/src/gausskernel/optimizer/plan/createplan.cpp
index d4b079f07781799efe284c9b67aef5945c285595..ba6a1dc229b85d855ecfecb9865b6bc1c0b7d274 100755
--- a/src/gausskernel/optimizer/plan/createplan.cpp
+++ b/src/gausskernel/optimizer/plan/createplan.cpp
@@ -677,6 +677,11 @@ static Plan* create_scan_plan(PlannerInfo* root, Path* best_path)
         tlist = build_path_tlist(root, best_path);
     }
 
+    if (u_sess->opt_cxt.is_under_append_plan && tlist == NIL) {
+        Const *c = makeConst(INT4OID, -1, InvalidOid, -2, (Datum)0, true, false);
+        tlist = lappend(tlist, makeTargetEntry((Expr*)c, 1, NULL, true));
+    }
+
     /*
      * Extract the relevant restriction clauses from the parent relation. The
      * executor must apply all these restrictions during the scan, except for
diff --git a/src/test/regress/expected/gpi_index_only.out b/src/test/regress/expected/gpi_index_only.out
index 1c4416d1bcb8dfeee70d9dcb820014594b3625e0..cd4cb24b112b6928349621afa8cbec713407307f 100644
--- a/src/test/regress/expected/gpi_index_only.out
+++ b/src/test/regress/expected/gpi_index_only.out
@@ -655,3 +655,64 @@ SELECT distinct(j),k
 drop table if exists gpi_J1_TBL;
 drop table if exists gpi_J2_TBL;
 set client_min_messages=notice;
+-- test gpi index_scan_only with none targetlist
+drop table if exists indexscan_pseudo_tlist cascade;
+NOTICE:  table "indexscan_pseudo_tlist" does not exist, skipping
+CREATE TABLE indexscan_pseudo_tlist (
+  id integer,
+  k integer,
+  t integer
+)
+partition by range (id)
+(
+  partition indexscan_pseudo_tlist_p0 values less than (10000),
+  partition indexscan_pseudo_tlist_p1 values less than (20000),
+  partition indexscan_pseudo_tlist_p2 values less than (30000),
+  partition indexscan_pseudo_tlist_p3 values less than (maxvalue)
+);
+create index on indexscan_pseudo_tlist(id);
+insert into indexscan_pseudo_tlist values(1);
+reset enable_seqscan;
+select count(*) from (select * from indexscan_pseudo_tlist union all select * from indexscan_pseudo_tlist) where now() is not null;
+ count 
+-------
+     2
+(1 row)
+
+set enable_seqscan=off;
+explain(costs off) select count(*) from (select * from indexscan_pseudo_tlist union all select * from indexscan_pseudo_tlist) where now() is not null;
+                                                   QUERY PLAN                                                   
+----------------------------------------------------------------------------------------------------------------
+ Aggregate
+   ->  Result
+         One-Time Filter: (now() IS NOT NULL)
+         ->  Append
+               ->  Result
+                     One-Time Filter: (now() IS NOT NULL)
+                     ->  Index Only Scan using indexscan_pseudo_tlist_id_tableoid_idx on indexscan_pseudo_tlist
+               ->  Result
+                     One-Time Filter: (now() IS NOT NULL)
+                     ->  Index Only Scan using indexscan_pseudo_tlist_id_tableoid_idx on indexscan_pseudo_tlist
+(10 rows)
+
+select count(*) from (select * from indexscan_pseudo_tlist union all select * from indexscan_pseudo_tlist) where now() is not null;
+ count 
+-------
+     2
+(1 row)
+
+select count(*) from (select * from indexscan_pseudo_tlist union all select * from indexscan_pseudo_tlist) where now() is not null and id is not null;
+ count 
+-------
+     2
+(1 row)
+
+prepare test_index_pseudo as select count(*) from (select * from indexscan_pseudo_tlist union all select * from indexscan_pseudo_tlist) where id in (1) and id=$1;
+execute test_index_pseudo(1);
+ count 
+-------
+     2
+(1 row)
+
+reset enable_seqscan;
+drop table if exists indexscan_pseudo_tlist cascade;
diff --git a/src/test/regress/sql/gpi_index_only.sql b/src/test/regress/sql/gpi_index_only.sql
index 83e5be13294353cef4a66f485399e73e991547e6..4af048a1ddb288b3f3cb901494783a6139186202 100644
--- a/src/test/regress/sql/gpi_index_only.sql
+++ b/src/test/regress/sql/gpi_index_only.sql
@@ -237,3 +237,34 @@ SELECT distinct(j),k
 drop table if exists gpi_J1_TBL;
 drop table if exists gpi_J2_TBL;
 set client_min_messages=notice;
+
+-- test gpi index_scan_only with none targetlist
+drop table if exists indexscan_pseudo_tlist cascade;
+CREATE TABLE indexscan_pseudo_tlist (
+  id integer,
+  k integer,
+  t integer
+)
+partition by range (id)
+(
+  partition indexscan_pseudo_tlist_p0 values less than (10000),
+  partition indexscan_pseudo_tlist_p1 values less than (20000),
+  partition indexscan_pseudo_tlist_p2 values less than (30000),
+  partition indexscan_pseudo_tlist_p3 values less than (maxvalue)
+);
+create index on indexscan_pseudo_tlist(id);
+insert into indexscan_pseudo_tlist values(1);
+
+reset enable_seqscan;
+select count(*) from (select * from indexscan_pseudo_tlist union all select * from indexscan_pseudo_tlist) where now() is not null;
+
+set enable_seqscan=off;
+explain(costs off) select count(*) from (select * from indexscan_pseudo_tlist union all select * from indexscan_pseudo_tlist) where now() is not null;
+select count(*) from (select * from indexscan_pseudo_tlist union all select * from indexscan_pseudo_tlist) where now() is not null;
+select count(*) from (select * from indexscan_pseudo_tlist union all select * from indexscan_pseudo_tlist) where now() is not null and id is not null;
+
+prepare test_index_pseudo as select count(*) from (select * from indexscan_pseudo_tlist union all select * from indexscan_pseudo_tlist) where id in (1) and id=$1;
+execute test_index_pseudo(1);
+
+reset enable_seqscan;
+drop table if exists indexscan_pseudo_tlist cascade;