diff --git a/src/backend/commands/tablecmds.c b/src/backend/commands/tablecmds.c
index 932cf549564..535c74feb03 100644
--- a/src/backend/commands/tablecmds.c
+++ b/src/backend/commands/tablecmds.c
@@ -7345,6 +7345,8 @@ ATExecAddColumn(List **wqueue, AlteredTableInfo *tab, Relation rel,
 				if (!missingIsNull)
 				{
 					StoreAttrMissingVal(rel, attribute->attnum, missingval);
+					/* Make the additional catalog change visible */
+					CommandCounterIncrement();
 					has_missing = true;
 				}
 				FreeExecutorState(estate);
diff --git a/src/test/regress/expected/inherit.out b/src/test/regress/expected/inherit.out
index 85240a9b0bb..689f4242a1f 100644
--- a/src/test/regress/expected/inherit.out
+++ b/src/test/regress/expected/inherit.out
@@ -1093,17 +1093,30 @@ CREATE TABLE inhta ();
 CREATE TABLE inhtb () INHERITS (inhta);
 CREATE TABLE inhtc () INHERITS (inhtb);
 CREATE TABLE inhtd () INHERITS (inhta, inhtb, inhtc);
-ALTER TABLE inhta ADD COLUMN i int;
+ALTER TABLE inhta ADD COLUMN i int, ADD COLUMN j bigint DEFAULT 1;
 NOTICE:  merging definition of column "i" for child "inhtd"
 NOTICE:  merging definition of column "i" for child "inhtd"
+NOTICE:  merging definition of column "j" for child "inhtd"
+NOTICE:  merging definition of column "j" for child "inhtd"
 \d+ inhta
                                    Table "public.inhta"
  Column |  Type   | Collation | Nullable | Default | Storage | Stats target | Description 
 --------+---------+-----------+----------+---------+---------+--------------+-------------
  i      | integer |           |          |         | plain   |              | 
+ j      | bigint  |           |          | 1       | plain   |              | 
 Child tables: inhtb,
               inhtd
 
+\d+ inhtd
+                                   Table "public.inhtd"
+ Column |  Type   | Collation | Nullable | Default | Storage | Stats target | Description 
+--------+---------+-----------+----------+---------+---------+--------------+-------------
+ i      | integer |           |          |         | plain   |              | 
+ j      | bigint  |           |          | 1       | plain   |              | 
+Inherits: inhta,
+          inhtb,
+          inhtc
+
 DROP TABLE inhta, inhtb, inhtc, inhtd;
 -- Test for renaming in diamond inheritance
 CREATE TABLE inht2 (x int) INHERITS (inht1);
diff --git a/src/test/regress/sql/inherit.sql b/src/test/regress/sql/inherit.sql
index 51251b0e511..572512cba01 100644
--- a/src/test/regress/sql/inherit.sql
+++ b/src/test/regress/sql/inherit.sql
@@ -377,8 +377,9 @@ CREATE TABLE inhta ();
 CREATE TABLE inhtb () INHERITS (inhta);
 CREATE TABLE inhtc () INHERITS (inhtb);
 CREATE TABLE inhtd () INHERITS (inhta, inhtb, inhtc);
-ALTER TABLE inhta ADD COLUMN i int;
+ALTER TABLE inhta ADD COLUMN i int, ADD COLUMN j bigint DEFAULT 1;
 \d+ inhta
+\d+ inhtd
 DROP TABLE inhta, inhtb, inhtc, inhtd;
 
 -- Test for renaming in diamond inheritance