diff -U3 /tmp/cirrus-ci-build/src/test/regress/expected/inherit.out /tmp/cirrus-ci-build/build/testrun/pg_upgrade/002_pg_upgrade/data/results/inherit.out
--- /tmp/cirrus-ci-build/src/test/regress/expected/inherit.out	2024-08-31 04:04:32.072554000 +0000
+++ /tmp/cirrus-ci-build/build/testrun/pg_upgrade/002_pg_upgrade/data/results/inherit.out	2024-08-31 04:06:30.001035000 +0000
@@ -536,9 +536,11 @@
 
 -- Confirm PRIMARY KEY adds NOT NULL constraint to child table
 CREATE TEMP TABLE z (b TEXT, PRIMARY KEY(aa, b)) inherits (a);
+ERROR:  column "ÿÿÿÿÿÿÿÿc" of relation "z" does not exist
 INSERT INTO z VALUES (NULL, 'text'); -- should fail
-ERROR:  null value in column "aa" of relation "z" violates not-null constraint
-DETAIL:  Failing row contains (null, text).
+ERROR:  relation "z" does not exist
+LINE 1: INSERT INTO z VALUES (NULL, 'text');
+                    ^
 -- Check inherited UPDATE with first child excluded
 create table some_tab (f1 int, f2 int, f3 int, check (f1 < 10) no inherit);
 create table some_tab_child () inherits(some_tab);