diff -U3 /tmp/cirrus-ci-build/src/test/isolation/expected/indexscan-check-notnull.out /tmp/cirrus-ci-build/src/test/isolation/output_iso/results/indexscan-check-notnull.out
--- /tmp/cirrus-ci-build/src/test/isolation/expected/indexscan-check-notnull.out	2025-05-09 07:34:55.576713770 +0000
+++ /tmp/cirrus-ci-build/src/test/isolation/output_iso/results/indexscan-check-notnull.out	2025-05-09 07:39:31.353236172 +0000
@@ -6,7 +6,6 @@
 step m1: DELETE FROM t;
 step hj: ALTER TABLE t ADD CONSTRAINT t1_nn NOT NULL a; <waiting ...>
 step c1: COMMIT;
-s2: NOTICE:  all not-null constraints on relation "t" are validated by index scan
 step hj: <... completed>
 step c3: COMMIT;
 step sn: SELECT conname, conrelid::regclass, contype, convalidated
@@ -24,7 +23,6 @@
 step m1: DELETE FROM t;
 step hj: ALTER TABLE t ADD CONSTRAINT t1_nn NOT NULL a; <waiting ...>
 step c1: COMMIT;
-s2: NOTICE:  all not-null constraints on relation "t" are validated by index scan
 step hj: <... completed>
 step c3: COMMIT;
 step sn: SELECT conname, conrelid::regclass, contype, convalidated
@@ -42,7 +40,6 @@
 step m1: DELETE FROM t;
 step hj: ALTER TABLE t ADD CONSTRAINT t1_nn NOT NULL a; <waiting ...>
 step c1: COMMIT;
-s2: NOTICE:  all not-null constraints on relation "t" are validated by index scan
 step hj: <... completed>
 step c3: COMMIT;
 step sn: SELECT conname, conrelid::regclass, contype, convalidated
@@ -69,7 +66,6 @@
 step m1: DELETE FROM t; <waiting ...>
 step c2: ROLLBACK;
 step m1: <... completed>
-s1: NOTICE:  all not-null constraints on relation "t" are validated by index scan
 step s1: ALTER TABLE t ADD CONSTRAINT t1_nn NOT NULL a;
 step sn: SELECT conname, conrelid::regclass, contype, convalidated
            FROM pg_constraint WHERE conname = 't1_nn';
@@ -87,7 +83,6 @@
 step m1: DELETE FROM t;
 step d1: DROP INDEX t_ab_idx; <waiting ...>
 step s0: savepoint s0;
-s1: NOTICE:  all not-null constraints on relation "t" are validated by index scan
 step s1: ALTER TABLE t ADD CONSTRAINT t1_nn NOT NULL a;
 step c1: COMMIT;
 step d1: <... completed>