diff -U3 /home/postgres/postgres/src/test/regress/expected/copy2.out /home/postgres/postgres/build/testrun/pg_upgrade/002_pg_upgrade/data/results/copy2.out
--- /home/postgres/postgres/src/test/regress/expected/copy2.out	Wed Apr 29 13:12:30 2026
+++ /home/postgres/postgres/build/testrun/pg_upgrade/002_pg_upgrade/data/results/copy2.out	Wed Apr 29 13:16:01 2026
@@ -969,13 +969,13 @@
 ALTER TABLE err_tbl ADD CONSTRAINT cc2 CHECK(lineno > 2);
 COPY save_error FROM STDIN WITH (DELIMITER ',', ON_ERROR TABLE, ERROR_TABLE err_tbl);
 ERROR:  new row for relation "err_tbl" violates check constraint "cc2"
-DETAIL:  Failing row contains (10, 16848, STDIN, 1, a,b,3,4, a, a, invalid input syntax for type integer: "a", null, 22P02).
+DETAIL:  Failing row contains (10, 43651, STDIN, 1, a,b,3,4, a, a, invalid input syntax for type integer: "a", null, 22P02).
 CONTEXT:  COPY save_error, line 1, column a: "a"
 ALTER TABLE err_tbl DROP CONSTRAINT cc2;
 ALTER TABLE err_tbl ADD CONSTRAINT cc3 NOT NULL err_detail;
 COPY save_error FROM STDIN WITH (DELIMITER ',', ON_ERROR TABLE, ERROR_TABLE err_tbl);
 ERROR:  null value in column "err_detail" of relation "err_tbl" violates not-null constraint
-DETAIL:  Failing row contains (10, 16848, STDIN, 1, a,b,3,4, a, a, invalid input syntax for type integer: "a", null, 22P02).
+DETAIL:  Failing row contains (10, 43651, STDIN, 1, a,b,3,4, a, a, invalid input syntax for type integer: "a", null, 22P02).
 CONTEXT:  COPY save_error, line 1, column a: "a"
 ALTER TABLE err_tbl DROP CONSTRAINT cc3;
 BEGIN;