husky just reported $SUBJECT: https://buildfarm.postgresql.org/cgi-bin/show_log.pl?nm=husky&dt=2021-06-05%2013%3A42%3A17
and I find I can reproduce that locally: diff -U3 /home/postgres/pgsql/contrib/pg_visibility/expected/pg_visibility.out /home/postgres/pgsql/contrib/pg_visibility/results/pg_visibility.out --- /home/postgres/pgsql/contrib/pg_visibility/expected/pg_visibility.out 2021-01-20 11:12:24.854346717 -0500 +++ /home/postgres/pgsql/contrib/pg_visibility/results/pg_visibility.out 2021-06-06 22:12:07.948890104 -0400 @@ -215,7 +215,8 @@ 0 | f | f 1 | f | f 2 | t | t -(3 rows) + 3 | t | t +(4 rows) select * from pg_check_frozen('copyfreeze'); t_ctid @@ -235,7 +236,8 @@ 0 | t | t 1 | f | f 2 | t | t -(3 rows) + 3 | t | t +(4 rows) select * from pg_check_frozen('copyfreeze'); t_ctid The test cases that are failing date back to January (7db0cd2145f), so I think this is some side-effect of a recent commit, but I have no idea which one. regards, tom lane