src/test/regress/standby_schedule

Hello,

I guess no human or machine ever runs $SUBJECT, because when I tried
it while hunting down users of txid_XXX functions, it failed (see
end).  To run it, you need a primary/standby pair, here 5441/5442, and
then:

PGPORT=5441 psql postgres -f sql/hs_primary_setup.sql
PGPORT=5442 ./pg_regress --use-existing --dbname=postgres --schedule
standby_schedule

Perhaps the output changed in January with commit 2eb34ac3.  Easy to
fix, but I wonder if anyone has a good idea for how to get check-world
to run it (probably via the "recovery" stuff).

diff -U3 /home/tmunro/projects/postgresql/src/test/regress/expected/hs_standby_disallowed.out
/home/tmunro/projects/postgresql/src/test/regress/results/hs_standby_disallowed.out
--- /home/tmunro/projects/postgresql/src/test/regress/expected/hs_standby_disallowed.out
   2020-03-24 09:02:24.835023971 +1300
+++ /home/tmunro/projects/postgresql/src/test/regress/results/hs_standby_disallowed.out
2020-04-03 13:09:24.339672898 +1300
@@ -64,7 +64,7 @@
 (1 row)

 COMMIT PREPARED 'foobar';
-ERROR:  COMMIT PREPARED cannot run inside a transaction block
+ERROR:  cannot execute COMMIT PREPARED during recovery
 ROLLBACK;
 BEGIN;
 SELECT count(*) FROM hs1;
@@ -86,7 +86,7 @@
 (1 row)

 ROLLBACK PREPARED 'foobar';
-ERROR:  ROLLBACK PREPARED cannot run inside a transaction block
+ERROR:  cannot execute ROLLBACK PREPARED during recovery
 ROLLBACK;
 -- Locks
 BEGIN;