commit 1101b263ceb0009b495706e25b7aad569e2f78ce
Author: Anton A. Melnikov <a.melnikov@postgrespro.ru>
Date:   Fri Jun 3 23:50:14 2022 +0300

    Fix test for pg_upgrade from 10x adn earlier versions.

diff --git a/src/bin/pg_upgrade/t/002_pg_upgrade.pl b/src/bin/pg_upgrade/t/002_pg_upgrade.pl
index 2f9b13bf0a..1fd1b6f028 100644
--- a/src/bin/pg_upgrade/t/002_pg_upgrade.pl
+++ b/src/bin/pg_upgrade/t/002_pg_upgrade.pl
@@ -60,7 +60,14 @@ my $oldnode =
 # To increase coverage of non-standard segment size and group access without
 # increasing test runtime, run these tests with a custom setting.
 # --allow-group-access and --wal-segsize have been added in v11.
-$oldnode->init(extra => [ '--wal-segsize', '1', '--allow-group-access' ]);
+my $ver_with_newopts = 11;
+my $oldver = $oldnode->{_pg_version};
+
+$oldnode->init(extra => [ '--wal-segsize', '1', '--allow-group-access' ])
+		if $oldver >= $ver_with_newopts;
+$oldnode->init()
+		if $oldver < $ver_with_newopts;
+
 $oldnode->start;
 
 # The default location of the source code is the root of this directory.
@@ -147,7 +154,10 @@ if (defined($ENV{oldinstall}))
 
 # Initialize a new node for the upgrade.
 my $newnode = PostgreSQL::Test::Cluster->new('new_node');
-$newnode->init(extra => [ '--wal-segsize', '1', '--allow-group-access' ]);
+$newnode->init(extra => [ '--wal-segsize', '1', '--allow-group-access' ])
+		if $oldver >= $ver_with_newopts;
+$newnode->init()
+		if $oldver < $ver_with_newopts;
 my $newbindir = $newnode->config_data('--bindir');
 my $oldbindir = $oldnode->config_data('--bindir');
 
diff --git a/src/bin/pg_upgrade/upgrade_adapt.sql b/src/bin/pg_upgrade/upgrade_adapt.sql
index 27c4c7fd01..d47d2075f5 100644
--- a/src/bin/pg_upgrade/upgrade_adapt.sql
+++ b/src/bin/pg_upgrade/upgrade_adapt.sql
@@ -84,8 +84,8 @@ DO $stmt$
 \if :oldpgversion_le13
 -- Until v10, operators could only be dropped one at a time, so be careful
 -- to stick with one command for each drop here.
-DROP OPERATOR public.#@# (pg_catalog.int8, NONE);
-DROP OPERATOR public.#%# (pg_catalog.int8, NONE);
-DROP OPERATOR public.!=- (pg_catalog.int8, NONE);
-DROP OPERATOR public.#@%# (pg_catalog.int8, NONE);
+DROP OPERATOR IF EXISTS public.#@# (pg_catalog.int8, NONE);
+DROP OPERATOR IF EXISTS public.#%# (pg_catalog.int8, NONE);
+DROP OPERATOR IF EXISTS public.!=- (pg_catalog.int8, NONE);
+DROP OPERATOR IF EXISTS public.#@%# (pg_catalog.int8, NONE);
 \endif