Reorder connection markers in loadbalance tests

Commit 7f5b198 introduced TAP tests that use string literals to mark
the presence of a query in server logs.  Reorder the markers to make
sure they are used in alphabetical order for easier debugging.

Author: Gurjeet Singh <gurjeet@singh.im>
Reviewed-by: Jelte Fennema <postgres@jeltef.nl>
Discussion: https://postgr.es/m/CABwTF4WcYAENqyUQS2crAYfDuJ497v82ty2-MirjaC+zz9e8nQ@mail.gmail.com

Author: danielgustafsson

src/interfaces/libpq/t/003_load_balance_host_list.pl

@@ -36,21 +36,21 @@
 # load_balance_hosts=disable should always choose the first one.
 $node1->connect_ok("host=$hostlist port=$portlist load_balance_hosts=disable",
 	"load_balance_hosts=disable connects to the first node",
-	sql => "SELECT 'connect2'",
-	log_like => [qr/statement: SELECT 'connect2'/]);
+	sql => "SELECT 'connect1'",
+	log_like => [qr/statement: SELECT 'connect1'/]);
 
 # Statistically the following loop with load_balance_hosts=random will almost
 # certainly connect at least once to each of the nodes. The chance of that not
 # happening is so small that it's negligible: (2/3)^50 = 1.56832855e-9
 foreach my $i (1 .. 50) {
 	$node1->connect_ok("host=$hostlist port=$portlist load_balance_hosts=random",
 		"repeated connections with random load balancing",
-		sql => "SELECT 'connect1'");
+		sql => "SELECT 'connect2'");
 }
 
-my $node1_occurences = () = $node1->log_content() =~ /statement: SELECT 'connect1'/g;
-my $node2_occurences = () = $node2->log_content() =~ /statement: SELECT 'connect1'/g;
-my $node3_occurences = () = $node3->log_content() =~ /statement: SELECT 'connect1'/g;
+my $node1_occurences = () = $node1->log_content() =~ /statement: SELECT 'connect2'/g;
+my $node2_occurences = () = $node2->log_content() =~ /statement: SELECT 'connect2'/g;
+my $node3_occurences = () = $node3->log_content() =~ /statement: SELECT 'connect2'/g;
 
 my $total_occurences = $node1_occurences + $node2_occurences + $node3_occurences;
 

src/interfaces/libpq/t/004_load_balance_dns.pl

@@ -78,8 +78,8 @@
 # load_balance_hosts=disable should always choose the first one.
 $node1->connect_ok("host=pg-loadbalancetest port=$port load_balance_hosts=disable",
 	"load_balance_hosts=disable connects to the first node",
-	sql => "SELECT 'connect2'",
-	log_like => [qr/statement: SELECT 'connect2'/]);
+	sql => "SELECT 'connect1'",
+	log_like => [qr/statement: SELECT 'connect1'/]);
 
 
 # Statistically the following loop with load_balance_hosts=random will almost
@@ -88,12 +88,12 @@
 foreach my $i (1 .. 50) {
 	$node1->connect_ok("host=pg-loadbalancetest port=$port load_balance_hosts=random",
 		"repeated connections with random load balancing",
-		sql => "SELECT 'connect1'");
+		sql => "SELECT 'connect2'");
 }
 
-my $node1_occurences = () = $node1->log_content() =~ /statement: SELECT 'connect1'/g;
-my $node2_occurences = () = $node2->log_content() =~ /statement: SELECT 'connect1'/g;
-my $node3_occurences = () = $node3->log_content() =~ /statement: SELECT 'connect1'/g;
+my $node1_occurences = () = $node1->log_content() =~ /statement: SELECT 'connect2'/g;
+my $node2_occurences = () = $node2->log_content() =~ /statement: SELECT 'connect2'/g;
+my $node3_occurences = () = $node3->log_content() =~ /statement: SELECT 'connect2'/g;
 
 my $total_occurences = $node1_occurences + $node2_occurences + $node3_occurences;