diff --git a/src/test/kerberos/t/001_auth.pl b/src/test/kerberos/t/001_auth.pl
index e3eb052..0fc18e3 100644
--- a/src/test/kerberos/t/001_auth.pl
+++ b/src/test/kerberos/t/001_auth.pl
@@ -19,7 +19,7 @@ use Test::More;
 
 if ($ENV{with_gssapi} eq 'yes')
 {
-	plan tests => 12;
+	plan tests => 15;
 }
 else
 {
@@ -195,6 +195,29 @@ sub test_access
 	return;
 }
 
+# As above, but test for an arbitrary query result.
+sub test_query
+{
+	my ($node, $role, $query, $expected, $gssencmode, $test_name) = @_;
+
+	# need to connect over TCP/IP for Kerberos
+	my ($res, $stdoutres, $stderrres) = $node->psql(
+		'postgres',
+		"$query",
+		extra_params => [
+			'-XAtd',
+			$node->connstr('postgres')
+			  . " host=$host hostaddr=$hostaddr $gssencmode",
+			'-U',
+			$role
+		]);
+
+	is($res, 0, $test_name);
+	like($stdoutres, $expected, $test_name);
+	is($stderrres, "", $test_name);
+	return;
+}
+
 unlink($node->data_dir . '/pg_hba.conf');
 $node->append_conf('pg_hba.conf',
 	qq{host all all $hostaddr/32 gss map=mymap});
@@ -231,6 +254,15 @@ test_access(
 	"gssencmode=require",
 	"succeeds with GSS-encrypted access required with host hba");
 
+# Test that we can transport a reasonable amount of data.
+test_query(
+	$node,
+	"test1",
+	'SELECT * FROM generate_series(1, 100000);',
+	qr/^1\n.*\n1024\n.*\n9999\n.*\n100000$/s,
+	"gssencmode=require",
+	"transporting 100K lines works");
+
 unlink($node->data_dir . '/pg_hba.conf');
 $node->append_conf('pg_hba.conf',
 	qq{hostgssenc all all $hostaddr/32 gss map=mymap});