diff -r 14cd7137a3a8 -r 8f5c556120a5 src/server/plugins/postgresql/pgtest.c
--- a/src/server/plugins/postgresql/pgtest.c	Mon Apr 18 17:31:45 2022 +0200
+++ b/src/server/plugins/postgresql/pgtest.c	Tue Apr 19 12:32:22 2022 +0200
@@ -274,8 +274,12 @@
     f1 = vfs_open(vfs, "/test_unlink1", O_RDONLY);
     UCX_TEST_ASSERT(f1 == NULL, "test file not deleted");
     
-    //int pgfd = lo_open(test_connection, oid, INV_READ);
-    //UCX_TEST_ASSERT(pgfd < 0, "large object not deleted");
+    PGresult *result = PQexec(test_connection, "savepoint sp;");
+    PQclear(result);
+    int pgfd = lo_open(test_connection, oid, INV_READ);
+    UCX_TEST_ASSERT(pgfd < 0, "large object not deleted");
+    result = PQexec(test_connection, "rollback to savepoint sp;");
+    PQclear(result);
     
     r = vfs_unlink(vfs, "/test_unlink1");
     UCX_TEST_ASSERT(r, "unlink should fail");