executeQuery(connection,"set search_path to five_to_six_upgrade;");
PGresult*result=executeQuery(connection,"select pg_database.oid, relfilenode from pg_class, pg_database where relname = 'users' and datname = current_database();");
PGresult*result=executeQuery(connection,"select pg_database.oid, relfilenode from pg_class, pg_database where relname = 'users' and datname = current_database();");