function getPreparedXacts($database = null) { if ($database === null) { $sql = "SELECT * FROM pg_prepared_xacts"; } else { $this->clean($database); $sql = "SELECT transaction, gid, prepared, owner FROM pg_prepared_xacts\n\t\t\t\tWHERE database='{$database}' ORDER BY owner"; } return $this->selectSet($sql); }