[Dovecot] A questions about consume_results (driver-pgsql.c)

[Rainer Weikusat]

Code
--------------
static void consume_results(struct pgsql_db *db)
{
        do {
                if (!PQconsumeInput(db->pg))
                        break;

                if (PQisBusy(db->pg))
                        return;
        } while (PQgetResult(db->pg) != NULL);

        if (PQstatus(db->pg) == CONNECTION_BAD)
                io_remove_closed(&db->io);
        else
                io_remove(&db->io);

        db->querying = FALSE;
        if (db->queue != NULL && db->connected)
                queue_send_next(db);
}
---------------

This is the only part of the driver-pgsql.c code where a
CONNECTION_BAD does not result in driver_pgsql_close being called.
This will likely happen after the next query (from queue or a new one)
failed because the connection was bad. Is there a reason for this?