@classmethod
def min(cls, item='uid', like={}, isin={}, orderby='', where='', limit='',
    **criteria):
    """return min of item (column) filtered by these criteria
    """
    what = 'min(%s)' % item
    return cls.list(asObjects=False, sql='', like=like, isin=isin, orderby=
        orderby, where=where, limit=limit, what=what, **criteria)[0][what]
