Module « sqlalchemy »

Fonction outerjoin - module sqlalchemy

Signature de la fonction outerjoin

def outerjoin(left, right, onclause=None, full=False) 

Description

outerjoin.__doc__

Return an ``OUTER JOIN`` clause element.

        The returned object is an instance of :class:`_expression.Join`.

        Similar functionality is also available via the
        :meth:`_expression.FromClause.outerjoin` method on any
        :class:`_expression.FromClause`.

        :param left: The left side of the join.

        :param right: The right side of the join.

        :param onclause:  Optional criterion for the ``ON`` clause, is
          derived from foreign key relationships established between
          left and right otherwise.

        To chain joins together, use the :meth:`_expression.FromClause.join`
        or
        :meth:`_expression.FromClause.outerjoin` methods on the resulting
        :class:`_expression.Join` object.