Classe « Query »

Méthode sqlalchemy.orm.Query.subquery

Signature de la méthode subquery

def subquery(self, name=None, with_labels=False, reduce_columns=False) 

Description

subquery.__doc__

Return the full SELECT statement represented by
        this :class:`_query.Query`, embedded within an
        :class:`_expression.Alias`.

        Eager JOIN generation within the query is disabled.

        :param name: string name to be assigned as the alias;
            this is passed through to :meth:`_expression.FromClause.alias`.
            If ``None``, a name will be deterministically generated
            at compile time.

        :param with_labels: if True, :meth:`.with_labels` will be called
         on the :class:`_query.Query` first to apply table-qualified labels
         to all columns.

        :param reduce_columns: if True,
         :meth:`_expression.Select.reduce_columns` will
         be called on the resulting :func:`_expression.select` construct,
         to remove same-named columns where one also refers to the other
         via foreign key or WHERE clause equivalence.