Method populate_existing

lib/sqlalchemy/orm/query.py:1220–1232

Return a :class:`_query.Query` that will expire and refresh all instances as they are loaded, or reused from the current :class:`.Session`. As of SQLAlchemy 1.4, the :meth:`_orm.Query.populate_existing` method is equivalent to using the ``populate_existing`` executio

(self)

    @_generative
    def populate_existing(self) -> Self:
        """Return a :class:`_query.Query`
        that will expire and refresh all instances
        as they are loaded, or reused from the current :class:`.Session`.

        As of SQLAlchemy 1.4, the :meth:`_orm.Query.populate_existing` method
        is equivalent to using the ``populate_existing`` execution option at
        the ORM level. See the section :ref:`orm_queryguide_populate_existing`
        for further background on this option.

        """
        self.load_options += {"_populate_existing": True}
        return self

    @_generative
    def _with_invoke_all_eagers(self, value: bool) -> Self: