Method using

django/db/models/query.py:1971–1975

Select which database this QuerySet should execute against.

(self, alias)

        return clone

    def using(self, alias):
        """Select which database this QuerySet should execute against."""
        clone = self._chain()
        clone._db = alias
        return clone

    def fetch_mode(self, fetch_mode):
        """Set the fetch mode for the QuerySet."""