Method _set_op

lib/sqlalchemy/orm/query.py:2124–2126

(self, expr_fn: Any, *q: Query[Any])

        return self

    def _set_op(self, expr_fn: Any, *q: Query[Any]) -> Self:
        list_of_queries = (self,) + q
        return self._from_selectable(expr_fn(*(list_of_queries)).subquery())

    def union(self, *q: Query[Any]) -> Self:
        """Produce a UNION of this Query against one or more queries.