Method is_derived_from

lib/sqlalchemy/sql/dml.py:730–738

Return ``True`` if this :class:`.ReturnsRows` is 'derived' from the given :class:`.FromClause`. Since these are DMLs, we dont want such statements ever being adapted so we return False for derives.

(self, fromclause: Optional[FromClause])

        return self

    def is_derived_from(self, fromclause: Optional[FromClause]) -> bool:
        """Return ``True`` if this :class:`.ReturnsRows` is
        'derived' from the given :class:`.FromClause`.

        Since these are DMLs, we dont want such statements ever being adapted
        so we return False for derives.

        """
        return False

    @_generative
    def returning(