Method visit_drop_column_comment

lib/sqlalchemy/sql/compiler.py:7321–7324

(self, drop, **kw)

        )

    def visit_drop_column_comment(self, drop, **kw):
        return "COMMENT ON COLUMN %s IS NULL" % self.preparer.format_column(
            drop.element, use_table=True
        )

    def visit_set_constraint_comment(self, create, **kw):
        raise exc.UnsupportedCompilationError(self, type(create))