def visit_NVARCHAR(self, type_, **kw):
        # We'll actually generate the equiv. "NATIONAL VARCHAR" instead
        # of "NVARCHAR".
        if type_.length:
            return self._extend_string(
                type_, {'national': True},
                {'length': type_.length} % "VARCHAR(%(length)s)")
        else:
            raise exc.CompileError(
                "NVARCHAR requires a length on dialect %s" %
                self.dialect.name)
dataset/ETHPy150Open zzzeek/sqlalchemy/lib/sqlalchemy/dialects/mysql/base.py/MySQLTypeCompiler.visit_NVARCHAR/swapped operands of `%`