@testing.only_on('mysql', 'Multi table update')
    def test_defaults_second_table(self):
        users, addresses = self.tables.users, self.tables.addresses

        values = {
            addresses.c.email_address: users.c.name,
            users.c.name: 'ed2'
        }

        ret = testing.db.execute(
            addresses.update().
            values(values).
            where(users.c.id == addresses.c.user_id).
            where(users.c.name == 'ed'))

        eq_(set(ret.prefetch_cols()), set([users.c.some_update]))

        expected = [
            (2, 8, 'ed'),
            (3, 8, 'ed'),
            (4, 9, 'fred@fred.com')]
        self._assert_addresses(addresses, expected)

        expected = [
            (8, 'ed2', 'im the update'),
            (9, 'fred', 'value')]
        self._assert_users(users, expected)
dataset/ETHPy150Open zzzeek/sqlalchemy/test/sql/test_update.py/UpdateFromMultiTableUpdateDefaultsTest.test_defaults_second_table/original