USE tpch1;
DROP TABLE IF EXISTS test.mcol830a;
DROP TABLE IF EXISTS test.mcol830b;
CREATE TABLE test.mcol830a (
`c1` int(11) DEFAULT NULL,
`c2` varchar(64) DEFAULT NULL
) ENGINE=Columnstore DEFAULT CHARSET=utf8;
CREATE TABLE test.mcol830b (
`c1` int(11) DEFAULT NULL,
`c2` varchar(64) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=utf8;
insert into test.mcol830a values(1, 'cs测试');
insert into test.mcol830b values(2, 'myisam测试');
select * from test.mcol830a union select * from test.mcol830b order by c1 desc;
c1	c2
2	myisam测试
1	cs测试
DROP TABLE test.mcol830a;
DROP TABLE test.mcol830b;