USE tpch1;
drop table if exists test;
drop view if exists test_v;
create table test (test1 numeric,test2 varchar(20)) engine=columnstore;
create view test_v as select * from test;
insert into test values (1,'data1');
insert into test values (2,'data2');
insert into test values (3,'data3');
select T.test1,T.test2 from test_v T;
test1	test2
1	data1
2	data2
3	data3
select T.test1,T.test2 from test_v t;
test1	test2
1	data1
2	data2
3	data3
select T.test1 from (select * from test_v)T;
test1
1
2
3
drop table test;
drop view test_v;