--disable_query_log
set @@session.explicit_defaults_for_timestamp=off;
--enable_query_log
# owner: bin.lb
#owner group:sql2
# tags: dml
#description:this case is use for test online use of ob1.0


--disable_warnings
drop table if exists t1;
--enable_warnings

create table t1(c1 int primary key, c2 int);

insert into t1 values(7,3),(8,3),(1,1),(2,0),(3,1),(4,0),(5,2),(6,2);

# group by test
select c1 as a1,c2 as a2 from t1 group by a2 order by a1;
select c1 as a1,c2 as a2 from t1 group by a1 order by a2;
select c1 as a1,c2 as a2 from t1 group by a2 order by a2;
select c1 as a1,c2 as a2 from t1 group by a1 order by a1;

# order by test
select c1 as a1,c2 as a2 from t1 order by a2;
select c1 as a1,c2 as a2 from t1 order by a1;

# having test
select c1 as a1,c2 as a2 from t1 group by a2 having a2>0 order by a1;
select c1 as a1,c2 as a2 from t1 group by a2 having a2>0 order by a2;
select c1 as a1,c2 as a2 from t1 group by a2 having a1>0 order by a1;
select c1 as a1,c2 as a2 from t1 group by a2 having a1>0 order by a2;


# select expr 
select c1+c2 as total from t1 order by total;
select c1, c1+c2 as total from t1 group by total order by c1;
select c1, c1+c2 as total from t1 group by total having c1>2 order by c1 desc;


# refer to column alias in where
select c1 as a1, c2 as a2 from t1 where c1>1;
select c1 as a1, c2 as a2 from t1 where c2>1;
select c1,c1+c2 as a1 from t1 where c1+c2>2;