USE tpch1;
drop table if exists bug3025;
create table bug3025(value integer(5)) engine=Columnstore;
insert into bug3025 values (1), (1001), (24), (2123), (null), (123), (888), (8421), (231), (-100), (null);
select value, IF(value<=1000,'<=1000', '>1000') 
from bug3025 
group by value, IF(value<=1000,'<=1000', '>1000') 
order by ISNULL(IF(value<=1000,'<=1000', '>1000')), value;
value	IF(value<=1000,'<=1000', '>1000')
NULL	>1000
-100	<=1000
1	<=1000
24	<=1000
123	<=1000
231	<=1000
888	<=1000
1001	>1000
2123	>1000
8421	>1000
select IF(value<=1000,'<=1000', '>1000') 
from bug3025 
group by IF(value<=1000,'<=1000', '>1000'), value 
order by ISNULL(IF(value<=1000,'<=1000', '>1000')), value;
IF(value<=1000,'<=1000', '>1000')
>1000
<=1000
<=1000
<=1000
<=1000
<=1000
<=1000
>1000
>1000
>1000
select IF(value<=1000,'<=1000', '>1000') from bug3025 group by
IF(value<=1000,'<=1000', '>1000') order by IF(value<=1000,'<=1000', '>1000');
IF(value<=1000,'<=1000', '>1000')
<=1000
>1000
select IF(value<=1000,'<=1000', '>1000') a, isnull(IF(value<=1000,'<=1000',
'>1000')) b from bug3025 group by 1,2 order by 2,1;
a	b
<=1000	0
>1000	0
select * from (select count(*) cnt , if((if(not isnull(value),"notNull","null")
like 'null'),null,if(value<1000,"<1000",">=1000")) a from bug3025 group by a, value
order by not isnull(a),2 asc) b
order by 1, 2;
cnt	a
1	<1000
1	<1000
1	<1000
1	<1000
1	<1000
1	<1000
1	>=1000
1	>=1000
1	>=1000
2	NULL
select IF(value<=1000,'<=1000', '>1000') a, isnull(IF(value<=1000,'<=1000', '>1000')) b from bug3025 group by 1,2 order by 2,1;
a	b
<=1000	0
>1000	0
drop table if exists bug3025;