Different results compared to innodb with union all and subselect with null in select and impossible where condition

Columnstore throws rows with union all and subselect with null in select and impossible where condition

To reproduce:

drop table if exists t1col;

drop table if exists t1inno;

create table t1col (id int) engine=columnstore;

create table t1inno (id int) engine=innodb;

select * from

(

Select ID

FROM

(

SELECT 1 ID

FROM 

t1col

) V

UNION ALL

SELECT ID

FROM

(

SELECT NULL ID WHERE 1=0

) V

) U;

select * from

(

Select ID

FROM

(

SELECT 1 ID

FROM 

t1inno

) V

UNION ALL

SELECT ID

FROM

(

SELECT NULL ID WHERE 1=0

) V

) U;

Result with innodb table:

Empty set (0.001 sec)

Result with Columnstore table:

------

------

------
1 row in set (0.043 sec)

Columnstore throws the same result like innodb, if

• change "where 1= 0" to "where 1=1" (or without where condition)
• change SELECT NULL ID to SELECT 1 ID
• Remove the outer wrapper "select * from (...."