Count null values in a single column using hiveql

Question

I would like to count the number of null values in a single column.

With:

select count(1)
from usedcars3
where model is NULL

I managed to get count of the null values in a single column in SQL however when I ran:

select count(1) 
from usedcars3 
where model is null; 

in hive,

it gave me back 0 as the result.

I've searched around and haven't found anything as to why.

Any help/insight would be greatly appreciated.

Answer 1

select count(*) from usedcars3 where model is null;