Platform Analytics - Count Distinct

[Tarbash2]

I am trying to display the count operating systems using a single score data visualization type on a platform analytics dashboard. My data source is the cmdb_ci_server table but when I choose the 'count distinct' as the aggregation, I do not have a way to select 'operating system' anywhere in the menus or sub-menus.

[J Siva]

Hi @Tarbash2 
Count Distinct is used to display unique values. Therefore, applying Count Distinct to the Operating System field does not make sense.
May I know what you are trying to achieve?
Regards,
Siva