Filter for computers using Primary User?

Hi,

I'm trying to create a computer filter where the Primary User ID contains "TRP" from the code below, but with no success... What's wrong?

 ----
SELECT
   [Guid],
   [Name]
FROM
   [vComputer] 
WHERE
  [vComputer].[Primary User] like '%TRP'
 ----

The error message is this:

This DataSource is not in a runnable state.