WIQL - Querying description for exact phrase

Question

in TFS I am struggling to produce a query that searches the description field for an exact phrase e.g. "DO 1.2".

The query matches both DO and 1.2 and DO1.2 when I really want to just match the exact string.

Sample of the clause in the query

[System.Description] CONTAINS 'DO 1.2' 

Is it possible to exactly match what I am after?

Answer 1

As far as I know you can't, this because the description field is long-text field and the full text search will be applied on it and you can't use = with long-text field