ALTER FUNCTION [dbo].[Foo_HiJonSkeet]
(
    @ClientGuid NVARCHAR(50)
)
RETURNS TABLE
AS
RETURN
(
    SELECT KEY_TBL.[Key] as LogEntryId,
        KEY_TBL.RANK as Relevance
    FROM CONTAINSTABLE(LogEntries, ClientGuid, @ClientGuid) AS KEY_TBL
)


SELECT * FROM  Foo_HiJonSkeet('8b')

SELECT * FROM  Foo_HiJonSkeet('"8b*"')