Is there any way of writing an HQL query which achieves the equivalent of this in SQL:

SELECT CASE WHEN EXISTS (SELECT FROM Foo WHERE <clause>) THEN 1 ELSE 0 END


I can work around this for the moment by using:

select count(f) from Foo f where <clause>

...and checking if this result is >0, but I'm not interested in knowing the actual number of matching rows, and the RDBMS could get better performance out of my preferred approach - if I could express it in HQL.