Is it possible to include a UDF in the field list of an SQL SELECT in such a manner that it is interpreted as a field list? In other words, is there a tighter way of doing the following?

junk = UDF()   && Returns as string such as 'Field1,SUM(Field2) AS Field2'
SELECT Field3,&junk,Field4 FROM xxx GROUP BY 1 INTO CURSOR yyy

Is something like this what is meant by a subquery in the SELECT clause of the SQL SELECT statement? See Visual FoxPro 9.0 Language Reference SELECT - SQL Command - SELECT Clause in VFP9 help: "(Subquery) Subquery specifies a SQL SELECT statement within another SQL SELECT statement and must be enclosed within parentheses (()). "

TIA,
Alex