Which is the least expensive aggregate function in the absence of ANY()

Question

I usally use MAX() or MIN() if a DBMS hasn\'t an ANY() aggregate function.

Is there something less expensive in mySQL and MS-SQL?

Answer 1

MySQL does not need an ANY() aggregate.

if I do a

SELECT field1, field2, SUM(field3) FROM table1 
GROUP BY field2

Microsofts T-SQL will complain but

MySQL will just silently execute

SELECT whatever(field1), field2, SUM(.... 

Which of course is way faster than SELECT max(field1), field2, SUM(.... GROUP BY field2

MySQL supports ANY, but SELECT ANY(field1) ... doesn't work because ANY is an operator similar to IN and ALL.
see: http://dev.mysql.com/doc/refman/5.0/en/any-in-some-subqueries.html

I love MySQL