>So ... Having 2 # 0
>
>????

Sorry, that was a dumb answer. Position works in GROUP BY and ORDER BY. I don't see a solution other than using a different field name. However, if it's important to have the specified field name in the result, do the grouping/having in a derived table and rename the field in the result:

SELECT a as a, b as b, q as c, ... ;
FROM (SELECT ..., whatever as q .... HAVING q>5)

Tamar