Doctrine 2: group by field alias (Error: '…' does not point to a Class. )

Question

I got this Doctrine query:

        select upper(substring(e.name, 1, 1)) first_letter
        from Application\\Models\\Exercise e
        group by first_letter
         


        

Answer 1

I know you've answered this question yourself but just wondering if you tried using DISTINCT:

select DISTINCT upper(substring(e.name, 1, 1)) first_letter
from Application\Models\Exercise e    
order by e.name asc

Ordering by e.name is equivalent to first_letter in this case.