It works ! Thank you !
By the way, I tried to better understand why you mentioned there was a 'GROUP BY' statement that was being applied. I just understood that this code: 
            $c->model('Database1')->resultset('Table1')->search(
                undef,
                {
                    select   => ['group'],
                    distinct => 1,
                    order_by => ['group']
                },
            )

[download]
generates this SQL, featuring a GROUP BY: 
SELECT group FROM table1 me GROUP BY group ORDER BY group

[download]
For me, this feels strange. Writting 
   distinct => 1

[download]
in the query adds a GROUP BY statement. I just found the semantics of 'distinct' in the DBIx::Class::ResultSet documentation but, still, this is counter-intuitive in my opinion. So, thanks for pointing this out... ;-)
Now, this code: 
            $c->model('Database1')->resultset('Table1')->search(
                undef,
                {
                    select => [
                        {
                            distinct => 'group'   
                        },
                    ],
                    as       => 'group',
                    order_by => ['group']
                },
            )

[download]
generates this SQL: 
SELECT DISTINCT( group ) FROM table1 me ORDER BY group

[download]
This second code is more like what I was looking for... Apparently the trick was to add a 
   as => '...'

[download]
clause in the query...
Thanks again !

In reply to Re^4: Catalyst, DBIx::Class, SELECT DISTINCT and TT by Anonymous Monk
in thread Catalyst, DBIx::Class, SELECT DISTINCT and TT by Anonymous Monk

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