How to remove specific dql part in a doctrine Doctrine_RawSql query?

Question

i have read this

Doctrine: How to remove part of a where clause from select query inside listener (preDqlSelect)?

but, i still cant see how to remove specific part, this is not explicitly written, can some one explain me how ?

a sample of my Doctrine_RawSql

$a = new Doctrine_RawSql();

            $a->select('{m.username}, {m.age}, {m.photo_principale_petit_format},{m.photo_principale_grand_format}')->              
                from('(SELECT * FROM member_user where id > ( SELECT max(id)-15000 as maximum FROM member_user)) as m')->
                innerJoin('member_group_history as g ON m.id = g.member_user_id')->
                where('g.old_member_group_id = ?', 7)->
                andWhere('m.is_visible = ?', 1)->               
                andWhere('m.sexe = ?', $this->getSexeRecherche())->             
                andWhere('m.age >= ?', $this->getMinAgeSearch())->
                andWhere('m.age <= ?', $this->getMaxAgeSearch())->      
                andWhereIn('m.member_group_id', array(10,11))-> 
                andWhere('g.created_at >= ?', date("Y-m-d H:i:s",strtotime("- 20 weeks")))->
                andWhere('g.created_at <= ?', date("Y-m-d H:i:s",strtotime("now")))->
                limit($limit)->             
                addComponent('m', 'MemberUser m');                          

in fact i just want to test if my query count return enough result, and remove specific predicates if not .

Answer 1

Example of removing groupBy on DQL:

$a->resetDQLPart('groupBy')