title: Why DB:select work and DB::table doesn't work?
body: <p>I have a problem with <code>DB:table</code> of Laravel.
  I use PostgreSQL and it doesn't work.
  This is my query:</p>
  <pre><code>$User = Db::table('immobilier.prg_programmes as prog')
     -&gt;select('select prg_libelle')
     -&gt;join(' immobilier.liaisons_rol_act_tyr_prg ','immobilier.liaisons_rol_act_tyr_prg.prg_id','=','immobilier.prg_programmes.prg_id')
     -&gt;join('immobilier.liaisons_rol_act as ra','b.rol_act_id','=','ra.rol_act_id ')
     -&gt;join(' immobilier.act_acteurs as act','ra.act_id','=','act.act_id  ')
     -&gt;join(' immobilier.tra_tranches as tra','prog.prg_id','=','tra.prg_id  ')
     -&gt;get();
  </code></pre>
  <p>But with <code>DB:select</code> it works:</p>
  <pre><code>$user = DB::select('select prg_libelle as nom_programme,prog.prg_id ,act_libelle as nom_promotteur, tra_libelle as nom_tranche
     from  immobilier.prg_programmes as prog
     inner join  immobilier.liaisons_rol_act_tyr_prg as b  on b.prg_id =prog.prg_id
     inner join  immobilier.liaisons_rol_act as ra on b.rol_act_id =ra.rol_act_id 
     inner join  immobilier.act_acteurs as act on ra.act_id =act.act_id 
     inner join immobilier.tra_tranches as tra on prog.prg_id = tra.prg_id 
     order by prog.prg_id ASC;
     ');
  </code></pre>
  <p>I need to use <code>DB:table</code> to make pagination.
  Thanks for your help!</p>