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seleccionar más columnas en consulta [closed]

estoy tratando de realizar una consulta que no muestre campos repetidos cuando se cumpla una condicion, eso lo resolví con la variable $historial1, eso lo hice y está ok estaria necesitando mostrar dos columnas más de mi tabla y ordernarlos por una de esas columnas, a continuación mi consulta:

         $historialtodo = Historial::select(DB::raw('(valor)'))
                                     ->where('direccion','=', 7)->get();
     
       
        $historial1 = Historial::select(DB::raw('DISTINCT(valor)'))
                                 ->where('direccion','=', 1)->get();

        $historial =  $historialtodo->union($historial1);

como haría para meter en el serlect las dos columnas que me faltan?, intenté lo siguiente:

      $historialtodo = Historial::select('id_historial','direccion',DB::raw('(valor)'))
                                  ->where('direccion','=', 7)->get();
      
       $historial1 = Historial::select('id_historial','direccion',DB::raw('DISTINCT(valor)'))
                                ->where('direccion','=', 1)->get();
       
           $historial =  $historialtodo->union($historial1);

Me salta el siguente error:

SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'DISTINCT(valor) from `historial` where `direccion` = ?' at line 1 (SQL: select `id_historial`, `direccion`, DISTINCT(valor) from `historial` where `direccion` = 1)
                


source https://stackoverflow.com/questions/68595388/seleccionar-m%c3%a1s-columnas-en-consulta

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