$this->candidate->select('candidates.*','candidates.id as candidate_id','mj.interviewScheduledDate')
            ->join('candidates_positions','candidates_positions.candidate_id','=','candidates.id')
            ->leftJoin(DB::raw("(SELECT mat1.* FROM matches AS mat1
                                    JOIN (SELECT candidate_id,MAX(id) AS id FROM matches GROUP BY candidate_id) 
                                    AS mat2 ON mat1.candidate_id = mat2.candidate_id AND mat1.id = mat2.id)
                                    AS mj"),function ($join) {
                $join->on("candidates.id","=","mj.candidate_id");
            })
            ->where(function ($query) {
                $query->where("mj.stage","<","4")
                    ->whereNull('mj.stage',"or");
            })
            ->groupBy('candidates.id')

            ->paginate(Config::get('match.pagination'));

这会返回错误的结果,其中来自同一“查询”构建器的“生成”查$candidate-> tosql()返回以下查询.甚至尝试删除group by语句.它没有帮助

SELECT
      `candidates`.*,`candidates`.`id` AS `candidate_id`,`mj`.`interviewScheduledDate`
    FROM `candidates`
      INNER JOIN `candidates_positions` ON `candidates_positions`.`candidate_id` = `candidates`.`id`
      LEFT JOIN (SELECT mat1.*
                 FROM matches AS mat1
                   JOIN (SELECT
                           candidate_id,MAX(id) AS id
                         FROM matches
                         GROUP BY candidate_id)
                     AS mat2 ON mat1.candidate_id = mat2.candidate_id AND mat1.id = mat2.id)
        AS mj ON `candidates`.`id` = `mj`.`candidate_id`
    WHERE (`mj`.`stage` < ? OR `mj`.`stage` IS NULL)
    GROUP BY `candidates`.`id`
    LIMIT 10 OFFSET 0

正确的结果

Laravel返回结果