Mysql 雄辩的表演哪里有问题

我在3个全局作用域中使用了eloquent where，这些作用域会导致性能显著下降

此查询在服务器上处理大约需要140秒

这是环球镜

protected static function boot()
{
    parent::boot();
    
    if ( !auth('admin')->check() ) {
        static::addGlobalScope(new DoesntHaveForbiddenArtistScope());
        static::addGlobalScope('has-artist', function (Builder $builder) {
            $builder->whereHas('artists');
        });
        static::addGlobalScope('has-mp3', function (Builder $builder) {
            $builder->whereHas('mp3s');
        });
    }
}

这是我在望远镜里看到的计数查询

from `tracks`
where exists(
        select *
        from `artists`
                 inner join `artist_track`
                            on `artists`.`id` =
                               `artist_track`.`artist_id`
        where `tracks`.`id` = `artist_track`.`track_id`
          and `published` = 1
          and `forbidden` = 0
    )
  and `published` = 1
  and not exists(
        select *
        from `artists`
                 inner join `artist_track`
                            on `artists`.`id` =
                               `artist_track`.`artist_id`
        where `tracks`.`id` = `artist_track`.`track_id`
          and `forbidden` = 1
    )
  and exists(
        select *
        from `artists`
                 inner join `artist_track`
                            on `artists`.`id` =
                               `artist_track`.`artist_id`
        where `tracks`.`id` = `artist_track`.`track_id`
          and `published` = 1
          and `forbidden` = 0
    )
  and exists(
        select *
        from `track_mp3s`
        where `tracks`.`id` = `track_mp3s`.`track_id`
          and `downloaded` = 1
    )

有什么可以改进我写的有说服力的查询以加快速度？

---

我目前使用的MySQL索引对每个表的帮助有点大，但有140秒。

请为每个表提供

SHOW CREATE TABLE

。当

加入

表时，请限定每个列，这样我们就可以很容易地看到每个表都在哪个表中。为了获得性能方面的帮助，我们必须知道

禁止
是在
艺术家
中还是在
艺术家曲目
中。等