How to use >select(fields list and relation in 1 eloquent request?

On laravel 10 site making request from Post table(which has a lot of columns I got also related creator table :

        $postList = Post
            ::orderBy('created_at', 'desc')
            ->with('creator')
            ->get();

and I have access to

$post->creator->name

field. I try to reduce number requested fields with fields list :

        $postList = Post
            ::orderBy('created_at', 'desc')
            ->with('creator')
            ->select('id', 'title', 'slug', 'published', 'created_at')

But in this case I see error as $post->creator is null

and in sql - tracement I see fields listed

   SELECT `id`, `title`, `slug`, `published`, `created_at`
    FROM `post`
    ORDER BY `created_at` desc

If there is a way to use >select(fields list and relation in 1 request ?

"laravel/framework": "^10.48.4",

Thanks in advance!

When you're explicitly defining columns on your queries and loading relationships you have always to make sure that the keys whose those relationships depend are also defined. E.g.:

        $postList = Post::select(
                'id',
                'creator_id', // fk to Creator model
                'title',
                'slug',
                'published',
                'created_at',
            )
            ->with('creator:id,name,other_columns...') // now related creators can be matched
            ->latest()
            ->get();