$query_args = array( 'post_type' => 'post', 'posts_per_page' => 6, 'order'=> 'desc', 'orderby' => 'meta_value date', 'paged' => $paged );
This is my current query to sort posts. What it does that it shows posts with any post meta first and then sorts the remaining ones by date. However in the wordpress reference it says that
meta_key should be present for it to work.
What's actually going on here?