当数据按聚集索引的顺序时，覆盖索引是否会得到回报？

I my scenario, I have posts, which are grouped in categories. For an overview list of categories I want to display a summary of the top 10 posts with the categories (as opposed to the detail view of a category, that displays the full data). The top 10 posts are determined by a score, which comes from another table (actually an indexed view - but that doesn't matter here).I my scenario, I have posts, which are grouped