如何在SqlKata中定义联接优先级

var query = new Query("users")
    .Join("posts", join =>
    {
        join.On("users.id", "posts.user_id")
            .OrOn("users.id", "posts.author_id");
    })
    .LeftJoin("comments", join =>
    {
        join.On("posts.id", "comments.post_id");
    })
    .Select("users.name", "posts.title", "comments.content");

// 定义联接优先级
query = new Query()
    .From(query.As("subquery"))
    .Join("categories", join =>
    {
        join.On("subquery.category_id", "categories.id");
    });

var sql = query.Sql();