嗨，我是wordpress开发的新手，但对编程并不陌生。

我的问题是，我试图在WP_Query 并按自定义元键对其排序，我的查询如下所示

$mp_wp_query = new WP_Query(
        array(
            \'posts_per_page\'      => 10,
            \'order_by\'               => \'meta_value_num\',
            \'order\'              => \'DESC\',
            \'post_status\'         => \'publish\',
            \'post_type\' => \'tribe_events\',
            \'meta_key\' => \'wpb_post_views_count\',
            \'post_parent\' => \'0\'
        )
    );
echo "Last SQL-Query: {$mp_wp_query->request}";

这将生成一个SQL查询，如下所示

SELECT SQL_CALC_FOUND_ROWS DISTINCT wp_posts.*, MIN(wp_postmeta.meta_value) as EventStartDate, MIN(tribe_event_end_date.meta_value) as EventEndDate FROM wp_posts INNER JOIN wp_postmeta ON ( wp_posts.ID = wp_postmeta.post_id ) INNER JOIN wp_postmeta AS mt1 ON ( wp_posts.ID = mt1.post_id ) LEFT JOIN wp_postmeta as tribe_event_end_date ON ( wp_posts.ID = tribe_event_end_date.post_id AND tribe_event_end_date.meta_key = \'_EventEndDate\' ) WHERE 1=1 AND wp_posts.post_parent = 0 AND ( wp_postmeta.meta_key = \'wpb_post_views_count\' AND ( mt1.meta_key = \'_EventStartDate\' ) ) AND wp_posts.post_type = \'tribe_events\' AND ((wp_posts.post_status = \'publish\')) AND (wp_postmeta.meta_value >= \'2018-05-22 20:15:06\' OR (wp_postmeta.meta_value <= \'2018-05-22 20:15:06\' AND tribe_event_end_date.meta_value >= \'2018-05-22 20:15:06\' )) GROUP BY wp_posts.ID ORDER BY EventStartDate DESC, wp_posts.post_date DESC LIMIT 0, 10

你可以看到最后的订单是ORDER BY EventStartDate 自定义帖子类型能否以某种方式指定其排序方式，而忽略我的排序？我已经查看了自定义帖子类型的代码register_post_type 被调用，并且args无法看到任何提示它所做的操作。