我得到我的网站和服务器的人告诉它的问题，因为mysql查询速度慢。我的网站是在wordpress的cms。下面是产生问题的查询。我不确定这个查询何时运行。我的数据库中有超过70000个用户。

# Query_time: 1078.445935  Lock_time: 0.000236 Rows_sent: 59  Rows_examined: 379721873

SET timestamp=1538539120;
SELECT DISTINCT wp_users.ID FROM wp_users LEFT JOIN wp_usermeta ON ( wp_users.ID = wp_usermeta.user_id )  LEFT JOIN wp_usermeta AS mt1 ON ( wp_users.ID = mt1.user_id )  LEFT JOIN wp_usermeta AS mt2 ON ( wp_users.ID = mt2.user_id )  LEFT JOIN wp_usermeta AS mt3 ON (wp_users.ID = mt3.user_id AND mt3.meta_key = 'wpseo_noindex_author' ) WHERE 1=1 AND wp_users.ID IN ( SELECT DISTINCT wp_posts.post_author FROM wp_posts WHERE wp_posts.post_status = 'publish' AND wp_posts.post_type IN ( 'post', 'page', 'attachment', 'static-block' ) ) AND ( 
  wp_usermeta.meta_key = '_yoast_wpseo_profile_updated' 
  AND 
  ( 
    ( mt1.meta_key = 'wp_user_level' AND mt1.meta_value != '0' ) 
    AND 
    ( 
      ( mt2.meta_key = 'wpseo_noindex_author' AND mt2.meta_value != 'on' ) 
      OR 
      mt3.user_id IS NULL
    )
  )
) ORDER BY wp_usermeta.meta_value+0 

DESC;