Query 如何处理 page-property 值为 page reference 的情况

[HenryC-3]

例如，查询 page property relation 且其值为 [[page a]] 的页面

尝试了如下 query，均无法获取到页面

• {{query (page-property relation [[page a]] )}}
• {{query (page-property relation "[[page a]]" )}}

#+BEGIN_QUERY
      {:title [ "表"]
       :query [:find (pull ?b [*])
             :where
             [?b :block/properties ?p]
             [(get ?p :relation) ?t]
             [(= "[[page a]]" ?t)]]
       }
#+END_QUERY