In Query Builder, you can refer to a node's child's property via */@jcr:title or its descendant's property via */*/@jcr:title.
So you can create a search for a node, where the node has a given property and its child has a given property
Ex:
type=cq:Page
property=*/@jcr:title
value=Great Title
This will return the cq:Page node, where it's child node's jcr:title equal to Great Title
However, I am looking for a way to refer to parent's property or ancestor's property. How do I do that? and can I refer to parent node in fulltext.relPath?
I tried the following
type=cq:PageContent
property=../@jcr:title
value=Great Title