I have a query for querybuilder API like this:
```
type=nt:unstructured
path=/content/dam/articles/
property=articleContent@ContentType
property.value=text/x-markdown
p.hits=selective
p.properties=featuredImage
```
However I would like to use it as:
```
type=nt:unstructured
path=/content/dam/articles/*.master
property=articleContent@ContentType
property.value=text/x-markdown
p.hits=selective
p.properties=featuredImage
```
as the results give me content fragment which are both master and other variations too. How can I achieve the same? Can I pass in some regex in path?