dsmiley commented on code in PR #4512:
URL: https://github.com/apache/solr/pull/4512#discussion_r3433225490
##########
solr/solr-ref-guide/modules/query-guide/pages/dense-vector-search.adoc:
##########
@@ -558,7 +558,7 @@ Here is an example of a `knn` search using a
`parents.preFilter`:
[source,text]
?q={!knn f=vector topK=3 parents.preFilter=$someParents
childrenOf=$allParents}[1.0, 2.0, 3.0, 4.0]
-&allParents=*:* -_nest_path_:*
+&allParents={!field f=_nest_path_ v=''}
Review Comment:
Even though blank is equivalent to `/`, it's not intuitively obvious. I'd
rather we simply add this one character (wherever applicable) to make it
clearer.
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