https://lucene.apache.org/solr/guide/7_4/other-parsers.html#block-join-parent-query-parser
talks about {!parent which=<query that matches all parent docs>} <query on child
docs>, which returns parent docs only, and
{!child of=<query that matches all parent docs>} <query on parent docs>, which
returns child docs only.
Is there a way to retrieve the matched documents in the original, nested form?
Using the sample document, is there way to get:
<doc>
<field name="id">1</field>
<field name="title">Solr has block join support</field>
<field name="content_type">parentDocument</field>
<doc>
<field name="id">2</field>
<field name="comments">SolrCloud supports it too!</field>
</doc>
</doc>
rather than just the parent or the child docs?
