Apache Solr Reference Guide Covering Apache Solr 6.0

Simple Query Parser
Spatial Query Parsers
Surround Query Parser
Switch Query Parser
Term Query Parser
Terms Query Parser
XML Query Parser
Block Join Query Parsers
There are two query parsers that support block joins. These parsers allow indexing and searching for relational
content that has been indexed as nested documents.
The example usage of the query parsers below assumes these two documents and each of their child
documents have been indexed:
1
Solr has block join support
parentDocument
2
SolrCloud supports it too!
3
New Lucene and Solr release
parentDocument
4
Lots of new features
Block Join Children Query Parser
This parser takes a query that matches some parent documents and returns their children. The syntax for this
parser is: q={!child of=} . The parameter allParents is a filter that
matches only parent documents; here you would define the field and value that you used to identify all parent
documents. The parameter someParents identifies a query that will match some of the parent documents. The
output is the children.
Using the example documents above, we can construct a query such as q={!child
of="content_type:parentDocument"}title:lucene. We only get one document in response:
4
Lots of new features
Block Join Parent Query Parser
Apache Solr Reference Guide 6.0
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