Mikhail Khludnev created SOLR-10521:
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Summary: sort by string field of the nested child when searching
with {!parent}
Key: SOLR-10521
URL: https://issues.apache.org/jira/browse/SOLR-10521
Project: Solr
Issue Type: New Feature
Security Level: Public (Default Security Level. Issues are Public)
Reporter: Mikhail Khludnev
The idea is to integrate Lucene's {{ToParentBlockJoinSortField}}
The approach to hookup it is a little bit tricky:
{{sort=\{!childfield bjq=$q field=COLOR_s}desc}}
the question no.1 wdyt about the syntax?
internally it creates a function query with valueSource which produces
{{ToParentBlockJoinSortField}}
The main challenge is picking Solr field type from
{{ToParentBlockJoinSortField}}, because as-is it's broken on {{mergeIds}} -
ByteRefs need to be properly marshared and unmarshalled by a field type from
child scope.
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