Language variable expansion in field names for search results clustering
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Key: SOLR-2978
URL: https://issues.apache.org/jira/browse/SOLR-2978
Project: Solr
Issue Type: Improvement
Components: contrib - Clustering
Reporter: Stanislaw Osinski
Assignee: Stanislaw Osinski
Priority: Minor
Fix For: 3.6, 4.0
This is a follow-up of SOLR-2939.
{quote}
Another feature of language recognizer we should mirror is the expansion of the
{{lang}} token in field names into the language code of the document (in case
of multiple languages per document - the first Carrot2-supported language
code). The feature seems easy to implement in the non-distributed setting of
Solr, but the simple implementation isn't going to work in the distributed
setting because the name of the specific field to be fetched depends on the
content (language) of each matching document. Looking at the
SearchClusteringEngine.getFieldsToLoad(SolrQueryRequest) method, a quick but
costly solution would be to load the contents of all stored fields. I'm not too
strong in distributed-mode Solr, but maybe this could be optimized so that only
the required fields get fetched?
{quote}
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