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https://issues.apache.org/jira/browse/SOLR-5313?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16873486#comment-16873486
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Munendra S N commented on SOLR-5313:
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Index time boosts are removed as part of LUCENE-6819. I'm planning to close
this if there are no objections
cc [~jpountz]
> json update extract boost from document value
> ---------------------------------------------
>
> Key: SOLR-5313
> URL: https://issues.apache.org/jira/browse/SOLR-5313
> Project: Solr
> Issue Type: Improvement
> Affects Versions: 3.6
> Reporter: Nicolas Franck
> Priority: Minor
> Labels: boost, document, json, solr, update
>
> The current JsonLoader in org.apache.solr.handler provides a way to add a
> boost to a document as a whole. But if you want to add multiple documents,
> each with its own boost, you have to create something like this:
> {
> "add": { "boost":2.0, "doc": {} },
> "add": { "boost":2.0, "doc": {} }
> ..
> }
> No idea which JSON-writer can do this (I use the one from perl,
> that does not support duplicate keys).
> Therefore I tried to alter some of the code in JsonLoader::handleAdds.
> The code is between "//test - start" and "//test - end":
> cmd.solrDoc = parseDoc(ev);
> //test - start
> if(boost_field != null){
> SolrInputField b_field = cmd.solrDoc.getField(boost_field);
> if(b_field != null){
> log.info("boost_field found in document with value
> '"+b_field.getFirstValue()+"'");
> float boost =
> Float.parseFloat((String)b_field.getFirstValue());
> cmd.solrDoc.setDocumentBoost(boost);
> cmd.solrDoc.removeField(boost_field);
> }
> }
> //test - end
> processor.processAdd(cmd);
> In this code I try to extract the boost value for the document from the
> document itself. The default field is configured as "_boost", and is deleted
> from the document afterwards.
> I tried to subclass JsonLoader, but sadly the class is package-protected ;-)
> Could this be an interesting contribution?
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