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https://issues.apache.org/jira/browse/SOLR-3981?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13610648#comment-13610648
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Commit Tag Bot commented on SOLR-3981:
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[branch_4x commit] Chris M. Hostetter
http://svn.apache.org/viewvc?view=revision&revision=1401920
SOLR-3988: Fixed SolrTestCaseJ4.adoc(SolrInputDocument) to respect field and
document boosts
SOLR-3981: Fixed bug that resulted in document boosts being compounded in
<copyField/> destination fields
(merge r41401916)
> docBoost is compounded on copyField
> -----------------------------------
>
> Key: SOLR-3981
> URL: https://issues.apache.org/jira/browse/SOLR-3981
> Project: Solr
> Issue Type: Bug
> Affects Versions: 4.0
> Reporter: Hoss Man
> Assignee: Hoss Man
> Fix For: 4.1, 5.0
>
> Attachments: SOLR-3981.patch, SOLR-3981.patch, SOLR-3981.patch
>
>
> As noted by Toke in a comment on SOLR-3875...
> https://issues.apache.org/jira/browse/SOLR-3875?focusedCommentId=13482233&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13482233
> {quote}
> While boosting of multi-value fields is handled correctly in Solr 4.0.0,
> boosting for copyFields are not. A sample document:
> {code}
> <add><doc boost="10.0">
> <field name="id">Insane score Example. Score = 10E9 </field>
> <field name="name">Document boost broken for copyFields</field>
> <field name="manu" >video ThomasEgense and Toke Eskildsen</field>
> <field name="manu_id_s">Test</field>
> <field name="cat">bug</field>
> <field name="features">something else</field>
> <field name="keywords">bug</field>
> <field name="content">bug</field>
> </doc></add>
> {code}
> The fields name, manu, cat, features, keywords and content gets copied to
> text and a search for thomasegense matches the text-field with query
> explanation
> {code}
> 70384.67 = (MATCH) weight(text:thomasegense in 0) [DefaultSimilarity], result
> of:
> 70384.67 = fieldWeight in 0, product of:
> 1.0 = tf(freq=1.0), with freq of:
> 1.0 = termFreq=1.0
> 0.30685282 = idf(docFreq=1, maxDocs=1)
> 229376.0 = fieldNorm(doc=0)
> {code}
> If the two last fields keywords and content are removed from the sample
> document, the score is reduced by a factor 100 (docBoost^2).
> {quote}
> (This is a continuation of some of the problems caused by the changes made
> when the concept of docBoost was eliminated from the underly IndexWRiter
> code, and overlooked due to the lack of testing of docBoosts at the solr
> level - SOLR-3885))
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