[jira] [Commented] (SOLR-3981) docBoost is compounded on copyField

["Commit Tag Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SOLR-3981?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13610648#comment-13610648 ] 

Commit Tag Bot commented on SOLR-3981:
--------------------------------------

[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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