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https://issues.apache.org/jira/browse/SOLR-3981?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hoss Man updated SOLR-3981:
---------------------------
Attachment: SOLR-3981.patch
patch wit hteh test i was working on, as well as a fix...
the Document itself can serve as the "set" to keep track of which field names
have already been added. because the final boost for the field name is the
product of the individual boosts, we don't have to ensure that the (solr)
docBoost and (solr) fieldBoost(s) are combined into the _first_ value of each
copyField -- we just have to ensure that each is only used once. (multiple
copyFields with the same dest will result in them being multiplied in the final
dest field's norm but that's always been true)
i'm still running the full test suite, and i want to work on a test that
actually indexes a doc and inspects the encoded norms just to be certain i'm
not missing something.
> 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
>
> Attachments: 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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