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https://issues.apache.org/jira/browse/SOLR-5408?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13819543#comment-13819543
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Joel Bernstein commented on SOLR-5408:
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Brandon,
I believe this patch should resolve the issue. It was created on branch_4x. If
it doesn't apply to your build, let me know and I'll create a patch for the
version you're working with.
The problem was that the scorer needed to be set on the delegate collecter
after each segment reader was set. The initial code was setting the scorer on
the delegate collector only once, which worked fine for single sort critera.
Joel
> Collapsing Query Parser does not respect multiple Sort fields
> -------------------------------------------------------------
>
> Key: SOLR-5408
> URL: https://issues.apache.org/jira/browse/SOLR-5408
> Project: Solr
> Issue Type: Bug
> Affects Versions: 4.5
> Reporter: Brandon Chapman
> Assignee: Joel Bernstein
> Priority: Critical
> Attachments: SOLR-5408.patch
>
>
> When using the collapsing query parser, only the last sort field appears to
> be used.
> http://172.18.0.10:8080/solr/product/select_eng?sort=score%20desc,name_sort_eng%20desc&qf=name_eng^3+brand^2+categories_term_eng+sku+upc+promoTag+model+related_terms_eng&pf2=name_eng^2&defType=edismax&rows=12&pf=name_eng~5^3&start=0&q=ipad&boost=sqrt(popularity)&qt=/select_eng&fq=productType:MERCHANDISE&fq=merchant:bestbuycanada&fq=(*:*+AND+-all_all_suppressed_b_ovly:[*+TO+*]+AND+-rbc_all_suppressed_b_ovly:[*+TO+*]+AND+-rbc_cpx_suppressed_b_ovly:[*+TO+*])+OR+(all_all_suppressed_b_ovly:false+AND+-rbc_all_suppressed_b_ovly:[*+TO+*]+AND+-rbc_cpx_suppressed_b_ovly:[*+TO+*])+OR+(rbc_all_suppressed_b_ovly:false+AND+-rbc_cpx_suppressed_b_ovly:[*+TO+*])+OR+(rbc_cpx_suppressed_b_ovly:false)&fq=translations:eng&fl=psid,name_eng,score&debug=true&debugQuery=true&fq={!collapse+field%3DgroupId+nullPolicy%3Dexpand}
> <result name="response" numFound="5927" start="0" maxScore="5.6674457">
> <doc>
> <str name="psid">3002010250210</str>
> <str name="name_eng">
> ZOTAC ZBOX nano XS AD13 Plus All-In-One PC (AMD E2-1800/2GB RAM/64GB SSD)
> </str>
> <float name="score">0.41423172</float>
> </doc>
> The same query without using the collapsing query parser produces the
> expected result.
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