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List:       solr-dev
Subject:    [jira] Updated: (SOLR-236) Field collapsing
From:       "Martijn van Groningen (JIRA)" <jira () apache ! org>
Date:       2010-03-29 21:08:27
Message-ID: 1376920771.559441269896907529.JavaMail.jira () brutus ! apache ! org
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     [ https://issues.apache.org/jira/browse/SOLR-236?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel \
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Martijn van Groningen updated SOLR-236:
---------------------------------------

    Attachment: SOLR-236-trunk.patch

@Thomas
Somehow the solrj code was left out the when I created the patch yesterday. I guess, \
I accidentally deleted it when I was moving the code the new trunk. Anyhow I have \
updated the patch that includes the solrj code and applying it should go flawless.

> Field collapsing
> ----------------
> 
> Key: SOLR-236
> URL: https://issues.apache.org/jira/browse/SOLR-236
> Project: Solr
> Issue Type: New Feature
> Components: search
> Affects Versions: 1.3
> Reporter: Emmanuel Keller
> Assignee: Shalin Shekhar Mangar
> Fix For: 1.5
> 
> Attachments: collapsing-patch-to-1.3.0-dieter.patch, \
> collapsing-patch-to-1.3.0-ivan.patch, collapsing-patch-to-1.3.0-ivan_2.patch, \
> collapsing-patch-to-1.3.0-ivan_3.patch, DocSetScoreCollector.java, \
> field-collapse-3.patch, field-collapse-4-with-solrj.patch, field-collapse-5.patch, \
> field-collapse-5.patch, field-collapse-5.patch, field-collapse-5.patch, \
> field-collapse-5.patch, field-collapse-5.patch, field-collapse-5.patch, \
> field-collapse-5.patch, field-collapse-5.patch, field-collapse-5.patch, \
> field-collapse-5.patch, field-collapse-5.patch, field-collapse-5.patch, \
> field-collapse-5.patch, field-collapse-5.patch, field-collapse-solr-236-2.patch, \
> field-collapse-solr-236.patch, field-collapsing-extended-592129.patch, \
> field_collapsing_1.1.0.patch, field_collapsing_1.3.patch, \
> field_collapsing_dsteigerwald.diff, field_collapsing_dsteigerwald.diff, \
> field_collapsing_dsteigerwald.diff, NonAdjacentDocumentCollapser.java, \
> NonAdjacentDocumentCollapserTest.java, quasidistributed.additional.patch, \
> SOLR-236-FieldCollapsing.patch, SOLR-236-FieldCollapsing.patch, \
> SOLR-236-FieldCollapsing.patch, SOLR-236-trunk.patch, SOLR-236-trunk.patch, \
> SOLR-236.patch, SOLR-236.patch, SOLR-236.patch, SOLR-236.patch, SOLR-236.patch, \
> SOLR-236.patch, SOLR-236.patch, solr-236.patch, SOLR-236_collapsing.patch, \
> SOLR-236_collapsing.patch 
> 
> This patch include a new feature called "Field collapsing".
> "Used in order to collapse a group of results with similar value for a given field \
> to a single entry in the result set. Site collapsing is a special case of this, \
> where all results for a given web site is collapsed into one or two entries in the \
> result set, typically with an associated "more documents from this site" link. See \
> also Duplicate detection." http://www.fastsearch.com/glossary.aspx?m=48&amid=299
> The implementation add 3 new query parameters (SolrParams):
> "collapse.field" to choose the field used to group results
> "collapse.type" normal (default value) or adjacent
> "collapse.max" to select how many continuous results are allowed before collapsing
> TODO (in progress):
> - More documentation (on source code)
> - Test cases
> Two patches:
> - "field_collapsing.patch" for current development version
> - "field_collapsing_1.1.0.patch" for Solr-1.1.0
> P.S.: Feedback and misspelling correction are welcome ;-)

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