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From "Yuriy Akopov (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-236) Field collapsing
Date Fri, 25 Mar 2011 14:13:06 GMT

    [ https://issues.apache.org/jira/browse/SOLR-236?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13011213#comment-13011213
] 

Yuriy Akopov commented on SOLR-236:
-----------------------------------

By the way, a noob question: after build completes along with the "apache-solr-1.4.2-dev.war"
the following jars are generated:

apache-solr-cell-1.4.2-dev.jar
apache-solr-clustering-1.4.2-dev.jar
apache-solr-core-1.4.2-dev.jar
apache-solr-dataimporthandler-1.4.2-dev.jar
apache-solr-dataimporthandler-extras-1.4.2-dev.jar
apache-solr-solrj-1.4.2-dev.jar
solrj-lib/commons-codec-1.3.jar
solrj-lib/commons-httpclient-3.1.jar
solrj-lib/commons-io-1.4.jar
solrj-lib/geronimo-stax-api_1.0_spec-1.0.1.jar
solrj-lib/jcl-over-slf4j-1.5.5.jar
solrj-lib/slf4j-api-1.5.5.jar
solrj-lib/wstx-asl-3.2.7.jar

Do I need also transfer these libraries as well, or it is only needed to replace war file
to get the patched version working properly? In my previous tries I copied solrj-lib/*.jar
files to lib folder of Solr instance home. Maybe that was the problem?


> 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: Next
>
>         Attachments: DocSetScoreCollector.java, NonAdjacentDocumentCollapser.java, NonAdjacentDocumentCollapserTest.java,
SOLR-236-1_4_1-NPEfix.patch, SOLR-236-1_4_1-paging-totals-working.patch, SOLR-236-1_4_1.patch,
SOLR-236-FieldCollapsing.patch, SOLR-236-FieldCollapsing.patch, SOLR-236-FieldCollapsing.patch,
SOLR-236-branch_3x.patch, SOLR-236-distinctFacet.patch, SOLR-236-trunk.patch, SOLR-236-trunk.patch,
SOLR-236-trunk.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, 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,
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, quasidistributed.additional.patch,
solr-236.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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