[jira] Closed: (SOLR-237) Field collapsing

["Emmanuel Keller (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SOLR-237?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Emmanuel Keller closed SOLR-237.
--------------------------------

       Resolution: Duplicate
    Fix Version/s: 1.1.0

Further development happen on solr-236

> Field collapsing
> ----------------
>
>                 Key: SOLR-237
>                 URL: https://issues.apache.org/jira/browse/SOLR-237
>             Project: Solr
>          Issue Type: New Feature
>          Components: search
>    Affects Versions: 1.1.0
>            Reporter: Emmanuel Keller
>             Fix For: 1.1.0
>
>         Attachments: field_collapsing-1.1.patch, field_collapsing_1.1.0.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" set to true to enable collapsing.
> "collapse.field" to choose the field used to group results
> "collapse.max" to select how many continuous results are allowed before collapsing
> TODO (in progress):
> - More documentation (on source code)
> - Test cases 

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