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From "Joel Bernstein (JIRA)" <j...@apache.org>
Subject [jira] [Created] (SOLR-5720) Add ExpandComponent, which expands results collapsed by the CollapsingQParserPlugin
Date Wed, 12 Feb 2014 20:34:19 GMT
Joel Bernstein created SOLR-5720:
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             Summary: Add ExpandComponent, which expands results collapsed by the CollapsingQParserPlugin
                 Key: SOLR-5720
                 URL: https://issues.apache.org/jira/browse/SOLR-5720
             Project: Solr
          Issue Type: New Feature
    Affects Versions: 5.0, 4.7
            Reporter: Joel Bernstein
            Priority: Minor


This ticket introduces a new search component called the ExpandComponent. The expand component
expands a single page of results collapsed by the CollapsingQParserPlugin.

Sample syntax:

q=*:*&fq={!collapse field=fieldA}&expand=true&expand.sort=fieldB+asc&expand.rows=10

In the above query the results are collapsed on "fieldA" with the CollapsingQParserPlugin.
The expand component expands the current page of collapsed results.

The initial implementation of the ExpandComponent takes three parameters:

*strong*expand=true*strong* (Turns on the ExpandComponent)
*strong*expand.sort=fieldB+asc,fieldC+desc*strong* (Sorts the documents based on a sort spec.
If none is specified the documents are sorted by relevance based on the main query.)
*strong*expand.rows=10*strong* (Sets the numbers of rows that groups are expanded to).

The ExpandComponent




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