[ https://issues.apache.org/jira/browse/SOLR-5027?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Joel Bernstein updated SOLR-5027: --------------------------------- Attachment: SOLR-5027.patch Added support for the QueryElevationComponent and test case. > Result Set Collapse and Expand Plugins > -------------------------------------- > > Key: SOLR-5027 > URL: https://issues.apache.org/jira/browse/SOLR-5027 > Project: Solr > Issue Type: New Feature > Components: search > Affects Versions: 5.0 > Reporter: Joel Bernstein > Priority: Minor > Attachments: SOLR-5027.patch, SOLR-5027.patch, SOLR-5027.patch, > SOLR-5027.patch, SOLR-5027.patch, SOLR-5027.patch > > > This ticket introduces two new Solr plugins, the *CollapsingQParserPlugin* > and the *ExpandComponent*. > The *CollapsingQParserPlugin* is a PostFilter that performs field collapsing. > Collapse based on the highest scoring document: > {code} > fq=(!collapse field=<field_name>} > {code} > Collapse based on the min value of a numeric field: > {code} > fq={!collapse field=<field_name> min=<field_name>} > {code} > Collapse based on the max value of a numeric field: > {code} > fq={!collapse field=<field_name> max=<field_name>} > {code} > Collapse with a null policy: > {code} > fq={!collapse field=<field_name> nullPolicy=<null_policy>} > {code} > There are three null policies: > ignore : removes docs with a null value in the collapse field (default). > expand : treats each doc with a null value in the collapse field as a > separate group. > collapse : collapses all docs with a null value into a single group using > either highest score, or min/max. > The *ExpandComponent* is a search component that takes the collapsed docList > and expands the groups for a single page based on parameters provided. > Initial syntax: > expand=true - Turns on the expand component. > expand.field=<field> - Expands results for this field > expand.limit=5 - Limits the documents for each expanded group. > expand.sort=<sort spec> - The sort spec for the expanded documents. Default > is score. > expand.rows=500 - The max number of expanded results to bring back. Default > is 500. > *Note:* Recent patches don't contain the expand component. The July 16 patch > does. This will be brought back in when the collapse is finished, or possible > moved to it's own ticket. -- This message was sent by Atlassian JIRA (v6.1#6144) --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org