(PECL solr >= 2.2.0) If true, facet counts are based on the most relevant document of each group matching

(PECL solr >= 0.9.2) Maps to facet.mincount

(PECL solr >= 0.9.2) Returns whether or not the query will be boosted by the interesting term relevance

(PECL solr >= 2.2.0) Returns the group.main value

(PECL solr >= 2.2.0) Sets the group.offset parameter.

(PECL solr >= 2.2.0) If true, the result of the first field grouping command is used as the main result list

(PECL solr >= 2.2.0) Sets group.facet parameter

(PECL solr >= 0.9.2) Returns if a field will only be highlighted if the query matched in this particular

(PECL solr >= 0.9.2) Returns the text which appears before a highlighted term

(PECL solr >= 2.2.0) Add a field to be used to group results.