(PECL solr >= 0.9.2) Returns all the facet queries

(PECL solr >= 0.9.2) Maps to facet.date.start

(PECL solr >= 0.9.2) Removes one of the facet.date.other parameters

(PECL solr >= 0.9.2) Sets the maximum number of highlighted snippets to generate per field

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

(PECL solr >= 2.2.0) Returns true if grouping is enabled

(PECL solr >= 0.9.2) Returns the highlight field to use as backup or default

(PECL solr >= 0.9.2) Returns the frequency below which terms will be ignored in the source document

(PECL solr >= 0.9.2) Sets a field to use for similarity

(PECL solr >= 0.9.2) Removes one of the facet.date parameters