(PECL solr >= 0.9.2) Removes one of the sort fields

(PECL solr >= 0.9.2) Enables or disables moreLikeThis

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

(PECL solr >= 0.9.2) Specifies which fields to return in the result

(PECL solr >= 0.9.2) Sets a text snippet generator for highlighted text

(PECL solr >= 0.9.2) Specify a formatter for the highlight output

(PECL solr >= 0.9.2) Sets the offset into the list of constraints to allow for pagination

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

(PECL solr >= 0.9.2) Returns an array of filter queries

(PECL solr >= 0.9.2) Removes one of the stats.field parameters