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

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

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

(PECL solr >= 0.9.2) Enables or disables moreLikeThis

(PECL solr >= 0.9.2) Specifies the number of rows to skip

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

(PECL solr >= 0.9.2) Require field matching during highlighting

(PECL solr >= 0.9.2) Returns the regular expression for fragmenting

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

(PECL solr >= 2.2.0) Orders the documents within the expanded groups (expand.sort parameter).