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

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

(PECL sphinx >= 0.1.0) Set attribute name for per-group distinct values count calculations

(No version information available, might only be in Git) Adds a field to User Fields Parameter (uf)

(PECL solr >= 0.9.2) Returns the term to stop at

(PECL solr >= 2.2.0) Returns null policy public

(PHP 4 >= 4.0.6, PHP 5 <= 5.0.5, PECL mnogosearch >= 1.0.0) Get all the categories on the same level

(PECL solr >= 2.2.0) Returns collapse hint

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

(PECL solr >= 2.2.0) Selects the group heads by the max value of a numeric field or function query.