(PECL solr >= 0.9.2) Returns whether or not the collapse contiguous fragments into a single fragment

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

(PECL solr >= 0.9.2) Set the number of similar documents to return for each result

(No version information available, might only be in Git) Collapses the result set to a single document per group

(PECL solr >= 0.9.2) Returns the full URL the request was sent to

(PECL solr >= 0.9.2) Checks if a field exists

(PECL solr >= 2.2.0) Returns group fields (group.field parameter values)

(PECL solr >= 0.9.2) Returns internal information where the Exception was thrown

(PECL solr >= 2.2.0) Sets the group format, result structure (group.format parameter).

(PECL solr >= 2.2.0) Get Documents by their Ids. Utilizes Solr Realtime Get (RTG).