(PECL solr >= 2.2.0) Returns the group.ngroups value
(PECL solr >= 0.9.2) Returns the main query
(PECL solr >= 0.9.2) Removes one of the sort fields
(PECL solr >= 0.9.2) Sets a text snippet generator for highlighted text
(PECL solr >= 0.9.2) Returns the state of the hl.usePhraseHighlighter parameter
(PECL solr >= 0.9.2) Sets the term to stop at
(PECL solr >= 0.9.2) Returns the term prefix
(PECL solr >= 0.9.2) Sets the offset into the list of constraints to allow for pagination
(PECL solr >= 0.9.2) Removes one of the fields used for highlighting
(PECL solr >= 0.9.2) Require field matching during highlighting
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