(PECL solr >= 0.9.2)
SolrQuery::setFacetMethod — Specifies the type of algorithm to use when faceting a field
Specifies the type of algorithm to use when faceting a field. This method accepts optional field override.
method
The method to use.
field_override
The name of the field.
Returns the current SolrQuery object, if the return value is used.