(PECL solr >= 2.2.0)
Allows grouping results based on the unique values of a function query (group.func parameter).
public SolrQuery SolrQuery::addGroupFunction ( string $value )
Adds a group function (group.func parameter) Allows grouping results based on the unique values of a function query.
Parameters:
value
Adds a group function (group.func parameter) Allows grouping results based on the unique values of a function query.
Returns:
See also:
SolrQuery::addGroupSortField() -
SolrQuery::setGroupNGroups() -
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