Sort search results by metadata_value
It should be possible to sort the Solr query results by metadata_value (cf https://solr.apache.org/guide/6_6/common-query-parameters.html#CommonQueryParameters-ThesortParameter )
It should be possible to sort the Solr query results by metadata_value (cf https://solr.apache.org/guide/6_6/common-query-parameters.html#CommonQueryParameters-ThesortParameter )