(PECL solr >= 0.9.2)
SolrInputDocument::merge — Merges one input document into another
Merges one input document into another.
The source document.
If this is TRUE it will replace matching fields in the destination document.
Başarı durumunda TRUE, başarısızlık durumunda FALSE döner. In the future, this will be modified to return the number of fields in the new document.