(PECL solr >= 0.9.2)
SolrInputDocument::merge — Merges one input document into another
Merges one input document into another.
sourceDoc
The source document.
overwrite
If this is TRUE
it will replace matching fields in the destination document.
锟缴癸拷时锟斤拷锟斤拷 TRUE
锟斤拷 锟斤拷锟斤拷锟斤拷失锟斤拷时锟斤拷锟斤拷 FALSE
锟斤拷 In the future, this will be modified to return the number of fields in the new document.