: This could be a very useful feature. To do it properly, you'd want some
: new update syntax, extending that of the atomic updates. That is, a new
: custom request handler could do it, but might now be the best way.
the biggest complexity to implementing this in a general way would be
dealing with multi-node indexes in SolrCloud
for single node indexes, the basic gist of what you'd want to do in a
custom handler would be something like...
// you don't care about the DocList
DocSet docs = SolrIndexSearcher.execute(your query)
foreach docId in docs {
String docKey = fieldCache.lookup(docId)
SolrInputDocument newDoc;
newDoc.addField(uniqueKeyField, docKey)
newDoc.addField( ... your atomic update operation ...)
SolrCore.getUpdateProcessor().process(new AddDocCOmmand(newDoc));
}
-Hoss
