Change schema in Solr without reindex

Question

First of all, sorry about my english:

In Solr, if we have a field in the schema with stored="true" and we change the analyzer associated with that field, are any posibility of update just this field without reindex all the documents ? Using the "stored" values of the field with the new analyzer without any datasource or external data.

Thanks !!

Answer 1

I found a way using SolrJ.

        SolrQuery query = new SolrQuery();

        query.setQuery( "whatever_by_id" );

        QueryResponse rsp;

        rsp = server.query(query);

        Iterator<SolrDocument> iter = rsp.getResults().iterator();

        while (iter.hasNext()) {
            SolrDocument resultDoc = iter.next();
            String id = (String) resultDoc.getFieldValue("oid"); //id is the uniqueKey field

            SolrInputDocument inputdoc = new SolrInputDocument() ;
            for( Map.Entry<String, Object> f : resultDoc.entrySet()) {
                inputdoc.setField(f.getKey(), f.getValue()) ;
            }

            server.deleteById(id) ;
            server.commit() ;

            Collection<SolrInputDocument> docs = new ArrayList<SolrInputDocument>();
            docs.add(inputdoc) ;
            server.add(docs) ;

            server.commit() ;
        }

When we add the "new" inputdoc (a copy of the old resultDoc), it uses the new analyzer we have changed in the schema to index. It´s not very elegant, but it works.