On Wed, Jul 30, 2014 at 3:21 PM, Eichstädt, Konrad <konrad.eichsta...@sbb.spk-berlin.de> wrote: > Now I would have the same field value with a constant prefix like: > > <field name="wayback_url" type="string" indexed="false" stored="true"/>
Your source value in the Clone URP is mis-spelt. So that might be part of the failure. But I would look at RegexReplace URP instead: http://www.solr-start.com/javadoc/solr-lucene/org/apache/solr/update/processor/RegexReplaceProcessorFactory.html . I don't think you can merge the other field's value into it, but you were talking about constant value anyway. Regards, Alex. Personal: http://www.outerthoughts.com/ and @arafalov Solr resources and newsletter: http://www.solr-start.com/ and @solrstart Solr popularizers community: https://www.linkedin.com/groups?gid=6713853
