Hi Jimi, I don’t think that you can do it using schema, but you could do it using custom update request processor chain. I quickly scanned to see if there is such processor and could not find one. The closest one is https://lucene.apache.org/solr/6_6_0//solr-core/org/apache/solr/update/processor/DefaultValueUpdateProcessorFactory.html <https://lucene.apache.org/solr/6_6_0//solr-core/org/apache/solr/update/processor/DefaultValueUpdateProcessorFactory.html> It should not be too hard to adjust it to do what you need.
HTH, Emir -- Monitoring - Log Management - Alerting - Anomaly Detection Solr & Elasticsearch Consulting Support Training - http://sematext.com/ > On 3 Oct 2017, at 14:10, jimi.hulleg...@svensktnaringsliv.se wrote: > > Hi, > > Is it possible using some Solr schema magic to make solr get the default > value for a field from another field? Ie, if the value is specified in the > document to be indexed, then that value is used. Otherwise it uses the value > of another field. As far as I understand it, the field property "default" > only takes a static value, not a reference to another field. And the > copyField element doesn't solve this problem either, since it will result in > two values if the field was specified in the document, and I only want a > single value. > > /Jimi
