Thank you all for these advices, you are obviously right that no need for any copyField instructions to get what we expect.
I will do some tests on using facet or LukeRequestHandler which seem much more useful in my case. -- View this message in context: http://lucene.472066.n3.nabble.com/Copy-in-multivalued-field-and-faceting-tp3584819p3597802.html Sent from the Solr - User mailing list archive at Nabble.com.