Yes, faceting will work, you can use an old approach used for autocompletion[1] . Be sure you add the shingle filter to the appropriate index time analysis for the field you want. Facet values are extracted from the indexed terms, so calculating faceting and filtering by prefix should do the trick.
[1] https://solr.pl/en/2013/03/25/autocomplete-on-multivalued-fields-using-faceting/ ----- --------------- Alessandro Benedetti Search Consultant, R&D Software Engineer, Director Sease Ltd. - www.sease.io -- Sent from: http://lucene.472066.n3.nabble.com/Solr-User-f472068.html
