In Solr 5.0+ you can use Lucene's DocValues API to read the indexed information. This is a unifying API over field cache and doc values so it can be used on all indexed fields.
e.g. for single-valued field use searcher.getLeafReader().getSortedDocValues(fieldName); and for multi-valued fields use searcher.getLeafReader().getSortedSetDocValues(fieldName); On Wed, May 13, 2015 at 11:11 AM, Parvesh Garg <parv...@zettata.com> wrote: > Hi All, > > Was wondering if there is any class in Solr that provides utility methods > to fetch indexed field values for documents using docId. Something simple > like > > getMultiLong(String field, int docId) > > getLong(String field, int docId) > > We have written a solr component to return group level stats like avg > score, max score etc over a large number of documents (say 5000+) against a > query executed using edismax. Need to get the group id fields value to do > that, this is a single valued long field. > > This component also looks at one more field that is a multivalued long > field for each document and compute a score based on frequency + document > score for each value. > > Currently we are using stored fields and was wondering if this approach > would be faster. > > Apologies if this is too much to ask for. > > Parvesh Garg, > -- Regards, Shalin Shekhar Mangar.
