Make a RangeFilter that visits only docs in your time period, then run
a search w/ a custom HitCollector that looks at the source of each doc
and tallies up the results? For performance, you'll probably need to
load the source using FieldCache (FieldCache.DEFAULT.getStrings(...)).
Or, use Solr's
Hi,
I have a lucene index which has 20 mil documents. Each document has a
timestamp field and a source field. I am interested in finding the top n
sources for a given hour (based on the timestamp). I know we can get the
top n sources fields easily using the IndexReader API, but was wondering
