The field is: <field name="concept" type="string" indexed="true" multiValued="true"/>
and using unique() I found that it has 700K+ unique values. The query before (that takes ~10s): wt=json&indent=true&q=*:*&rows=0&facet=true&facet.field=concept&facet.prefix=A/ the query after (that is almost instant): wt=json&indent=true&q=*:*&rows=0&facet=true&facet.field=concept&facet.prefix=A/&facet.method=enum' Maria On Fri, Apr 21, 2017 at 8:59 AM, alessandro.benedetti <a.benede...@sease.io> wrote: > That is quite interesting ! > You can use the stats module ( in association with the Json facets if you > need it) to calculate an accurate approximation of the unique values [1] > [2] > . > > Good to know it improved your scenario, I may need to update my knowledge > of > term enum internals! > Can you describe your schema configuration for the field and the way you > were faceting before in comparison to the way you facet now ( with the > related benefit) > > [1] https://cwiki.apache.org/confluence/display/solr/The+Stats+Component > [2] http://yonik.com/solr-count-distinct/ > > > > ----- > --------------- > Alessandro Benedetti > Search Consultant, R&D Software Engineer, Director > Sease Ltd. - www.sease.io > -- > View this message in context: http://lucene.472066.n3. > nabble.com/prefix-facet-performance-tp4330684p4331309.html > Sent from the Solr - User mailing list archive at Nabble.com. >
