Yep. We can build it, but I think there needs to be some limits placed on how many terms can be enumerated on. I would hate to have someone pick an primary key field to enumerate on and blow up the server. I think that easiest way to do it would be to expand the terms in the field on the shard server and run the current faceting query on those expanded terms. I think that is the easy part. The hard part is going to be how we modify the facet api in thrift to accept the new facet type and how to return the facet results. How would you want the result api to look?
Aaron On Thu, Sep 27, 2012 at 1:27 PM, Tim Williams <[email protected]> wrote: > On Tue, Sep 18, 2012 at 10:42 AM, Aaron McCurry <[email protected]> > wrote: > > In the BlurQuery object, add Facet objects to the facet list. Where the > > Facet object contains the query that you want to facet on for example: > > > > bq = new BlurQuery(); > > bq.addFacet(new Facet("tweets.text:hadoop", Long.MAX_VALUE); // where the > > long is the minimum number results in the facet to return. > > // So if the value was set to 10, the facet object would stop counting > the > > facet at 10. Note: It's very likely that you will get more than your > > minimum back. > > > > results = client.query("table",bq); > > List<Long> counts = results.getFacetCounts(); > > long hadoopCount = counts.get(0); // The index of the results will match > > the index of the facet object that where in the query. > > > > Hope this helps, let me know if you have anymore questions. > > Thanks it does. I'm in need of the other kind of faceting, where a > facet is essentially the distinct values for a field relative to a > given query. Something like Solr's Enum-Based Field Faceting[1]. Any > pointers for how I could implement that inside Blur? The only thing I > can come up with is outside blur and seems inefficient - essentially > record distinct values for the fields of interest at ingest time; then > use those values in Blur's existing facetquery to get the counts. I'm > guessing there's a better approach? > > Thanks, > --tim > > [1] - http://wiki.apache.org/solr/SolrFacetingOverview >
