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Shalin Shekhar Mangar commented on SOLR-2242: --------------------------------------------- I think this can be closed now that SOLR-6968 has added support for fast approximate cardinality estimation. > Get distinct count of names for a facet field > --------------------------------------------- > > Key: SOLR-2242 > URL: https://issues.apache.org/jira/browse/SOLR-2242 > Project: Solr > Issue Type: New Feature > Components: Response Writers > Affects Versions: 4.0-ALPHA > Reporter: Bill Bell > Priority: Minor > Fix For: 4.9, Trunk > > Attachments: SOLR-2242-3x.patch, SOLR-2242-3x_5_tests.patch, > SOLR-2242-solr40-3.patch, SOLR-2242.patch, SOLR-2242.patch, SOLR-2242.patch, > SOLR-2242.shard.withtests.patch, SOLR-2242.solr3.1-fix.patch, > SOLR-2242.solr3.1.patch, SOLR.2242.solr3.1.patch > > > When returning facet.field=<name of field> you will get a list of matches for > distinct values. This is normal behavior. This patch tells you how many > distinct values you have (# of rows). Use with limit=-1 and mincount=1. > The feature is called "namedistinct". Here is an example: > Parameters: > facet.numTerms or f.<field>.facet.numTerms = true (default is false) - turn > on distinct counting of terms > facet.field - the field to count the terms > It creates a new section in the facet section... > http://localhost:8983/solr/select?shards=localhost:8983/solr,localhost:7574/solr&indent=true&q=*:*&facet=true&facet.mincount=1&facet.numTerms=true&facet.limit=-1&facet.field=price > http://localhost:8983/solr/select?shards=localhost:8983/solr,localhost:7574/solr&indent=true&q=*:*&facet=true&facet.mincount=1&facet.numTerms=false&facet.limit=-1&facet.field=price > http://localhost:8983/solr/select?shards=localhost:8983/solr,localhost:7574/solr&indent=true&q=*:*&facet=true&facet.mincount=1&facet.numTerms=true&facet.limit=-1&facet.field=price > This currently only works on facet.field. > {code} > <lst name="facet_counts"> > <lst name="facet_queries"/> > <lst name="facet_fields">...</lst> > <lst name="facet_numTerms"> > <lst name="localhost:8983/solr/"> > <int name="price">14</int> > </lst> > <lst name="localhost:8080/solr/"> > <int name="price">14</int> > </lst> > </lst> > <lst name="facet_dates"/> > <lst name="facet_ranges"/> > </lst> > OR with no sharding- > <lst name="facet_numTerms"> > <int name="price">14</int> > </lst> > {code} > Several people use this to get the group.field count (the # of groups). -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org