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Posted to dev@lucene.apache.org by "Shawn Heisey (JIRA)" <ji...@apache.org> on 2016/11/28 12:51:02 UTC
[jira] [Updated] (SOLR-2242) Get distinct count of names for a
facet field
[ https://issues.apache.org/jira/browse/SOLR-2242?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Shawn Heisey updated SOLR-2242:
-------------------------------
Fix Version/s: (was: 4.9)
5.2
> 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: 5.2, 6.0
>
> 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).
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