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From "Ethan Gruber (Commented) (JIRA)" <>
Subject [jira] [Commented] (SOLR-2242) Get distinct count of names for a facet field
Date Mon, 23 Jan 2012 14:47:44 GMT


Ethan Gruber commented on SOLR-2242:

+1 for me too.  I have been using this feature for almost a year.  I plan to upgrade to the
newest patch/Solr trunk code, but the patch doesn't apply to the current trunk.  Do I have
to check out the revision that dates to 12/21/11 to get this to work?
> Get distinct count of names for a facet field
> ---------------------------------------------
>                 Key: SOLR-2242
>                 URL:
>             Project: Solr
>          Issue Type: New Feature
>          Components: Response Writers
>    Affects Versions: 4.0
>            Reporter: Bill Bell
>            Assignee: Erick Erickson
>            Priority: Minor
>             Fix For: 4.0
>         Attachments:, SOLR-2242-notworkingtest.patch, SOLR-2242.patch,
SOLR-2242.patch, SOLR-2242.patch, SOLR-2242.shard.patch, SOLR-2242.shard.patch, SOLR-2242.shard.withtests.patch,
SOLR-2242.solr3.1-fix.patch, SOLR-2242.solr3.1.patch, SOLR.2242.solr3.1.patch, SOLR.2242.v2.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:
> http://localhost:8983/solr/select?shards=localhost:8983/solr,localhost:7574/solr&indent=true&q=*:*&facet=true&facet.mincount=1&facet.numFacetTerms=2&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.numFacetTerms=0&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.numFacetTerms=1&facet.limit=-1&facet.field=price
> This currently only works on facet.field.
> {code}
> <lst name="facet_fields">
>   <lst name="price">
>     <int name="numFacetTerms">14</int>
>     <int name="0.0">3</int><int name="11.5">1</int><int name="19.95">1</int><int
name="74.99">1</int><int name="92.0">1</int><int name="179.99">1</int><int
name="185.0">1</int><int name="279.95">1</int><int name="329.95">1</int><int
name="350.0">1</int><int name="399.0">1</int><int name="479.95">1</int><int
name="649.99">1</int><int name="2199.0">1</int>
>   </lst>
> </lst>
> {code} 
> Several people use this to get the group.field count (the # of groups).

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