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From "Antoine Le Floc'h (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-2242) Get distinct count of names for a facet field
Date Tue, 28 Feb 2012 14:45:48 GMT

    [ https://issues.apache.org/jira/browse/SOLR-2242?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13218232#comment-13218232
] 

Antoine Le Floc'h commented on SOLR-2242:
-----------------------------------------

About the distribution issue, it looks like https://issues.apache.org/jira/browse/SOLR-3134
has some similar thinking as my post from 03/Jan/12 : show the info per shard. Even though
the counter info cannot be aggregated across shards, knowing what the counter is for each
shard would allow each user to use the info as he wants. It would work in single shard too.
                
> 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
>            Reporter: Bill Bell
>            Assignee: Erick Erickson
>            Priority: Minor
>             Fix For: 4.0
>
>         Attachments: NumFacetTermsFacetsTest.java, 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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