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https://issues.apache.org/jira/browse/SOLR-2242?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13095135#comment-13095135
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Nguyen Kien Trung edited comment on SOLR-2242 at 9/1/11 5:50 AM:
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I'm using Solr 3.2. Instead of patching, I extend {{SimpleFacets}} and
{{FacetComponent}}, apply the changes mentioned in [^SOLR-2242.solr3.1.patch]
with a small fix ([^SOLR-2242.solr3.1-fix.patch]).
{code}
int offset = params.getFieldInt(facetValue, FacetParams.FACET_OFFSET, 0);
....
resCount.add("numTerms", counts.size() + offset);
{code}
as {{counts}} contains list of terms started from the given {{offset}}
It accepts param {{facet.numTerms=true|false}} and produce the output
{code}
<lst name="facet_fields">
<lst name="color">
<int name="numTerms">124</int>
<lst name="counts" />
<int name="red">4</int>
<int name="blue">3</int>
</lst>
</lst>
</lst>
{code}
Not yet tested with sharding
was (Author: trung):
I'm using Solr 3.2. Instead of patching, I extend {{SimpleFacets}} and
{{FacetComponent}}, apply the changes mentioned in [^SOLR-2242.solr3.1.patch]
with a small fix ([^SOLR\-2242.solr3.1-fix.patch]).
{code}
int offset = params.getFieldInt(facetValue, FacetParams.FACET_OFFSET, 0);
....
resCount.add("numTerms", counts.size() + offset);
{code}
as {{counts}} contains list of terms started from the given {{offset}}
It accepts param {{facet.numTerms=true|false}} and produce the output
{code}
<lst name="facet_fields">
<lst name="color">
<int name="numTerms">124</int>
<lst name="counts" />
<int name="red">4</int>
<int name="blue">3</int>
</lst>
</lst>
</lst>
{code}
Not yet tested with sharding
> 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: Simon Willnauer
> Priority: Minor
> Fix For: 4.0
>
> Attachments: NumFacetTermsFacetsTest.java,
> SOLR-2242-notworkingtest.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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