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https://issues.apache.org/jira/browse/SOLR-64?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12703221#action_12703221
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Koji Sekiguchi edited comment on SOLR-64 at 4/27/09 10:12 AM:
--------------------------------------------------------------
First draft, need more test. This version doesn't support distributed
environment.
- schema setup
{code:xml|title=schema.xml}
<fieldType name="hierarchy" class="solr.HierarchicalFacetField"
omitNorms="true" positionIncrementGap="0" indexed="true" stored="false" />
<field name="hiefacet" type="hierarchy" indexed="true" stored="true"
multiValued="true" />
{code}
- sample data
{code:xml|title=sample data}
<add>
<doc>
<field name="id">1</field>
<field name="hiefacet">A/B/E/</field>
<field name="hiefacet">B/B/D/E/</field>
</doc>
<doc>
<field name="id">2</field>
<field name="hiefacet">A/B/E/</field>
</doc>
<doc>
<field name="id">3</field>
<field name="hiefacet">A/B/F/</field>
</doc>
<doc>
<field name="id">4</field>
<field name="hiefacet">A/C/G/</field>
</doc>
<doc>
<field name="id">5</field>
<field name="hiefacet">A/C/G/</field>
</doc>
<doc>
<field name="id">6</field>
<field name="hiefacet">A/C/G/</field>
</doc>
<doc>
<field name="id">7</field>
<field name="hiefacet">A/D/</field>
</doc>
<doc>
<field name="id">8</field>
<field name="hiefacet">A/</field>
</doc>
<doc>
<field name="id">9</field>
<field name="hiefacet">B/B/C/</field>
</doc>
</add>
{code}
- usage:
http://localhost:8983/solr/select/?q=*%3A*&version=2.2&start=0&rows=10&indent=on&facet=on&facet.field=hiefacet&wt=json
{code:title=&facet=on&facet.field=hiefacet}
"facet_counts":{
"facet_queries":{},
"facet_fields":{
"hiefacet":[
"sub_facets",[
"A",8,
"path-A","A/",
"sub_facets",[
"B",3,
"path-B","A/B/",
"sub_facets",[
"E",2,
"path-E","A/B/E/",
"F",1,
"path-F","A/B/F/"],
"C",3,
"path-C","A/C/",
"sub_facets",[
"G",3,
"path-G","A/C/G/"],
"D",1,
"path-D","A/D/"],
"B",2,
"path-B","B/",
"sub_facets",[
"B",2,
"path-B","B/B/",
"sub_facets",[
"C",1,
"path-C","B/B/C/",
"D",1,
"path-D","B/B/D/",
"sub_facets",[
"E",1,
"path-E","B/B/D/E/"]]]]]},
"facet_dates":{}}
{code}
- usage: facet.depth
http://localhost:8983/solr/select/?q=*%3A*&version=2.2&start=0&rows=10&indent=on&facet=on&facet.field=hiefacet&facet.depth=2&wt=json
{code:title=&facet.field=hiefacet&facet.depth=2}
"facet_counts":{
"facet_queries":{},
"facet_fields":{
"hiefacet":[
"sub_facets",[
"A",8,
"path-A","A/",
"sub_facets",[
"B",3,
"path-B","A/B/",
"C",3,
"path-C","A/C/",
"D",1,
"path-D","A/D/"],
"B",2,
"path-B","B/",
"sub_facets",[
"B",2,
"path-B","B/B/"]]]},
"facet_dates":{}}
{code}
- usage: facet.prefix
http://localhost:8983/solr/select/?q=*%3A*&version=2.2&start=0&rows=10&indent=on&facet=on&facet.field=hiefacet&wt=json&facet.prefix=A%2FB%2F
{code:title=&facet=on&facet.field=hiefacet&facet.prefix=A/B/}
"facet_counts":{
"facet_queries":{},
"facet_fields":{
"hiefacet":[
"sub_facets",[
"B",3,
"path-B","A/B/",
"sub_facets",[
"E",2,
"path-E","A/B/E/",
"F",1,
"path-F","A/B/F/"]]]},
"facet_dates":{}}
{code}
was (Author: koji):
First draft, need more test. This version doesn't support distributed
environment.
- schema setup
{code:xml|title=schema.xml}
<fieldType name="hierarchy" class="solr.HierarchicalFacetField"
omitNorms="true" positionIncrementGap="0" indexed="true" stored="false" />
<field name="hiefacet" type="hierarchy" indexed="true" stored="true"
multiValued="true" />
{code}
- sample data
{code:xml|title=sample data}
<add>
<doc>
<field name="id">1</field>
<field name="hiefacet">A/B/E/</field>
<field name="hiefacet">B/B/D/E/</field>
</doc>
<doc>
<field name="id">2</field>
<field name="hiefacet">A/B/E/</field>
</doc>
<doc>
<field name="id">3</field>
<field name="hiefacet">A/B/F/</field>
</doc>
<doc>
<field name="id">4</field>
<field name="hiefacet">A/C/G/</field>
</doc>
<doc>
<field name="id">5</field>
<field name="hiefacet">A/C/G/</field>
</doc>
<doc>
<field name="id">6</field>
<field name="hiefacet">A/C/G/</field>
</doc>
<doc>
<field name="id">7</field>
<field name="hiefacet">A/D/</field>
</doc>
<doc>
<field name="id">8</field>
<field name="hiefacet">A/</field>
</doc>
<doc>
<field name="id">9</field>
<field name="hiefacet">B/B/C/</field>
</doc>
</add>
{code}
- usage:
http://localhost:8983/solr/select/?q=*%3A*&version=2.2&start=0&rows=10&indent=on&facet=on&facet.field=hiefacet&wt=json
{code:json}
"facet_counts":{
"facet_queries":{},
"facet_fields":{
"hiefacet":[
"sub_facets",[
"A",8,
"path-A","A/",
"sub_facets",[
"B",3,
"path-B","A/B/",
"sub_facets",[
"E",2,
"path-E","A/B/E/",
"F",1,
"path-F","A/B/F/"],
"C",3,
"path-C","A/C/",
"sub_facets",[
"G",3,
"path-G","A/C/G/"],
"D",1,
"path-D","A/D/"],
"B",2,
"path-B","B/",
"sub_facets",[
"B",2,
"path-B","B/B/",
"sub_facets",[
"C",1,
"path-C","B/B/C/",
"D",1,
"path-D","B/B/D/",
"sub_facets",[
"E",1,
"path-E","B/B/D/E/"]]]]]},
"facet_dates":{}}
{code}
- usage: facet.depth
http://localhost:8983/solr/select/?q=*%3A*&version=2.2&start=0&rows=10&indent=on&facet=on&facet.field=hiefacet&facet.depth=2&wt=json
{code:json}
"facet_counts":{
"facet_queries":{},
"facet_fields":{
"hiefacet":[
"sub_facets",[
"A",8,
"path-A","A/",
"sub_facets",[
"B",3,
"path-B","A/B/",
"C",3,
"path-C","A/C/",
"D",1,
"path-D","A/D/"],
"B",2,
"path-B","B/",
"sub_facets",[
"B",2,
"path-B","B/B/"]]]},
"facet_dates":{}}
{code}
- usage: facet.prefix
http://localhost:8983/solr/select/?q=*%3A*&version=2.2&start=0&rows=10&indent=on&facet=on&facet.field=hiefacet&wt=json&facet.prefix=A%2FB%2F
{code:json}
"facet_counts":{
"facet_queries":{},
"facet_fields":{
"hiefacet":[
"sub_facets",[
"B",3,
"path-B","A/B/",
"sub_facets",[
"E",2,
"path-E","A/B/E/",
"F",1,
"path-F","A/B/F/"]]]},
"facet_dates":{}}
{code}
> strict hierarchical facets
> --------------------------
>
> Key: SOLR-64
> URL: https://issues.apache.org/jira/browse/SOLR-64
> Project: Solr
> Issue Type: New Feature
> Components: search
> Reporter: Yonik Seeley
> Fix For: 1.5
>
> Attachments: SOLR-64.patch
>
>
> Strict Facet Hierarchies... each tag has at most one parent (a tree).
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