[ https://issues.apache.org/jira/browse/SOLR-8998?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Dr Oleg Savrasov updated SOLR-8998: ----------------------------------- Attachment: SOLR_8998.patch Unfortunately definition like facet: { productsCount: "unique(_root_)" } assumes iterating one by one through all the facet values and creating appropriate docset for each of them. In order to leverage algorithm implemented in BlockJoinFieldFacetAccumulator, I propose to introduce a new keyword for JSON facet: rollup : <Parent documents query>. The example of request should look like: curl http://localhost:8983/solr/collection1/query -d 'q={!parent which=type_s:parent}type_s:child&rows=0& json.facet={ filter_by_children: { type:query, q:"type_s:child", domain: { blockChildren : "type_s:parent" }, facet:{ colors:{ type : terms, field : COLOR_s, rollup : "type_s:parent" }, sizes:{ type : terms, field : SIZE_s, rollup : "type_s:parent" }}}} The patch for proposed solution is attached. For the above request it returns facets=={ count:1, filter_by_children:{count:2, colors:{buckets:[ {val:Blue, count:1, rollup:1}, {val:Red, count:1, rollup:1} ]}, sizes:{buckets:[ {val:XL, count:2, rollup:1} ]}}}} See TestFacetRollup. > JSON Facet API child roll-ups > ----------------------------- > > Key: SOLR-8998 > URL: https://issues.apache.org/jira/browse/SOLR-8998 > Project: Solr > Issue Type: New Feature > Components: Facet Module > Reporter: Yonik Seeley > Attachments: SOLR_8998.patch > > > The JSON Facet API currently has the ability to map between parents and > children ( see http://yonik.com/solr-nested-objects/ ) > This issue is about adding a true rollup ability where parents would take on > derived values from their children. The most important part (and the most > difficult part) will be the external API. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org