[jira] [Updated] (SOLR-7830) topdocs facet function

["Yonik Seeley (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SOLR-7830?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Yonik Seeley updated SOLR-7830:
-------------------------------
    Attachment: SOLR-7830.patch

Here's a draft patch - no distributed merging code yet.

This is the first facet function / aggregation that supports JSON rather than just function query notation.  The query parameters are taken from the JSON Request API: http://yonik.com/solr-json-request-api/

// retrieve the top document per facet bucket based on another lucene query
top : { topdocs : "another_lucene_query" }

// retrieve the top document per facet bucket based on the main query & sort
top : "topdocs()"

// A bigger example using all of the supported args:
{code}
top : {
  type : topdocs,
  query : "another_lucene_query",
  offset : 0,
  limit : 5,
  sort : "field_i desc",
  fields : "id,*_s,custom_val:add(field1,field2)"
}
{code}

> topdocs facet function
> ----------------------
>
>                 Key: SOLR-7830
>                 URL: https://issues.apache.org/jira/browse/SOLR-7830
>             Project: Solr
>          Issue Type: New Feature
>          Components: Facet Module
>            Reporter: Yonik Seeley
>         Attachments: SOLR-7830.patch
>
>
> A topdocs() facet function would return the top N documents per facet bucket.
> This would be a big step toward unifying grouping and the new facet module.



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