[jira] [Created] (SOLR-11695) JSON FacetModule needs equivilents for StatsComponent's "count" and "missing" features

["Hoss Man (JIRA)" <ji...@apache.org>]

Hoss Man created SOLR-11695:
-------------------------------

             Summary: JSON FacetModule needs equivilents for StatsComponent's "count" and "missing" features
                 Key: SOLR-11695
                 URL: https://issues.apache.org/jira/browse/SOLR-11695
             Project: Solr
          Issue Type: Improvement
      Security Level: Public (Default Security Level. Issues are Public)
            Reporter: Hoss Man


StatsComponent supports stats named "count" and "missing":
* count: for the set of documents we're computing stats over, "how many _non-distinct_ values exist in those documents in the specified field?" (or in the case of an arbitrary function: "in how many of these documents does true==ValueSource.exist()" ?)
** no to be confused with the number of _unique_ values (aprox "cardinality" or exact "countDistinct")
* missing: for the set of documents we're computing stats over, "how many of those documents do not have any value in the specified field?" (or in the case of an arbitrary function: "in how many of thse documents does false==ValueSource.exist()" ?)

(NOTE: for a single valued field, these are essentially inveses of each other, but for multivalued fields "count" actaully returns the total number of "value instances" not just the number of docs that have at least one value)

AFAICT there is no equivalent functionality supported by the JSON FacetModule, which will be a blocker preventing some users from migrating from using stats.field (or facet.pivot+stats.field) to json.facet.



--
This message was sent by Atlassian JIRA
(v6.4.14#64029)

---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@lucene.apache.org
For additional commands, e-mail: dev-help@lucene.apache.org