[jira] [Created] (SOLR-6280) Collapse QParser should give error for multiValued field

["David Smiley (JIRA)" <ji...@apache.org>]

David Smiley created SOLR-6280:
----------------------------------

             Summary: Collapse QParser should give error for multiValued field
                 Key: SOLR-6280
                 URL: https://issues.apache.org/jira/browse/SOLR-6280
             Project: Solr
          Issue Type: Improvement
          Components: search
            Reporter: David Smiley
            Priority: Minor


The Collapse QParser does give results if you collapse on a multi-valued field, but the document->value is somewhat arbitrarily chosen based on the internals of the FieldCache (FieldCacheImpl.SortedDocValuesCache).

Note that the Grouping functionality accesses values via FieldType.getValueSource which is a layer of abstraction above that includes a multiValued error check.

Collapse should throw an error here.

p.s. easy to test with exampledocs collapsing on "cat"



--
This message was sent by Atlassian JIRA
(v6.2#6252)

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