[SOLR-2522] add syntax for selecting the min or max of a multivalued field in value source functions

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 5.3, 6.0
• Assignee: Chris M. Hostetter
• Reporter: Bill Bell
• Created: 17/May/11 01:58
• Updated: 06/Nov/24 23:41
• Resolved: 31/Jul/15 16:49

Description

Initial request...

Switch max() and min() functions to work on multiValued fields so we can

do sort=min(fieldname) asc and the sort would work on multiValued fields...

...this specific syntax has been spun off into SOLR-7853, but the underlying functionality s being implemented here using a new optional second argument to the field() function: field(multivalued_field_name,min) and field(multivalued_field_name,max).

Issue Links

• is related to: SOLR-7853 support min(multivalued_field_name) and max(multivalued_field_name) syntax
• is required by: SOLR-2339 No error reported when sorting on a multiValued field
• relates to: SOLR-8001 Using value sources on a multi-valued field can result in an exception if no data
• relates to: LUCENE-6709 Add RandomAccessOrds support to UninvertedReader's SortedSetDocValues impl (DocTermOrds.Iterator)