[SOLR-10132] Support facet.matches to cull facets returned with a regex

• Type: New Feature
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 6.4.1
• Fix Version/s: 7.2, 8.0
• Component/s: faceting
• Assignee: Christine Poerschke
• Reporter: Gus Heck
• Created: 14/Feb/17 03:07
• Updated: 08/Jun/19 15:31
• Resolved: 03/Nov/17 21:23

Description

I recently ran into a case where I really wanted to only return the next level of a hierarchical facet, and while I was able to do that with a coordinated set of dynamic fields, it occurred to me that this would have been much much easier if I could have simply used PathHierarchyTokenizer and written

&facet.matches="/my/current/prefix/[^/]+$"

thereby limiting the returned facets to the next level down and not return the additional N levels I didn't (yet) want to display (numbering in the thousands near the top of the tree). I suspect there are other good use cases, and the patch seemed relatively tractable.

Issue Links

• is related to: SOLR-9914 SimpleFacets: refactor "contains" check into "SubstringBytesRefFilter" class
• is related to: SOLR-9912 SimpleFacets - support facet.excludeTerms parameter
• is related to: SOLR-10155 Clarify logic for term filters on numeric types