[SOLR-16139] [Regression] JSON stat facet functions not working on analysed String (SortableTextField)

• Type: Bug
• Status: Open
• Priority: Critical
• Resolution: Unresolved
• Affects Version/s: 8.11.1
• Component/s: faceting
• Labels: faceting json
• Assignee: Unassigned
• Reporter: Jan Verbeeck
• Created: 01/Apr/22 14:25
• Updated: 16/Feb/24 20:04

Description

After updating Solr on my dev environment to version 8.11.1 I noticed nested json stat facets where not working anymore. When downgrading to 8.11.0 worked as before.

It seems the problem is related to using an analysed string fieldtype like 'solr.SortableTextField' and then using a subfacet with a stat facet function like 'avg'.
 
I have managed to reproduce this behaviour using docker. You can find the repository here: solr-json-repro
 
The only change I made to the default managed-schema is to change the type of the dynamic field '*_s' to 'text_gen_sort'.

Issue Links

• is caused by: SOLR-8319 NPE when creating pivot
• is related to: SOLR-13056 SortableTextField is trappy for faceting