State of Elastic/Open Search support in Fuseki

[Adrian Gschwend]

According to https://jena.apache.org/documentation/query/text-query.html 
there was support for text search using Elastic instead of Lucene in 
Fuseki at some point at least. But from what I can see it was removed 
(?) in 4.x.

We have a use-case where faceted search is important and this is quite 
hard in SPARQL 1.1, paging & counting is less than ideal. Either the 
queries get very complex or the counts are wrong.

What was the reason for removing that code, lack of maintenance? If so, 
any ideas on how much work it would be to bring this to the 4.x codebase 
again? I guess it might make sense to switch to OpenSearch as well 
instead with the Elastic license issues.

Anyone has or had Elastic in use in Fuseki & can share some experience? 
I found some posts here and there but not much details about how the 
integration worked.

regards

Adrian