YottaDB as a data store for Xapian

By way of introduction, I manage YottaDB (https://yottadb.com and 
https://gitlab.com/YottaDB). The core of YottaDB is a hierarchical 
key-value datastore 
(https://docs.yottadb.com/MultiLangProgGuide/cprogram.html and 
https://gitlab.com/YottaDB/DB/YDB). The code base is mature (in daily 
production use since 1986), and very performant, with strongly ACID 
transactions, and replication (to ensure transaction serialization 
performance, updates are done on a single node and propagated; if ACID 
transactions are not important, there are other ways to propagate 
updates between nodes).

YottaDB is 100% FOSS, licensed under AGPL v3 with a clarification 
(https://gitlab.com/YottaDB/DB/YDB/-/blob/master/LICENSE) that software 
which uses YottaDB is not considered a covered work. So if you make 
changes to YottaDB itself, your changes must follow AGPL v3, but if you 
write software that uses YottaDB, you can use any license  you want, 
FOSS or proprietary.

As one of our users has suggested that YottaDB would make a good data 
store for Xapian, I am writing to explore this idea. On a system where 
YottaDB is installed, using it is just a matter of compiling a program 
including the YottaDB header file. So, if Xapian has an abstraction 
layer for the data store, perhaps we can add a software shim to Xapian 
that allows it to use YottaDB. I poked around the Xapian source code 
repository, but such an abstraction layer did not jump out at me.

Questions, comments, concerns, and reactions sought and gratefully 
accepted. Thank you very much.

Regards
– Bhaskar (yes, it's my last name, but that's what everyone calls me)

K.S. Bhaskar
President, YottaDB LLC
40 Lloyd Avenue, Suite 104
Malvern, PA 19355, USA
[email protected]
https://yottadb.com

-- 
YottaDB - Rock solid. Lightning fast. Secure. Pick any three.