SWC-DB ("Super Wide Column Database") is a column-family DBMS that supports SQL.
Column Family / Wide-Column
Not Supported
SQL
https://www.swcdb.org
https://github.com/kashirin-alex/swc-db
https://github.com/kashirin-alex/swc-db/tree/master/docs
Kashirin Alex
IL
2019
Hobby, Open Source
C++
GPL v3