Groonga is a column-oriented DBMS with a full-text search index.
Inverted Index (Full Text)
Decomposition Storage Model (Columnar)
https://groonga.org
https://github.com/groonga/groonga
https://groonga.org/docs
@groonga
Brazil, Inc.
JP
2009
Commercial
C
Linux, OS X, Solaris, Windows
LGPL v2