PGroonga is a PostgreSQL extension. PGroonga provides a new index access
method that uses Groonga.

Groonga is an embeddable super fast full text search engine. It can be
embedded into MySQL. Mroonga is a storage engine that is based on Groonga.
Groonga can also work as standalone search engine.

PostgreSQL supports full text search against languages that use only
alphabet and digit. It means that PostgreSQL doesn't support full text
search against Japanese, Chinese and so on. You can use super fast full
text search feature against all languages by installing PGroonga into your
PostgreSQL!

WWW: https://pgroonga.github.io/