pg_search

pg_search is a Ruby gem that builds named scopes for Active Record models, taking advantage of PostgreSQL’s full-text search. The README is the reference for its setup and search options.

Rails projects get the gem’s rake tasks through a Railtie, which the README contrasts with non-Rails projects. The gem is installed with gem install or a Gemfile line, and it needs a PostgreSQL server. Some of its features need PostgreSQL extensions.

Casebook, PBC maintains the gem.

Worth knowing

The name is shared with ParadeDB’s pg_search, a PostgreSQL extension and a separate project with its own record. The gem has no project site of its own, so the repository is the reference.