hsearch

BM25 full-text search for PostgreSQL — a Tantivy-backed bm25 index access method. This is its Debian/Ubuntu apt repository.

Install

curl -fsSL https://hyperiondb.github.io/search/install.sh | sudo bash
sudo apt-get install -y postgresql-18-hsearch

Then enable it:

sudo sed -i "s/^#\?shared_preload_libraries.*/shared_preload_libraries = 'hsearch'/" \
  /etc/postgresql/18/main/postgresql.conf
sudo systemctl restart postgresql

CREATE EXTENSION hsearch;

Source & docs: github.com/hyperiondb/hsearch