[buro9]

I have found Postgres to be good enough for search.

As in... it works well enough, and the advantage of not having to add other tech makes it a no-brainer, I've had zero support issues or customer complaints and most of my applications use full text search heavily.

The big advantage over other approaches, because it's SQL and it's there in my database where I also store users and permissions knowledge... I can permission-limit my fulltext searches.